Home folders are missing after upgrade.

[tnc]

Hello and Thanks for helping with our little problem.

This evening I went through the upgrade process to 10.04. The entire process went well until reboot time. At that point fsck was run and stopped after checking the first physical hard drive. After some time I skipped (s). When I tried to log in, warning messages informed me that Nautilus could not access it's folders in our home folder. ls /home/ brings up nothing, nada zilch. Some poking around confirms that the drive is there but Ubuntu seems unaware of it.

Help?

The configuration:
Physical hd #1 is: sda a 40Gb hard drive with windows and Ubuntu / and swap.

Physical hd #2 is: sdb a 120Gb hard drive with our /home partitions.

Seems Ubuntu is simply not detecting the drive?

Would appreciate some guidance as I am stumped.
Tim

[pastalavista]

Please post the out put from terminal of
sudo fdisk -l && cat /etc/fstab

note: fdisk -l = lowercase L

[MacinViLLe]

When you say upgrade, did you install the Ubuntu 10.04 while Ubuntu 9 was running, or did you reformat your hard drive and replaced the old Ubuntu (boot from CD)?

[tnc]

Hiya. Thanks for the quick responses!

Terminal commands output are rather garbled due to a very small term window. I wrote the response out as best I could on note paper to type in here. :) please bear with me....

fdisk -l:
sda 1,2,3,5 good.
sdb 2,3,4 have a question mark; then "this doesn't look like a partition trace. Wrong device? Partition table entries are not in disk order"

cat fstab:
/was on sda3 at install
proc /proc proc default 0 0
-ro 0 ext4 errors=remount
/home was sdb1 during install
swap was on sdb1 during install
/dev/scdo /media/cdrom0 UDF, iso 9660, user, noauto, exec UTF8


I upgraded via the update manager.

Thanks.
Tim

[tnc]

Hello again.
So, I downloaded and ran the live CD. Much better way to do things.
I then reran the requested commands adn also downloaded and ran the bootinfoscript, the output of which is below.


Output of sudo fdisk -l && cat /etc/fstab:

Disk /dev/sda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd6ef6616

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2433 19543041 7 HPFS/NTFS
/dev/sda2 2434 2615 1461915 5 Extended
/dev/sda3 2616 4865 18073125 83 Linux
/dev/sda5 2434 2615 1461883+ 82 Linux swap / Solaris

Disk /dev/sdb: 120.0 GB, 120034123776 bytes
256 heads, 63 sectors/track, 14536 cylinders
Units = cylinders of 16128 * 512 = 8257536 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xffffffff

This doesn't look like a partition table
Probably you selected the wrong device.

Device Boot Start End Blocks Id System
/dev/sdb1 ? 266306 532611 2147483647+ ff BBT
/dev/sdb2 ? 266306 532611 2147483647+ ff BBT
/dev/sdb3 ? 266306 532611 2147483647+ ff BBT
/dev/sdb4 ? 199941 214616 118341932+ ff BBT

Partition table entries are not in disk order
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sda5 swap swap defaults 0 0





Output of the bootinfoscript:



Boot Info Script 0.55 dated February 15th, 2010

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

=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #3 for /boot/grub.
=> Grub 2 is installed in the MBR of /dev/sdb and looks at sector 42789527 of
the same hard drive for core.img, but core.img can not be found at this
location.

sda1: __________________________________________________ _______________________

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

sda2: __________________________________________________ _______________________

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

sda5: __________________________________________________ _______________________

File system: swap
Boot sector type: -
Boot sector info:

sda3: __________________________________________________ _______________________

File system: ext4
Boot sector type: Grub 2
Boot sector info: Grub 2 is installed in the boot sector of sda3 and
looks at sector 43087591 of the same hard drive for
core.img, but core.img can not be found at this
location.
Operating System: Ubuntu 10.04.1 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sdb1: __________________________________________________ _______________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''

sdb2: __________________________________________________ _______________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''
mount: unknown filesystem type ''

sdb3: __________________________________________________ _______________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''
mount: unknown filesystem type ''
mount: unknown filesystem type ''

sdb4: __________________________________________________ _______________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''
mount: unknown filesystem type ''
mount: unknown filesystem type ''
mount: unknown filesystem type ''

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

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders, total 78165360 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 63 39,086,144 39,086,082 7 HPFS/NTFS
/dev/sda2 39,086,145 42,009,974 2,923,830 5 Extended
/dev/sda5 39,086,208 42,009,974 2,923,767 82 Linux swap / Solaris
/dev/sda3 42,009,975 78,156,224 36,146,250 83 Linux


Drive: sdb ___________________ __________________________________________________ ___

Disk /dev/sdb: 120.0 GB, 120034123776 bytes
256 heads, 63 sectors/track, 14536 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sdb1 ? 4,294,967,295 8,589,934,589 4,294,967,295 ff BBT
/dev/sdb2 ? 4,294,967,295 8,589,934,589 4,294,967,295 ff BBT
/dev/sdb3 ? 4,294,967,295 8,589,934,589 4,294,967,295 ff BBT
/dev/sdb4 ? 3,224,633,343 3,461,317,207 236,683,865 ff BBT

/dev/sdb1 ends after the last sector of /dev/sdb
/dev/sdb2 ends after the last sector of /dev/sdb
/dev/sdb3 ends after the last sector of /dev/sdb
/dev/sdb4 ends after the last sector of /dev/sdb

blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/ramzswap0 swap
/dev/sda1 365C69905C694C25 ntfs
/dev/sda2: PTTYPE="dos"
/dev/sda3 2a8de8ab-097f-4da6-9c07-e80c5afd96dd ext4
/dev/sda5 7a45aee6-d74d-492d-8204-1da4eb33d67c swap
/dev/sda: PTTYPE="dos"
/dev/sdb: PTTYPE="bsd"
error: /dev/sdb1: No such file or directory
error: /dev/sdb2: No such file or directory
error: /dev/sdb3: No such file or directory
error: /dev/sdb4: No such file or directory

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sr0 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)


================================ sda1/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" /fastdetect /NoExecute=OptIn


=========================== sda3/boot/grub/grub.cfg: ===========================

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
set saved_entry=${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z ${boot_once} ]; then
saved_entry=${chosen}
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
linux /boot/vmlinuz-2.6.32-24-generic root=UUID=2a8de8ab-097f-4da6-9c07-e80c5afd96dd ro
initrd /boot/initrd.img-2.6.32-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
echo 'Loading Linux 2.6.32-24-generic ...'
linux /boot/vmlinuz-2.6.32-24-generic root=UUID=2a8de8ab-097f-4da6-9c07-e80c5afd96dd ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
linux /boot/vmlinuz-2.6.31-22-generic root=UUID=2a8de8ab-097f-4da6-9c07-e80c5afd96dd ro
initrd /boot/initrd.img-2.6.31-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
echo 'Loading Linux 2.6.31-22-generic ...'
linux /boot/vmlinuz-2.6.31-22-generic root=UUID=2a8de8ab-097f-4da6-9c07-e80c5afd96dd ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.31-22-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,3)'
search --no-floppy --fs-uuid --set 2a8de8ab-097f-4da6-9c07-e80c5afd96dd
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
insmod ntfs
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 365c69905c694c25
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

=============================== sda3/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sda3 during installation
UUID=2a8de8ab-097f-4da6-9c07-e80c5afd96dd / ext4 errors=remount-ro 0 1
# /home was on /dev/sdb1 during installation
UUID=64f5fcc7-41bd-405b-b808-5d3544332340 /home ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=7a45aee6-d74d-492d-8204-1da4eb33d67c none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0

=================== sda3: Location of files loaded by Grub: ===================


21.9GB: boot/grub/core.img
21.7GB: boot/grub/grub.cfg
29.4GB: boot/initrd.img-2.6.31-22-generic
29.5GB: boot/initrd.img-2.6.32-24-generic
26.4GB: boot/vmlinuz-2.6.31-22-generic
28.0GB: boot/vmlinuz-2.6.32-24-generic
29.5GB: initrd.img
29.4GB: initrd.img.old
28.0GB: vmlinuz
26.4GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sdb1


Unknown BootLoader on sdb2


Unknown BootLoader on sdb3


Unknown BootLoader on sdb4



=============================== StdErr Messages: ===============================

hexdump: /dev/sdb1: No such file or directory
hexdump: /dev/sdb1: No such file or directory
hexdump: /dev/sdb2: No such file or directory
hexdump: /dev/sdb2: No such file or directory
hexdump: /dev/sdb3: No such file or directory
hexdump: /dev/sdb3: No such file or directory
hexdump: /dev/sdb4: No such file or directory
hexdump: /dev/sdb4: No such file or directory



With appreciation for your assistance,
Tim

[pastalavista]

Run fsck (from the live CD) on /dev/sdb and reboot.
sudo umount /dev/sdb && fsck -r /dev/sdb hope it helps...

[tnc]

Good Morning.

Thank-you for your continued input pastalavista.

Ran the commands you suggested, the output of which is below. Also ran a utility called testdisk. It suggested the structure is ok but was unable to make headway either.

If may be worth noting that this disk was probably using the ext4 filesystem?

And so, casting about for the next direction in which to head....

Tim.


ubuntu@ubuntu:~$ sudo umount /dev/sdb && fsck -r /dev/sdb
umount: /dev/sdb: not mounted
ubuntu@ubuntu:~$ sudo umount /dev/sdb
umount: /dev/sdb: not mounted
ubuntu@ubuntu:~$ sudo fsck -r /dev/sdb
fsck from util-linux-ng 2.17.2
e2fsck 1.41.11 (14-Mar-2010)
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block while trying to open /dev/sdb

The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>

ubuntu@ubuntu:~$ sudo e2fsck -r /dev/sdb
e2fsck 1.41.11 (14-Mar-2010)
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdb

The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>

ubuntu@ubuntu:~$

[tnc]

So, how does one "repair" a superblock I wonder....

[tnc]

So, going on the idea that the superblock is corrupt, I have followed the instructions from this site:

http://linuxexpresso.wordpress.com/2010/03/31/repair-a-broken-ext4-superblock-in-ubuntu/


Still no joy. Complains about the bad superblock and does nothing further.....

Casting about for which direction to head next....

Running on liveCD only gets old after a while...

Tim

[tnc]

So, quick update....

Installed a new hard drive to replace the failed one until such time as I acquire the knowledge to retrieve at least the data if not the whole drive. Then a fresh install of 10.04 LTS. Which promptly complained about bad sectors somewhere.... WTF.

Working now.

so, the old hard drive should be accessible if I put it in the slave position on the secondary IDE cable, right?

Anyone? Anyone? Hello?

:D

Tim

[tnc]

Bit of an echo around here....

[tnc]

So, here is a big 'ol whackin BUMP!

Suggestions? Input?

Thanks
Tim