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View Full Version : [ubuntu] Cannot Reinstall Dual Boot Ubunto with Windows 7


josephconvert
November 29th, 2018, 01:46 PM
I have Windows 7 dual booting with Ubuntu. A Ubuntu upgrade went wrong and could not be mended.


So I followed instructions from Ubuntu forums to remove Ubuntu so that I could reinstall it with the latest version. I removed the Ubuntu partitions and then mended Windows boot with the Windows repair disk. This let me boot directly into Windows 7.


I left the empty space where Ubuntu had been so that I could reinstall it there, on the same hard drive as Windows 7.


So I booted into the Ubuntu live DVD and when it was loaded I clicked on Install Ubuntu. I followed the steps until it said there was no operating system on the computer, and it gave the optin to either install on the used partitions, or in the free space.


I stopped at this point because it could not find Windows 7 to install alongside.


I have looked at the forums for a solution to this problem but found none. One talks of UEFI but my computer is old and does not have UEFI but the old BIOS.


I am assuming that although the Windows MBR is restored, the boot partition still has something Grub left behind, which is why the new install of Ubuntu cannot detect Windows 7.


I have SuperGrub 2 live CD and this detects Windows 7 and lets me boot from it.


Help for this problem would be appreciated.
oldfred
November 29th, 2018, 04:05 PM
Is Windows hibernated. With Windows 7 you have to do that, where Windows 8 or 10 turns on fast start up which is hibernation automatically.
Did you convert Windows 7 partitions from basic to dynamic?

Post these from Ubuntu live installer:
sudo parted -l
sudo fdisk -lu
josephconvert
November 29th, 2018, 04:16 PM
Thank you. When I fist installed Ubuntu I did not hibernate Widnows 7. I simply left space on the hard drive and booted from Ubuntu Live CD and installed with no problems. I did not convert Windows 7 in any way. It is all the same as when I first installed Ubuntu. The only difference is that after removing the Ubuntu partians and leaving empty space again, the install from Ubuntu Live cannot detect Windows 7.

I suspect something from the old install is still in the boot sector, maybe part of Grub, and this is confusing the detection. As I said before, if I boot from SuperGrub Live CD is finds Windows 7 straight away and lets me boot into it.

My question is, how can I restore the Windows 7 boot partition to what it was before ever dual booting? I suspect if that were done, the Ubuntu Live CD would detect Windows 7.

Will get back with resulst from
sudo parted -l
sudo fdisk -lu
josephconvert
November 29th, 2018, 05:02 PM
Here are the results of the two commands:


mint@mint:~$ sudo fdisk -lu
Disk /dev/loop0: 1.7 GiB, 1859526656 bytes, 3631888 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xe515b4d6


Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 1324061234 1324059187 631.4G 7 HPFS/NTFS/exFAT
/dev/sda2 1324062718 1953523711 629460994 300.2G 5 Extended

Partition 2 does not start on physical sector boundary.

Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0008d2ad


Device Boot Start End Sectors Size Id Type
/dev/sdb1 16126 976768064 976751939 465.8G f W95 Ext'd (LBA)
/dev/sdb5 16128 254117026 254100899 121.2G 7 HPFS/NTFS/exFAT
/dev/sdb6 254132298 717591419 463459122 221G 7 HPFS/NTFS/exFAT
/dev/sdb7 * 717591483 976768064 259176582 123.6G 7 HPFS/NTFS/exFAT

Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xbf9bbf9b


Device Boot Start End Sectors Size Id Type
/dev/sdc1 * 2048 976773119 976771072 465.8G 7 HPFS/NTFS/exFAT

Disk /dev/sdd: 29.2 GiB, 31376707072 bytes, 61282631 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

Device Boot Start End Sectors Size Id Type
/dev/sdd1 32 61282630 61282599 29.2G c W95 FAT32 (LBA)
mint@mint:~$


I was not sure if this command was a letter ‘l’ or a number ‘1’. Here are the results form both.



mint@mint:~$ sudo parted -1
parted: invalid option -- '1'
Usage: parted [-hlmsv] [-a<align>] [DEVICE [COMMAND [PARAMETERS]]...]
mint@mint:~$





mint@mint:~$ sudo parted -l
Error: Invalid partition table on /dev/sda -- wrong signature 0.
Ignore/Cancel?
QIII
November 29th, 2018, 05:04 PM
Are you using Mint or Ubuntu?

Also: Please enclose all terminal commands and their results in code tags. This preserves formatting and makes your posts easier to read.

To use code tags, either --

1. Click the # button above the text entry box, place your cursor between the code tags that appear and type or paste your text. Alternatively, type or paste your text, highlight it and then click the # button.

2. Type
before your text and after your text. The square brackets are required.
oldfred
November 29th, 2018, 05:07 PM
It is el, not one, capital I.
Are you installing Mint? There is a separate sub-forum for Mint as it is not exactly Ubuntu. I can move thread if so.

Do not see anything there.
Can you partition in advance with gparted?
If Windows needs chkdsk that also can prevent Linux NTFS driver from seeing the NTFS partition.
Also gparted may show a red or yellow icon on NTFS if issues. Clicking on icon may tell more about what issue is.
josephconvert
November 29th, 2018, 08:03 PM
Thank you for your help. I have run checkdisk and it found no errors.

I have the same issue with Ubuntu and with Mint. I used Mint live CD to followyou instructions because it loads faster than Ubuntu.

I might try formatting the empty space on the drive left when removing the Ubuntu partitions and see if that make a difference.
josephconvert
November 30th, 2018, 03:51 PM
The SuperGrup Live CD gave me this information which may show what the problem is:

Boot Info Script 8f991e4 + Boot-Repair extra info [Boot-Info 25oct2017]



============================= Boot Info Summary: ===============================

=> Windows 7/8/2012 is installed in the MBR of /dev/sda.
=> Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for /boot/grub in partition 6.
=> Grub2 (v2.00) is installed in the MBR of /dev/sdc and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos6)/boot/grub. It also embeds following components:

modules
---------------------------------------------------------------------------
biosdisk fshelp ext2 part_msdos
---------------------------------------------------------------------------

sda1: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe

sda2: __________________________________________________ ________________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sdb1: __________________________________________________ ________________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sdb5: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows 2000/XP: NTFS
Boot sector info: According to the info in the boot sector, sdb5 starts
at sector 63.
Operating System:
Boot files:

sdb6: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows 2000/XP: NTFS
Boot sector info: According to the info in the boot sector, sdb6 starts
at sector 63.
Operating System:
Boot files:

sdb7: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows 2000/XP: NTFS
Boot sector info: According to the info in the boot sector, sdb7 starts
at sector 63.
Operating System:
Boot files:

sdc1: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows Vista: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows XP
Boot files: /boot.ini /ntldr /NTDETECT.COM

============================ Drive/Partition Info: =============================

Drive: sda __________________________________________________ ___________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sda1 * 2,048 1,324,061,234 1,324,059,187 7 NTFS / exFAT / HPFS
/dev/sda2 1,324,062,718 1,953,523,711 629,460,994 5 Extended
Invalid MBR Signature found.
Empty Partition.


Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sdb1 16,126 976,768,064 976,751,939 f W95 Extended (LBA)
/dev/sdb5 16,128 254,117,026 254,100,899 7 NTFS / exFAT / HPFS
/dev/sdb6 254,132,298 717,591,419 463,459,122 7 NTFS / exFAT / HPFS
/dev/sdb7 * 717,591,483 976,768,064 259,176,582 7 NTFS / exFAT / HPFS


Drive: sdc __________________________________________________ ___________________
Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sdc1 * 2,048 976,773,119 976,771,072 7 NTFS / exFAT / HPFS


"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 8422825722824DDC ntfs New Volume
/dev/sdb5 01CB880F3EE23450 ntfs DATA
/dev/sdb6 01CB880F92E131F0 ntfs DATA2
/dev/sdb7 01CB93ADA675E2C0 ntfs DATA3
/dev/sdc1 1A2815222814FF07 ntfs
/dev/sr0 2017-10-29-00-56-18-00 iso9660 Boot-Repair-Disk 64bit
/dev/zram0 5ea6e8e2-af27-415f-bb5e-4e80712b7c3e swap
/dev/zram1 3e5ac8f9-af5f-4e76-8ae1-b4e345861f84 swap

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root 9 Nov 29 10:51 ata-Optiarc_DVD_RW_AD-7260S -> ../../sr0
lrwxrwxrwx 1 root root 9 Nov 29 10:56 ata-ST1000DX001-1CM162_Z1DAF2BX -> ../../sda
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST1000DX001-1CM162_Z1DAF2BX-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST1000DX001-1CM162_Z1DAF2BX-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 Nov 29 10:56 ata-ST3500418AS_5VMJ5M4L -> ../../sdb
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST3500418AS_5VMJ5M4L-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST3500418AS_5VMJ5M4L-part5 -> ../../sdb5
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST3500418AS_5VMJ5M4L-part6 -> ../../sdb6
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST3500418AS_5VMJ5M4L-part7 -> ../../sdb7
lrwxrwxrwx 1 root root 9 Nov 29 10:56 ata-ST3500418AS_6VMPGWBV -> ../../sdc
lrwxrwxrwx 1 root root 10 Nov 29 10:56 ata-ST3500418AS_6VMPGWBV-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 9 Nov 29 10:56 wwn-0x5000c5002ba68b35 -> ../../sdc
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c5002ba68b35-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 9 Nov 29 10:56 wwn-0x5000c5002bc2eb16 -> ../../sdb
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c5002bc2eb16-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c5002bc2eb16-part5 -> ../../sdb5
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c5002bc2eb16-part6 -> ../../sdb6
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c5002bc2eb16-part7 -> ../../sdb7
lrwxrwxrwx 1 root root 9 Nov 29 10:56 wwn-0x5000c50066620525 -> ../../sda
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c50066620525-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Nov 29 10:56 wwn-0x5000c50066620525-part2 -> ../../sda2

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sr0 /cdrom iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


================================ sdc1/boot.ini: ================================

--------------------------------------------------------------------------------
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /usepmtimer
--------------------------------------------------------------------------------


ADDITIONAL INFORMATION :
=================== log of boot-info 20181129_1056 ===================
boot-info version : 4ppa62
boot-sav version : 4ppa62
boot-sav-extra version : 4ppa62
glade2script version : 3.2.3~ppa4
Error: Invalid partition table on /dev/sda -- wrong signature 0.
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
Error: Invalid partition table - recursive partition on /dev/sr0.
Partition 2 does not start on physical sector boundary.
boot-info is executed in live-session (Boot-Repair-Disk 64bit 1oct2017, zesty, Ubuntu, x86_64)
CPU op-mode(s): 32-bit, 64-bit
file=/cdrom/preseed/lubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --
ls: cannot access '/home/usr/.config': No such file or directory

=================== os-prober:
/dev/sda1:Windows 7:Windows:chain
/dev/sdc1:Microsoft Windows XP Professional:Windows1:chain

=================== blkid:
/dev/sda1: LABEL="New Volume" UUID="8422825722824DDC" TYPE="ntfs" PARTUUID="e515b4d6-01"
/dev/sdb5: LABEL="DATA" UUID="01CB880F3EE23450" TYPE="ntfs" PARTUUID="0008d2ad-05"
/dev/sdb6: LABEL="DATA2" UUID="01CB880F92E131F0" TYPE="ntfs" PARTUUID="0008d2ad-06"
/dev/sdb7: LABEL="DATA3" UUID="01CB93ADA675E2C0" TYPE="ntfs" PARTUUID="0008d2ad-07"
/dev/sdc1: UUID="1A2815222814FF07" TYPE="ntfs" PARTUUID="bf9bbf9b-01"
/dev/sr0: UUID="2017-10-29-00-56-18-00" LABEL="Boot-Repair-Disk 64bit" TYPE="iso9660" PTUUID="6b8b4567" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/zram0: UUID="5ea6e8e2-af27-415f-bb5e-4e80712b7c3e" TYPE="swap"
/dev/zram1: UUID="3e5ac8f9-af5f-4e76-8ae1-b4e345861f84" TYPE="swap"


2 disks with OS, 2 OS : 0 Linux, 0 MacOS, 2 Windows, 0 unknown type OS.

Partition 2 does not start on physical sector boundary.
Partition 2 does not start on physical sector boundary.

=================== UEFI/Legacy mode:
This live-session is not in EFI-mode.
SecureBoot maybe enabled.


=================== PARTITIONS & DISKS:
sda1 : sda, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, is-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, bootmgr, is-winboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, notbiosboot, /mnt/boot-sav/sda1.
sdb5 : sdb, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, notbiosboot, /mnt/boot-sav/sdb5.
sdb6 : sdb, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, notbiosboot, /mnt/boot-sav/sdb6.
sdb7 : sdb, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, notbiosboot, /mnt/boot-sav/sdb7.
sdc1 : sdc, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, is-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, ntldr, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, notbiosboot, /mnt/boot-sav/sdc1.

sda : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
sdb : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, not-mmc, no-os, 2048 sectors * 512 bytes
sdc : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:1000GB:scsi:512:4096:unknown:ATA ST1000DX001-1CM1:;

BYT;
/dev/sdb:500GB:scsi:512:512:msdos:ATA ST3500418AS:;
1:8257kB:500GB:500GB:::lba;
5:8258kB:130GB:130GB:ntfs::;
6:130GB:367GB:237GB:ntfs::;
7:367GB:500GB:133GB:ntfs::boot;

BYT;
/dev/sdc:500GB:scsi:512:512:msdos:ATA ST3500418AS:;
1:1049kB:500GB:500GB:ntfs::boot;

BYT;
/dev/zram1:1035MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:1035MB:1035MB:linux-swap(v1)::;

BYT;
/dev/sr0:742MB:scsi:2048:2048:unknown:Optiarc DVD RW AD-7260S:;

BYT;
/dev/zram0:1035MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:1035MB:1035MB:linux-swap(v1)::;

=================== lsblk:
KNAME TYPE FSTYPE SIZE LABEL
loop0 loop squashfs 629.3M
sda disk 931.5G
sda1 part ntfs 631.4G New Volume
sda2 part 1K
sdb disk 465.8G
sdb1 part 1K
sdb5 part ntfs 121.2G DATA
sdb6 part ntfs 221G DATA2
sdb7 part ntfs 123.6G DATA3
sdc disk 465.8G
sdc1 part ntfs 465.8G
sr0 rom iso9660 708M Boot-Repair-Disk 64bit
zram0 disk 987M
zram1 disk 987M

KNAME ROTA RO RM STATE MOUNTPOINT
loop0 1 1 0 /rofs
sda 1 0 0 running
sda1 1 0 0 /mnt/boot-sav/sda1
sda2 1 0 0
sdb 1 0 0 running
sdb1 1 0 0
sdb5 1 0 0 /mnt/boot-sav/sdb5
sdb6 1 0 0 /mnt/boot-sav/sdb6
sdb7 1 0 0 /mnt/boot-sav/sdb7
sdc 1 0 0 running
sdc1 1 0 0 /mnt/boot-sav/sdc1
sr0 1 0 1 running /cdrom
zram0 0 0 0 [SWAP]
zram1 0 0 0 [SWAP]


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1961292k,nr_inodes=490323 ,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode =000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=404292k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=system d)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=30,pgrp=1,timeout=0,minproto=5,max proto=5,direct,pipe_ino=12064)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=404288k,mode=700,ui d=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999 )
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blks ize=4096)
/dev/sdb5 on /mnt/boot-sav/sdb5 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blks ize=4096)
/dev/sdb6 on /mnt/boot-sav/sdb6 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blks ize=4096)
/dev/sdb7 on /mnt/boot-sav/sdb7 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blks ize=4096)
/dev/sdc1 on /mnt/boot-sav/sdc1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blks ize=4096)


=================== ls:
/sys/block/sda (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sda1 sda2 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdb1 sdb5 sdb6 sdb7 size slaves stat subsystem trace uevent
/sys/block/sdc (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdc1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered): autofs block bsg btrfs-control bus cdrom cdrw char console core cpu cpu_dma_latency cuse disk dri dvb dvd dvdrw ecryptfs fb0 fd full fuse hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kmsg kvm lightnvm log mapper mcelog media0 mem memory_bandwidth mqueue net network_latency network_throughput null parport0 port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sdb sdb1 sdb5 sdb6 sdb7 sdc sdc1 sg0 sg1 sg2 sg3 shm snapshot snd sr0 stderr stdin stdout uhid uinput urandom userio vfio vga_arbiter vhci vhost-net vhost-vsock zero
ls /dev/mapper: control

=================== hexdump -n512 -C /dev/sda1
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 08 00 00 |........?.......|
00000020 00 00 00 00 80 00 80 00 32 8a eb 4e 00 00 00 00 |........2..N....|
00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
00000040 f6 00 00 00 01 00 00 00 dc 4d 82 22 57 82 22 84 |.........M."W.".|
00000050 7e 1d 20 66 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |~. f.3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 70 0e 16 68 09 00 66 53 66 53 66 |h...hp..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|
00000110 28 10 b9 d8 0f fc f3 aa e9 5f 01 90 90 66 60 1e |(........_...f`.|
00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|
00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|
00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|
00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|
00000160 0e 16 00 75 bc 07 1f 66 61 c3 a0 f8 01 e8 09 00 |...u...fa.......|
00000170 a0 fb 01 e8 03 00 f4 eb fd b4 01 8b f0 ac 3c 00 |..............<.|
00000180 74 09 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 |t.............A |
00000190 64 69 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 |disk read error |
000001a0 6f 63 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d |occurred...BOOTM|
000001b0 47 52 20 69 73 20 6d 69 73 73 69 6e 67 00 0d 0a |GR is missing...|
000001c0 42 4f 4f 54 4d 47 52 20 69 73 20 63 6f 6d 70 72 |BOOTMGR is compr|
000001d0 65 73 73 65 64 00 0d 0a 50 72 65 73 73 20 43 74 |essed...Press Ct|
000001e0 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f 20 72 65 |rl+Alt+Del to re|
000001f0 73 74 61 72 74 0d 0a 00 8c a9 be d6 00 00 55 aa |start.........U.|
00000200

=================== hexdump -n512 -C /dev/sdb5
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 3f 00 00 00 |........?...?...|
00000020 00 00 00 00 80 00 80 00 98 45 25 0f 00 00 00 00 |.........E%.....|
00000030 03 00 00 00 00 00 00 00 59 54 f2 00 00 00 00 00 |........YT......|
00000040 f6 00 00 00 01 00 00 00 50 34 e2 3e 0f 88 cb 01 |........P4.>....|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb b8 c0 07 |.....3.....|....|
00000060 8e d8 e8 16 00 b8 00 0d 8e c0 33 db c6 06 0e 00 |..........3.....|
00000070 10 e8 53 00 68 00 0d 68 6a 02 cb 8a 16 24 00 b4 |..S.h..hj....$..|
00000080 08 cd 13 73 05 b9 ff ff 8a f1 66 0f b6 c6 40 66 |...s......f...@f|
00000090 0f b6 d1 80 e2 3f f7 e2 86 cd c0 ed 06 41 66 0f |.....?.......Af.|
000000a0 b7 c9 66 f7 e1 66 a3 20 00 c3 b4 41 bb aa 55 8a |..f..f. ...A..U.|
000000b0 16 24 00 cd 13 72 0f 81 fb 55 aa 75 09 f6 c1 01 |.$...r...U.u....|
000000c0 74 04 fe 06 14 00 c3 66 60 1e 06 66 a1 10 00 66 |t......f`..f...f|
000000d0 03 06 1c 00 66 3b 06 20 00 0f 82 3a 00 1e 66 6a |....f;. ...:..fj|
000000e0 00 66 50 06 53 66 68 10 00 01 00 80 3e 14 00 00 |.fP.Sfh.....>...|
000000f0 0f 85 0c 00 e8 b3 ff 80 3e 14 00 00 0f 84 61 00 |........>.....a.|
00000100 b4 42 8a 16 24 00 16 1f 8b f4 cd 13 66 58 5b 07 |.B..$.......fX[.|
00000110 66 58 66 58 1f eb 2d 66 33 d2 66 0f b7 0e 18 00 |fXfX..-f3.f.....|
00000120 66 f7 f1 fe c2 8a ca 66 8b d0 66 c1 ea 10 f7 36 |f......f..f....6|
00000130 1a 00 86 d6 8a 16 24 00 8a e8 c0 e4 06 0a cc b8 |......$.........|
00000140 01 02 cd 13 0f 82 19 00 8c c0 05 20 00 8e c0 66 |........... ...f|
00000150 ff 06 10 00 ff 0e 0e 00 0f 85 6f ff 07 1f 66 61 |..........o...fa|
00000160 c3 a0 f8 01 e8 09 00 a0 fb 01 e8 03 00 fb eb fe |................|
00000170 b4 01 8b f0 ac 3c 00 74 09 b4 0e bb 07 00 cd 10 |.....<.t........|
00000180 eb f2 c3 0d 0a 41 20 64 69 73 6b 20 72 65 61 64 |.....A disk read|
00000190 20 65 72 72 6f 72 20 6f 63 63 75 72 72 65 64 00 | error occurred.|
000001a0 0d 0a 4e 54 4c 44 52 20 69 73 20 6d 69 73 73 69 |..NTLDR is missi|
000001b0 6e 67 00 0d 0a 4e 54 4c 44 52 20 69 73 20 63 6f |ng...NTLDR is co|
000001c0 6d 70 72 65 73 73 65 64 00 0d 0a 50 72 65 73 73 |mpressed...Press|
000001d0 20 43 74 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f | Ctrl+Alt+Del to|
000001e0 20 72 65 73 74 61 72 74 0d 0a 00 00 00 00 00 00 | restart........|
000001f0 00 00 00 00 00 00 00 00 83 a0 b3 c9 00 00 55 aa |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdb6
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 3f 00 00 00 |........?...?...|
00000020 00 00 00 00 80 00 80 00 31 d3 9f 1b 00 00 00 00 |........1.......|
00000030 03 00 00 00 00 00 00 00 33 fd b9 01 00 00 00 00 |........3.......|
00000040 f6 00 00 00 01 00 00 00 f0 31 e1 92 0f 88 cb 01 |.........1......|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb b8 c0 07 |.....3.....|....|
00000060 8e d8 e8 16 00 b8 00 0d 8e c0 33 db c6 06 0e 00 |..........3.....|
00000070 10 e8 53 00 68 00 0d 68 6a 02 cb 8a 16 24 00 b4 |..S.h..hj....$..|
00000080 08 cd 13 73 05 b9 ff ff 8a f1 66 0f b6 c6 40 66 |...s......f...@f|
00000090 0f b6 d1 80 e2 3f f7 e2 86 cd c0 ed 06 41 66 0f |.....?.......Af.|
000000a0 b7 c9 66 f7 e1 66 a3 20 00 c3 b4 41 bb aa 55 8a |..f..f. ...A..U.|
000000b0 16 24 00 cd 13 72 0f 81 fb 55 aa 75 09 f6 c1 01 |.$...r...U.u....|
000000c0 74 04 fe 06 14 00 c3 66 60 1e 06 66 a1 10 00 66 |t......f`..f...f|
000000d0 03 06 1c 00 66 3b 06 20 00 0f 82 3a 00 1e 66 6a |....f;. ...:..fj|
000000e0 00 66 50 06 53 66 68 10 00 01 00 80 3e 14 00 00 |.fP.Sfh.....>...|
000000f0 0f 85 0c 00 e8 b3 ff 80 3e 14 00 00 0f 84 61 00 |........>.....a.|
00000100 b4 42 8a 16 24 00 16 1f 8b f4 cd 13 66 58 5b 07 |.B..$.......fX[.|
00000110 66 58 66 58 1f eb 2d 66 33 d2 66 0f b7 0e 18 00 |fXfX..-f3.f.....|
00000120 66 f7 f1 fe c2 8a ca 66 8b d0 66 c1 ea 10 f7 36 |f......f..f....6|
00000130 1a 00 86 d6 8a 16 24 00 8a e8 c0 e4 06 0a cc b8 |......$.........|
00000140 01 02 cd 13 0f 82 19 00 8c c0 05 20 00 8e c0 66 |........... ...f|
00000150 ff 06 10 00 ff 0e 0e 00 0f 85 6f ff 07 1f 66 61 |..........o...fa|
00000160 c3 a0 f8 01 e8 09 00 a0 fb 01 e8 03 00 fb eb fe |................|
00000170 b4 01 8b f0 ac 3c 00 74 09 b4 0e bb 07 00 cd 10 |.....<.t........|
00000180 eb f2 c3 0d 0a 41 20 64 69 73 6b 20 72 65 61 64 |.....A disk read|
00000190 20 65 72 72 6f 72 20 6f 63 63 75 72 72 65 64 00 | error occurred.|
000001a0 0d 0a 4e 54 4c 44 52 20 69 73 20 6d 69 73 73 69 |..NTLDR is missi|
000001b0 6e 67 00 0d 0a 4e 54 4c 44 52 20 69 73 20 63 6f |ng...NTLDR is co|
000001c0 6d 70 72 65 73 73 65 64 00 0d 0a 50 72 65 73 73 |mpressed...Press|
000001d0 20 43 74 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f | Ctrl+Alt+Del to|
000001e0 20 72 65 73 74 61 72 74 0d 0a 00 00 00 00 00 00 | restart........|
000001f0 00 00 00 00 00 00 00 00 83 a0 b3 c9 00 00 55 aa |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdb7
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 3f 00 00 00 |........?...?...|
00000020 00 00 00 00 80 00 80 00 85 b8 72 0f 00 00 00 00 |..........r.....|
00000030 03 00 00 00 00 00 00 00 88 2b f7 00 00 00 00 00 |.........+......|
00000040 f6 00 00 00 01 00 00 00 c0 e2 75 a6 ad 93 cb 01 |..........u.....|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb b8 c0 07 |.....3.....|....|
00000060 8e d8 e8 16 00 b8 00 0d 8e c0 33 db c6 06 0e 00 |..........3.....|
00000070 10 e8 53 00 68 00 0d 68 6a 02 cb 8a 16 24 00 b4 |..S.h..hj....$..|
00000080 08 cd 13 73 05 b9 ff ff 8a f1 66 0f b6 c6 40 66 |...s......f...@f|
00000090 0f b6 d1 80 e2 3f f7 e2 86 cd c0 ed 06 41 66 0f |.....?.......Af.|
000000a0 b7 c9 66 f7 e1 66 a3 20 00 c3 b4 41 bb aa 55 8a |..f..f. ...A..U.|
000000b0 16 24 00 cd 13 72 0f 81 fb 55 aa 75 09 f6 c1 01 |.$...r...U.u....|
000000c0 74 04 fe 06 14 00 c3 66 60 1e 06 66 a1 10 00 66 |t......f`..f...f|
000000d0 03 06 1c 00 66 3b 06 20 00 0f 82 3a 00 1e 66 6a |....f;. ...:..fj|
000000e0 00 66 50 06 53 66 68 10 00 01 00 80 3e 14 00 00 |.fP.Sfh.....>...|
000000f0 0f 85 0c 00 e8 b3 ff 80 3e 14 00 00 0f 84 61 00 |........>.....a.|
00000100 b4 42 8a 16 24 00 16 1f 8b f4 cd 13 66 58 5b 07 |.B..$.......fX[.|
00000110 66 58 66 58 1f eb 2d 66 33 d2 66 0f b7 0e 18 00 |fXfX..-f3.f.....|
00000120 66 f7 f1 fe c2 8a ca 66 8b d0 66 c1 ea 10 f7 36 |f......f..f....6|
00000130 1a 00 86 d6 8a 16 24 00 8a e8 c0 e4 06 0a cc b8 |......$.........|
00000140 01 02 cd 13 0f 82 19 00 8c c0 05 20 00 8e c0 66 |........... ...f|
00000150 ff 06 10 00 ff 0e 0e 00 0f 85 6f ff 07 1f 66 61 |..........o...fa|
00000160 c3 a0 f8 01 e8 09 00 a0 fb 01 e8 03 00 fb eb fe |................|
00000170 b4 01 8b f0 ac 3c 00 74 09 b4 0e bb 07 00 cd 10 |.....<.t........|
00000180 eb f2 c3 0d 0a 41 20 64 69 73 6b 20 72 65 61 64 |.....A disk read|
00000190 20 65 72 72 6f 72 20 6f 63 63 75 72 72 65 64 00 | error occurred.|
000001a0 0d 0a 4e 54 4c 44 52 20 69 73 20 6d 69 73 73 69 |..NTLDR is missi|
000001b0 6e 67 00 0d 0a 4e 54 4c 44 52 20 69 73 20 63 6f |ng...NTLDR is co|
000001c0 6d 70 72 65 73 73 65 64 00 0d 0a 50 72 65 73 73 |mpressed...Press|
000001d0 20 43 74 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f | Ctrl+Alt+Del to|
000001e0 20 72 65 73 74 61 72 74 0d 0a 00 00 00 00 00 00 | restart........|
000001f0 00 00 00 00 00 00 00 00 83 a0 b3 c9 00 00 55 aa |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdc1
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 08 00 00 |........?.......|
00000020 00 00 00 00 80 00 80 00 ff 57 38 3a 00 00 00 00 |.........W8:....|
00000030 00 00 0c 00 00 00 00 00 5a 1d 0c 00 00 00 00 00 |........Z.......|
00000040 f6 00 00 00 01 00 00 00 07 ff 14 28 22 15 28 1a |...........(".(.|
00000050 99 4c 11 ed fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.L...3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 d2 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 40 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |@.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 70 0e 16 68 09 00 66 53 66 53 66 |h...hp..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a e9 6a 01 |U...h..fa.....j.|
00000110 90 90 66 60 1e 06 66 a1 11 00 66 03 06 1c 00 1e |..f`..f...f.....|
00000120 66 68 00 00 00 00 66 50 06 53 68 01 00 68 10 00 |fh....fP.Sh..h..|
00000130 b4 42 8a 16 0e 00 16 1f 8b f4 cd 13 66 59 5b 5a |.B..........fY[Z|
00000140 66 59 66 59 1f 0f 82 16 00 66 ff 06 11 00 03 16 |fYfY.....f......|
00000150 0f 00 8e c2 ff 0e 16 00 75 bc 07 1f 66 61 c3 a0 |........u...fa..|
00000160 f8 01 e8 08 00 a0 fb 01 e8 02 00 eb fe b4 01 8b |................|
00000170 f0 ac 3c 00 74 09 b4 0e bb 07 00 cd 10 eb f2 c3 |..<.t...........|
00000180 0d 0a 41 20 64 69 73 6b 20 72 65 61 64 20 65 72 |..A disk read er|
00000190 72 6f 72 20 6f 63 63 75 72 72 65 64 00 0d 0a 42 |ror occurred...B|
000001a0 4f 4f 54 4d 47 52 20 69 73 20 6d 69 73 73 69 6e |OOTMGR is missin|
000001b0 67 00 0d 0a 42 4f 4f 54 4d 47 52 20 69 73 20 63 |g...BOOTMGR is c|
000001c0 6f 6d 70 72 65 73 73 65 64 00 0d 0a 50 72 65 73 |ompressed...Pres|
000001d0 73 20 43 74 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 |s Ctrl+Alt+Del t|
000001e0 6f 20 72 65 73 74 61 72 74 0d 0a 00 00 00 00 00 |o restart.......|
000001f0 00 00 00 00 00 00 00 00 80 9d b2 ca 00 00 55 aa |..............U.|
00000200
Partition 2 does not start on physical sector boundary.

=================== df -Th:

Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 395M 6.3M 389M 2% /run
/dev/sr0 iso9660 708M 708M 0 100% /cdrom
/dev/loop0 squashfs 630M 630M 0 100% /rofs
/cow overlay 2.0G 10M 2.0G 1% /
tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
tmpfs tmpfs 2.0G 104K 2.0G 1% /tmp
tmpfs tmpfs 395M 4.0K 395M 1% /run/user/999
/dev/sda1 fuseblk 632G 240G 392G 38% /mnt/boot-sav/sda1
/dev/sdb5 fuseblk 122G 89G 33G 74% /mnt/boot-sav/sdb5
/dev/sdb6 fuseblk 221G 176G 46G 80% /mnt/boot-sav/sdb6
/dev/sdb7 fuseblk 124G 88G 37G 71% /mnt/boot-sav/sdb7
/dev/sdc1 fuseblk 466G 415G 52G 89% /mnt/boot-sav/sdc1

=================== fdisk -l:
Disk /dev/loop0: 629.3 MiB, 659873792 bytes, 1288816 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xe515b4d6

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 1324061234 1324059187 631.4G 7 HPFS/NTFS/exFAT
/dev/sda2 1324062718 1953523711 629460994 300.2G 5 Extended



Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0008d2ad

Device Boot Start End Sectors Size Id Type
/dev/sdb1 16126 976768064 976751939 465.8G f W95 Ext'd (LBA)
/dev/sdb5 16128 254117026 254100899 121.2G 7 HPFS/NTFS/exFAT
/dev/sdb6 254132298 717591419 463459122 221G 7 HPFS/NTFS/exFAT
/dev/sdb7 * 717591483 976768064 259176582 123.6G 7 HPFS/NTFS/exFAT


Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xbf9bbf9b

Device Boot Start End Sectors Size Id Type
/dev/sdc1 * 2048 976773119 976771072 465.8G 7 HPFS/NTFS/exFAT


Disk /dev/zram0: 987 MiB, 1034985472 bytes, 252682 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram1: 987 MiB, 1034985472 bytes, 252682 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes




=================== Suggested repair
The default repair of the Boot-Repair utility would restore the [(generic mbr)] MBR in sda, and make it boot on sda1.
Additional repair would be performed: unhide-bootmenu-10s fix-windows-boot


=================== User settings
The settings chosen by the user will not act on the boot.
oldfred
November 30th, 2018, 04:06 PM
Please use code tags for long text or terminal output.
Easy to add with Forum's advanced editor and # icon.

You show no Linux partitions, and have a partition error on sda.

Major Windows updates in BIOS mode including Windows 7, 8 or 10 all have a "feature" (really bug). They delete from the partition table any Linux partitions. It is because they do not see them, so do not write them back into partition table. Partition is still there and usually can be restored with testdisk or parted rescue. But better if you have backup of partition table or output of details of partition sizes.

backup partition table before any changes, so you can get back to current if changes not correct
sudo sfdisk -d /dev/sda > PT_sda.txt
So you know sectors:
sudo parted /dev/sda unit s print

All these are essentially the same.

Windows 7 to Windows 10 MBR partition missing
http://ubuntuforums.org/showthread.php?t=2288988
http://ubuntuforums.org/showthread.php?t=2290190
http://ubuntuforums.org/showthread.php?t=2292545
Use parted rescue to restore missing partition details in post #22
http://ubuntuforums.org/showthread.php?t=1775331
https://www.gnu.org/software/parted/manual/parted.html#rescue
http://gparted.sourceforge.net/faq.php/#faq-22
Parted rescue seems easier than testdisk
https://askubuntu.com/questions/665445/upgraded-to-windows-10-on-dual-boot-and-cant-boot-to-ubuntu-partition

https://help.ubuntu.com/community/DataRecovery
http://www.cgsecurity.org/wiki/TestDisk
repairs including testdisk info & links
https://help.ubuntu.com/community/DataRecovery#Lost_Partition
Screenshots of several of the recovery tools
http://www.howtogeek.com/howto/15761/recover-data-like-a-forensics-expert-using-an-ubuntu-live-cd/
josephconvert
December 1st, 2018, 10:01 AM
Thank you for your help. Since I have a working Windows 7 I have decided to use Ubuntu in VirtualBox rather than reinstall it using dual boot. Dual Boot seems to cause a lot of problems when it gows wrong, so I feel it is better not to use it at all. The fixes you suggest I make are too complicated for me to undertake for the end I am seeking. But thank you for the trouble you have taken.