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Thread: Boot (mbr\grub) problem Ub 12.04

  1. #1
    Join Date
    May 2007
    Location
    Venezia (Italy)
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    34
    Distro
    Ubuntu

    Boot (mbr\grub) problem Ub 12.04

    Hi all, I have a Samsung 700z3a laptop.
    This laptop has a 8Gb SSD (sdb) and a 750Gb HDD (sda)

    I was used to install on sda (SSD) the root folder (/) and on my HDD (sda) the /home, /var and swap.

    I did it with 11.10 and one time with 12.04. It worked awesome, very fast and nice. After some random test with configuration (with kernel and other but not boot) and more I had to reinstall my OS but this time if I install as usual I am not able to make it work. The laptop doesn't see any bootable device.
    I spend some time and I realized I can make Ubuntu work only if I install all the system on "/dev/sda" with the standard partition. If I try to install with my partion definitio won't work.

    What could it be? I have no idea! It seems like grub doesn't work but the installation is able to make it work if i don't touch the partition by myaself.

    Thanks!
    Ubuntu user since 29-OCT-2008 With Ubuntu 8.10

  2. #2
    Join Date
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    Chicago Suburbs
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    Ubuntu 12.04 Precise Pangolin

    Re: Boot (mbr\grub) problem Ub 12.04

    Is there some reason for a separate /var?

    This is an older bug, not sure it applies.
    https://bugs.launchpad.net/ubuntu/+s...us/+bug/811441
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  3. #3
    Join Date
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    Re: Boot (mbr\grub) problem Ub 12.04

    Sorry for the late answer lot of work recently!

    So I wanted to have /var on a bigger HD because when I create KVM virtual machines usually the system create my images on /var/...

    It's not a big deal I can create the images on other paths, anyway today I tried to put / on SDB (SSD8gb) and /home and swap on SDA (hdd750gb)

    Nothing changed, no startup, I had to install again everything with basic configuration....

    I can have a partition on sdb, but i must create it AFTER installation or maybe (never tried) have it already when I install.

    Somehow I think it's something about grub and mbr but i dont' know what to search....

    thanks
    Ubuntu user since 29-OCT-2008 With Ubuntu 8.10

  4. #4
    Join Date
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    Ubuntu 12.04 Precise Pangolin

    Re: Boot (mbr\grub) problem Ub 12.04

    Did grub install to the other drive and that is where it want to boot from?

    Post link to the report from BootInfo:

    Boot Repair:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or Create BootInfo report & post the link to a run of boot info script so we can see your exact configuration.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  5. #5
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    Re: Boot (mbr\grub) problem Ub 12.04

    I think the problem somehow it's UEFI, when I start BootRepair to fix standard issues it told me i have UEFI on and I should create a fat32 partition to make it work, this is something i really don't want! UEFI is disabled on my bios now (I tried one time).
    Now on my boot list I have ubuntu and I don't know how fix it.
    I found this topic: http://ubuntuforums.org/showthread.php?t=1935699
    This is more or less my problem on the same pc, but I am unable to solve it, I would like to delete TGP and ubuntu from my boot menu... But I am not able to!

    (writing from a LIVE CD session)
    Ubuntu user since 29-OCT-2008 With Ubuntu 8.10

  6. #6
    Join Date
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    Ubuntu 12.04 Precise Pangolin

    Re: Boot (mbr\grub) problem Ub 12.04

    Post link to BootInfo report that Boot-Repair can create. Then we can see your entire configuration and perhaps suggest something.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  7. #7
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    Re: Boot (mbr\grub) problem Ub 12.04

    I'm gonna try this: http://ubuntuforums.org/showthread.php?t=1958383

    I'm a bit confuse about UEFI, on my bios i can say enable\disable. But seems like one time you say yes you cannot come back, even when you reset the bios to default settings...

    Thanks

    Code:
                Boot Info Script 0.61-git-patched      [23 April 2012]
    
    
    ============================= Boot Info Summary: ===============================
    
     => Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of 
        the same hard drive for core.img. core.img is at this location and looks 
        for (,msdos1)/boot/grub on this drive.
     => 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 (,msdos1)/boot/grub on this drive.
     => Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdc.
     => Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdd.
    
    sda1: __________________________________________________________________________
    
        File system:       ext4
        Boot sector type:  -
        Boot sector info: 
        Operating System:  
        Boot files:        
    
    sda2: __________________________________________________________________________
    
        File system:       Extended Partition
        Boot sector type:  -
        Boot sector info: 
    
    sda5: __________________________________________________________________________
    
        File system:       
        Boot sector type:  -
        Boot sector info: 
        Mounting failed:   mount: unknown filesystem type ''
    
    sdb1: __________________________________________________________________________
    
        File system:       ext4
        Boot sector type:  -
        Boot sector info: 
        Operating System:  Ubuntu 12.04 LTS
        Boot files:        /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
    
    sdc1: __________________________________________________________________________
    
        File system:       vfat
        Boot sector type:  SYSLINUX 4.05 20120131
        Boot sector info:  Syslinux looks at sector 1459488 of /dev/sdc1 for its 
                           second stage. SYSLINUX is installed in the  directory. 
                           According to the info in the boot sector, sdc1 starts 
                           at sector 0. But according to the info from fdisk, 
                           sdc1 starts at sector 62.
        Operating System:  
        Boot files:        /boot/grub/grub.cfg /syslinux/syslinux.cfg 
                           /efi/boot/bootx64.efi /ldlinux.sys
    
    sdd1: __________________________________________________________________________
    
        File system:       ntfs
        Boot sector type:  Windows Vista/7: NTFS
        Boot sector info:  No errors found in the Boot Parameter Block.
        Operating System:  
        Boot files:        
    
    ============================ Drive/Partition Info: =============================
    
    Drive: sda _____________________________________________________________________
    
    Disk /dev/sda: 750.2 GB, 750156374016 bytes
    255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sda1               2,048 1,445,617,663 1,445,615,616  83 Linux
    /dev/sda2       1,445,619,710 1,465,147,391    19,527,682   5 Extended
    /dev/sda5       1,445,619,712 1,465,147,391    19,527,680  82 Linux swap / Solaris
    
    
    Drive: sdb _____________________________________________________________________
    
    Disk /dev/sdb: 8012 MB, 8012390400 bytes
    24 heads, 9 sectors/track, 72450 cylinders, total 15649200 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sdb1    *          2,048    15,648,767    15,646,720  83 Linux
    
    
    Drive: sdc _____________________________________________________________________
    
    Disk /dev/sdc: 7927 MB, 7927234560 bytes
    244 heads, 62 sectors/track, 1023 cylinders, total 15482880 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sdc1    *             62    15,475,943    15,475,882   c W95 FAT32 (LBA)
    
    
    Drive: sdd _____________________________________________________________________
    
    Disk /dev/sdd: 4005 MB, 4005527552 bytes
    124 heads, 62 sectors/track, 1017 cylinders, total 7823296 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sdd1    *             62     7,818,695     7,818,634   c W95 FAT32 (LBA)
    
    
    "blkid" output: ________________________________________________________________
    
    Device           UUID                                   TYPE       LABEL
    
    /dev/loop0                                              squashfs   
    /dev/sda1        07f7052f-5047-468b-a404-dfff5fa2edff   ext4       
    /dev/sdb1        f88c935f-4b90-445e-a764-1ee1476fb281   ext4       
    /dev/sdc1        3804-2FB1                              vfat       
    /dev/sdd1        34664B5B69CE57E6                       ntfs       x
    
    ================================ Mount points: =================================
    
    Device           Mount_Point              Type       Options
    
    /dev/loop0       /rofs                    squashfs   (ro,noatime)
    /dev/sdc1        /cdrom                   vfat       (ro,noatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
    /dev/sdd1        /media/x                 fuseblk    (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
    
    
    =========================== sdb1/boot/grub/grub.cfg: ===========================
    
    --------------------------------------------------------------------------------
    #
    # DO NOT EDIT THIS FILE
    #
    # It is automatically generated by grub-mkconfig using templates
    # from /etc/grub.d and settings from /etc/default/grub
    #
    
    ### BEGIN /etc/grub.d/00_header ###
    if [ -s $prefix/grubenv ]; then
      set have_grubenv=true
      load_env
    fi
    set default="0"
    if [ "${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
    }
    
    function load_video {
      insmod vbe
      insmod vga
      insmod video_bochs
      insmod video_cirrus
    }
    
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos1)'
    search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
    if loadfont /usr/share/grub/unicode.pf2 ; then
      set gfxmode=auto
      load_video
      insmod gfxterm
      insmod part_msdos
      insmod ext2
      set root='(hd1,msdos1)'
      search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
      set locale_dir=($root)/boot/grub/locale
      set lang=en_US
      insmod gettext
    fi
    terminal_output gfxterm
    if [ "${recordfail}" = 1 ]; then
      set timeout=10
    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
    if background_color 44,0,30; then
      clear
    fi
    ### END /etc/grub.d/05_debian_theme ###
    
    ### BEGIN /etc/grub.d/10_linux ###
    function gfxmode {
    	set gfxpayload="$1"
    	if [ "$1" = "keep" ]; then
    		set vt_handoff=vt.handoff=7
    	else
    		set vt_handoff=
    	fi
    }
    if [ ${recordfail} != 1 ]; then
      if [ -e ${prefix}/gfxblacklist.txt ]; then
        if hwmatch ${prefix}/gfxblacklist.txt 3; then
          if [ ${match} = 0 ]; then
            set linux_gfx_mode=keep
          else
            set linux_gfx_mode=text
          fi
        else
          set linux_gfx_mode=text
        fi
      else
        set linux_gfx_mode=keep
      fi
    else
      set linux_gfx_mode=text
    fi
    export linux_gfx_mode
    if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    	recordfail
    	gfxmode $linux_gfx_mode
    	insmod gzio
    	insmod part_msdos
    	insmod ext2
    	set root='(hd1,msdos1)'
    	search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
    	linux	/boot/vmlinuz-3.2.0-23-generic root=UUID=f88c935f-4b90-445e-a764-1ee1476fb281 ro   quiet splash $vt_handoff
    	initrd	/boot/initrd.img-3.2.0-23-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    	recordfail
    	insmod gzio
    	insmod part_msdos
    	insmod ext2
    	set root='(hd1,msdos1)'
    	search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
    	echo	'Loading Linux 3.2.0-23-generic ...'
    	linux	/boot/vmlinuz-3.2.0-23-generic root=UUID=f88c935f-4b90-445e-a764-1ee1476fb281 ro recovery nomodeset 
    	echo	'Loading initial ramdisk ...'
    	initrd	/boot/initrd.img-3.2.0-23-generic
    }
    ### END /etc/grub.d/10_linux ###
    
    ### BEGIN /etc/grub.d/20_linux_xen ###
    ### END /etc/grub.d/20_linux_xen ###
    
    ### BEGIN /etc/grub.d/20_memtest86+ ###
    menuentry "Memory test (memtest86+)" {
    	insmod part_msdos
    	insmod ext2
    	set root='(hd1,msdos1)'
    	search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
    	linux16	/boot/memtest86+.bin
    }
    menuentry "Memory test (memtest86+, serial console 115200)" {
    	insmod part_msdos
    	insmod ext2
    	set root='(hd1,msdos1)'
    	search --no-floppy --fs-uuid --set=root f88c935f-4b90-445e-a764-1ee1476fb281
    	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
    }
    ### END /etc/grub.d/20_memtest86+ ###
    
    ### BEGIN /etc/grub.d/30_os-prober ###
    if [ "x${timeout}" != "x-1" ]; then
      if keystatus; then
        if keystatus --shift; then
          set timeout=10
        else
          set timeout=10
        fi
      else
        if sleep --interruptible 3 ; then
          set timeout=10
        fi
      fi
    fi
    ### 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 ###
    
    ### BEGIN /etc/grub.d/41_custom ###
    if [ -f  $prefix/custom.cfg ]; then
      source $prefix/custom.cfg;
    fi
    ### END /etc/grub.d/41_custom ###
    --------------------------------------------------------------------------------
    
    =============================== sdb1/etc/fstab: ================================
    
    --------------------------------------------------------------------------------
    # /etc/fstab: static file system information.
    #
    # Use 'blkid' 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    nodev,noexec,nosuid 0       0
    # / was on /dev/sdb1 during installation
    UUID=f88c935f-4b90-445e-a764-1ee1476fb281 /               ext4    errors=remount-ro 0       1
    # /home was on /dev/sda1 during installation
    UUID=07f7052f-5047-468b-a404-dfff5fa2edff /home           ext4    defaults        0       2
    # swap was on /dev/sda5 during installation
    #UUID=2072ebbf-f288-4a23-bca5-eb2eca8fda34 none            swap    sw              0       0
    /dev/mapper/cryptswap1 none swap sw 0 0
    --------------------------------------------------------------------------------
    
    =================== sdb1: Location of files loaded by Grub: ====================
    
               GiB - GB             File                                 Fragment(s)
    
       2.336246490 = 2.508525568    boot/grub/core.img                             1
       0.144233704 = 0.154869760    boot/grub/grub.cfg                             1
       0.797851562 = 0.856686592    boot/initrd.img-3.2.0-23-generic               2
       0.682926178 = 0.733286400    boot/vmlinuz-3.2.0-23-generic                  1
       0.797851562 = 0.856686592    initrd.img                                     2
       0.682926178 = 0.733286400    vmlinuz                                        1
    
    =========================== sdc1/boot/grub/grub.cfg: ===========================
    
    --------------------------------------------------------------------------------
    
    if loadfont /boot/grub/font.pf2 ; then
    	set gfxmode=auto
    	insmod efi_gop
    	insmod efi_uga
    	insmod gfxterm
    	terminal_output gfxterm
    fi
    
    set menu_color_normal=white/black
    set menu_color_highlight=black/light-gray
    
    menuentry "Try Ubuntu without installing" {
    	set gfxpayload=keep
    	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
    	initrd	/casper/initrd.lz
    }
    menuentry "Install Ubuntu" {
    	set gfxpayload=keep
    	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
    	initrd	/casper/initrd.lz
    }
    menuentry "Check disc for defects" {
    	set gfxpayload=keep
    	linux	/casper/vmlinuz  boot=casper integrity-check quiet splash --
    	initrd	/casper/initrd.lz
    }
    --------------------------------------------------------------------------------
    
    ========================= sdc1/syslinux/syslinux.cfg: ==========================
    
    --------------------------------------------------------------------------------
    # D-I config version 2.0
    include menu.cfg
    default vesamenu.c32
    prompt 0
    timeout 50
    ui gfxboot bootlogo
    --------------------------------------------------------------------------------
    
    =================== sdc1: Location of files loaded by Grub: ====================
    
               GiB - GB             File                                 Fragment(s)
    
                ?? = ??             boot/grub/grub.cfg                             1
    
    ================= sdc1: Location of files loaded by Syslinux: ==================
    
               GiB - GB             File                                 Fragment(s)
    
                ?? = ??             ldlinux.sys                                    1
                ?? = ??             syslinux/chain.c32                             1
                ?? = ??             syslinux/gfxboot.c32                           1
                ?? = ??             syslinux/syslinux.cfg                          1
                ?? = ??             syslinux/vesamenu.c32                          1
    
    ============== sdc1: Version of COM32(R) files used by Syslinux: ===============
    
     syslinux/chain.c32                 :  COM32R module (v4.xx)
     syslinux/gfxboot.c32               :  COM32R module (v4.xx)
     syslinux/vesamenu.c32              :  COM32R module (v4.xx)
    
    
    ADDITIONAL INFORMATION :
    =================== log of boot-repair 2012-05-06__17h04 ===================
    boot-repair version : 3.18-0ppa9~precise
    boot-sav version : 3.18-0ppa19~precise
    glade2script version : 0.3.2.1-0ppa7~precise
    internet: connected
    boot-repair is executed in live-session (Ubuntu 12.04 LTS , precise , Ubuntu , x86_64)
    
    =================== OSPROBER:
    /dev/sdb1:Ubuntu 12.04 LTS (12.04):Ubuntu:linux
    
    =================== BLKID:
    /dev/loop0: TYPE="squashfs"
    /dev/sda1: UUID="07f7052f-5047-468b-a404-dfff5fa2edff" TYPE="ext4"
    /dev/sdb1: UUID="f88c935f-4b90-445e-a764-1ee1476fb281" TYPE="ext4"
    /dev/sdc1: UUID="3804-2FB1" TYPE="vfat"
    /dev/sdd1: LABEL="x" UUID="34664B5B69CE57E6" TYPE="ntfs"
    
    
    1 disks with OS, 1 OS : 1 Linux, 0 MacOS, 0 Windows, 0 unknown type OS.
    
    Warning: extended partition does not start at a cylinder boundary.
    DOS and Linux will interpret the contents differently.
    
    
    =================== /mnt/boot-sav/sdb1/etc/default/grub :
    
    # If you change this file, run 'update-grub' afterwards to update
    # /boot/grub/grub.cfg.
    # For full documentation of the options in this file, see:
    #   info -f grub -n 'Simple configuration'
    
    GRUB_DEFAULT=0
    #GRUB_HIDDEN_TIMEOUT=0
    GRUB_HIDDEN_TIMEOUT_QUIET=true
    GRUB_TIMEOUT=10
    GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    GRUB_CMDLINE_LINUX=""
    
    # Uncomment to enable BadRAM filtering, modify to suit your needs
    # This works with Linux (no patch required) and with any kernel that obtains
    # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
    #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
    
    # Uncomment to disable graphical terminal (grub-pc only)
    #GRUB_TERMINAL=console
    
    # The resolution used on graphical terminal
    # note that you can use only modes which your graphic card supports via VBE
    # you can see them in real GRUB with the command `vbeinfo'
    #GRUB_GFXMODE=640x480
    
    # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
    #GRUB_DISABLE_LINUX_UUID=true
    
    # Uncomment to disable generation of recovery mode menu entries
    #GRUB_DISABLE_RECOVERY="true"
    
    # Uncomment to get a beep at grub start
    #GRUB_INIT_TUNE="480 440 1"
    
    
    
    
    =================== dmesg | grep EFI :
    [    0.000000] ACPI: UEFI 000000009afe9000 0003E (v01 SECCSD LH43STAR 00000002 PTL  00000002)
    [    0.000000] ACPI: UEFI 000000009afe8000 00042 (v01 PTL      COMBUF 00000001 PTL  00000001)
    [    0.000000] ACPI: UEFI 000000009afe5000 00256 (v01 SECCSD LH43STAR 00000002 PTL  00000002)
    [    4.022553] EFI Variables Facility v0.08 2004-May-17
    
    
    =================== PARTITIONS & DISKS:
    sda1	: sda,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not-on-gpt-disk,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	no-grldr,	no-b-bcd,	nopakmgr,	nogrubinstall,	/mnt/boot-sav/sda1.
    sdb1	: sdb,	not-sepboot,	grubenv-ok	grub2,	grub-pc,	update-grub,	64,	with-boot,	is-os,	not-on-gpt-disk,	fstab-without-efi,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	no-grldr,	no-b-bcd,	apt-get,	grub-install,	/mnt/boot-sav/sdb1.
    sdd1	: sdd,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not-on-gpt-disk,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	no-grldr,	no-b-bcd,	nopakmgr,	nogrubinstall,	/media/x.
    
    sda	: MSDos,	not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	2048 sectors * 512 bytes
    sdb	: MSDos,	not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	2048 sectors * 512 bytes
    sdd	: MSDos,	not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	62 sectors * 512 bytes
    
    =================== PARTED:
    
    Model: ATA Hitachi HTS72757 (scsi)
    Disk /dev/sda: 750GB
    Sector size (logical/physical): 512B/4096B
    Partition Table: msdos
    
    Number  Start   End    Size    Type      File system  Flags
    1      1049kB  740GB  740GB   primary   ext4
    2      740GB   750GB  9998MB  extended
    5      740GB   750GB  9998MB  logical
    
    
    Model: ATA SanDisk iSSD P4 (scsi)
    Disk /dev/sdb: 8012MB
    Sector size (logical/physical): 512B/512B
    Partition Table: msdos
    
    Number  Start   End     Size    Type     File system  Flags
    1      1049kB  8012MB  8011MB  primary  ext4         boot
    
    
    Model: Verbatim  (scsi)
    Disk /dev/sdc: 7927MB
    Sector size (logical/physical): 512B/512B
    Partition Table: msdos
    
    Number  Start   End     Size    Type     File system  Flags
    1      31.7kB  7924MB  7924MB  primary  fat32        boot, lba
    
    
    Model: Kingston DataTraveler 2.0 (scsi)
    Disk /dev/sdd: 4006MB
    Sector size (logical/physical): 512B/512B
    Partition Table: msdos
    
    Number  Start   End     Size    Type     File system  Flags
    1      31.7kB  4003MB  4003MB  primary  ntfs         boot, lba
    
    
    =================== MOUNT:
    /cow on / type overlayfs (rw)
    proc on /proc type proc (rw,noexec,nosuid,nodev)
    sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
    udev on /dev type devtmpfs (rw,mode=0755)
    devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
    tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
    /dev/sdc1 on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
    /dev/loop0 on /rofs type squashfs (ro,noatime)
    none on /sys/fs/fuse/connections type fusectl (rw)
    none on /sys/kernel/debug type debugfs (rw)
    none on /sys/kernel/security type securityfs (rw)
    tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
    none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
    none on /run/shm type tmpfs (rw,nosuid,nodev)
    gvfs-fuse-daemon on /home/ubuntu/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=ubuntu)
    /dev/sdd1 on /media/x type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
    /dev/sda1 on /mnt/boot-sav/sda1 type ext4 (rw)
    /dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw)
    
    
    /sys/block/sda:  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sda1 sda2 sda5 size slaves stat subsystem trace uevent
    /sys/block/sdb:  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sdb1 size slaves stat subsystem trace uevent
    /sys/block/sdc:  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sdc1 size slaves stat subsystem trace uevent
    /sys/block/sdd:  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sdd1 size slaves stat subsystem trace uevent
    /sys/block/sr0:  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro size slaves stat subsystem trace uevent
    /dev:  agpgart autofs block bsg btrfs-control bus cdrom cdrw char console core cpu cpu_dma_latency disk dri dvd dvdrw ecryptfs fb0 fb1 fd full fuse hidraw0 hidraw1 hidraw2 hidraw3 hpet input kmsg log mapper mcelog mei mem net network_latency network_throughput null oldmem port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda5 sdb sdb1 sdc sdc1 sdd sdd1 sg0 sg1 sg2 sg3 sg4 shm snapshot snd sr0 stderr stdin stdout uinput urandom usb usbmon0 usbmon1 usbmon2 usbmon3 usbmon4 v4l vga_arbiter video0 zero
    /dev/mapper:  control
    
    =================== DF:
    
    Filesystem     Type       Size  Used Avail Use% Mounted on
    /cow           overlayfs  2.9G  149M  2.8G   6% /
    udev           devtmpfs   2.9G   12K  2.9G   1% /dev
    tmpfs          tmpfs      1.2G  916K  1.2G   1% /run
    /dev/sdc1      vfat       7.4G  698M  6.7G  10% /cdrom
    /dev/loop0     squashfs   664M  664M     0 100% /rofs
    tmpfs          tmpfs      2.9G   44K  2.9G   1% /tmp
    none           tmpfs      5.0M  4.0K  5.0M   1% /run/lock
    none           tmpfs      2.9G  176K  2.9G   1% /run/shm
    /dev/sdd1      fuseblk    3.8G   20M  3.8G   1% /media/x
    /dev/sda1      ext4       689G   11G  644G   2% /mnt/boot-sav/sda1
    /dev/sdb1      ext4       7.5G  2.3G  4.8G  33% /mnt/boot-sav/sdb1
    
    =================== FDISK:
    
    Disk /dev/sda: 750.2 GB, 750156374016 bytes
    255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 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
    Disk identifier: 0x000df538
    
    Device Boot      Start         End      Blocks   Id  System
    /dev/sda1            2048  1445617663   722807808   83  Linux
    /dev/sda2      1445619710  1465147391     9763841    5  Extended
    Partition 2 does not start on physical sector boundary.
    /dev/sda5      1445619712  1465147391     9763840   82  Linux swap / Solaris
    
    Disk /dev/sdb: 8012 MB, 8012390400 bytes
    24 heads, 9 sectors/track, 72450 cylinders, total 15649200 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 identifier: 0x000ad451
    
    Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1   *        2048    15648767     7823360   83  Linux
    
    Disk /dev/sdc: 7927 MB, 7927234560 bytes
    244 heads, 62 sectors/track, 1023 cylinders, total 15482880 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 identifier: 0x0005c829
    
    Device Boot      Start         End      Blocks   Id  System
    /dev/sdc1   *          62    15475943     7737941    c  W95 FAT32 (LBA)
    
    Disk /dev/sdd: 4005 MB, 4005527552 bytes
    124 heads, 62 sectors/track, 1017 cylinders, total 7823296 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 identifier: 0x00030e44
    
    Device Boot      Start         End      Blocks   Id  System
    /dev/sdd1   *          62     7818695     3909317    c  W95 FAT32 (LBA)
    
    
    
    =================== Before mainwindow
    FSCK no PASTEBIN yes WUBI no WINBOOT no
    recommendedrepair, reinstall, QTY_OF_PART_FOR_REINSTAL 1 no-kernel-purge
    UNHIDEBOOT_ACTION yes (10s), noflag (sdb1)
    PART_TO_REINSTALL_GRUB sdb1, FORCE_GRUB all (sdb) REMOVABLEDISK no
    USE_SEPARATEBOOTPART no (sda1) grub2 ()
    UNCOMMENT_GFXMODE no ATA  ADD_KERNEL_OPTION no (acpi=off)
    MBR_TO_RESTORE  ( )
    
    =================== Actions
    FSCK no PASTEBIN yes WUBI no WINBOOT no
    bootinfo, nombraction, QTY_OF_PART_FOR_REINSTAL 1 no-kernel-purge
    UNHIDEBOOT_ACTION no (10s), noflag (sdb1)
    PART_TO_REINSTALL_GRUB sdb1, FORCE_GRUB all (sdb) REMOVABLEDISK no
    USE_SEPARATEBOOTPART no (sda1) grub2 ()
    UNCOMMENT_GFXMODE no ATA  ADD_KERNEL_OPTION no (acpi=off)
    MBR_TO_RESTORE  ( )
    No change has been performed on your computer. See you soon!
    internet: connected
    pastebinit  packages needed
    User refused to install pastebinit
    Ubuntu user since 29-OCT-2008 With Ubuntu 8.10

  8. #8
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Boot (mbr\grub) problem Ub 12.04

    With UEFI, you need to partition to gpt with an efi partition first. I use gpt with BIOS boot and one my new SSD left space for an efi partiiton, but needed a bios_grub to boot with BIOS.

    Changing to gpt will erase drive, although you may be able to convert. I do use gpt on my boot drive but have data partitions for NTFS and ext3 on a MBR drive.
    Attached Images Attached Images
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  9. #9
    Join Date
    May 2007
    Location
    Venezia (Italy)
    Beans
    34
    Distro
    Ubuntu

    Re: Boot (mbr\grub) problem Ub 12.04

    Yes I put "/" on all sdb (ssd 8gb) and the uefi partition on the 750hd (sda) and all worked well, but I still think how can I use it with EUFI disabled!

    I tried format che hd with ms-dos partition, but didn't work. I would like to install linux without UEFI.

    Is better run pc with or without UEFI?
    Ubuntu user since 29-OCT-2008 With Ubuntu 8.10

  10. #10
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Boot (mbr\grub) problem Ub 12.04

    Some say UEFI is faster booting and others cannot get it to work.

    It seems vendors do not have a consistent implementation of UEFI and some work better than others.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




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