HOWTO: migrate wubi install to partition

[Telos3K]

Hi,

I've followed the above to migrate from wubi, creating sda6 and sda 7 (as I already had an sda5 and didn't want to accidentally erase data).

when rebooting, I get the grub prompt.

I enter

grub> root (hd0,6)

then

grub> kernel /boot/vmlinuz-2.6.32-24-generic

and get
error: unknown command 'kernel'.

what am I doing wrong?

[bcbc]

Hi,

I've followed the above to migrate from wubi, creating sda6 and sda 7 (as I already had an sda5 and didn't want to accidentally erase data).

when rebooting, I get the grub prompt.

I enter

grub> root (hd0,6)

then

grub> kernel /boot/vmlinuz-2.6.32-24-generic

and get
error: unknown command 'kernel'.

what am I doing wrong?

So first off - did you use the script or run it manually?

Assuming you successfully migrated to /dev/sda6, and you have a grub prompt (not a grub rescue) then the following should boot it:

insmod ext2
set root=(hd0,6)
linux /vmlinuz root=/dev/sda6 ro 
initrd /initrd.img
boot

PS /vmlinuz links to the latest installed kernel, or you can use /boot/vmlin (and hit the Tab key to see available kernels)

Once you boot into your new install, reinstall the grub bootloader:

sudo grub-install /dev/sda

If you're not sure, boot an Ubuntu CD in 'Live CD' mode and run bootinfoscript and post back the results.

[Telos3K]

I ran it manually.
Since my last post I ran windows recovery (since one problem I had was that Win7 stopped running when I had wubi set up). So, looking in windows disk management, Isee that my partitions are still set up (a Recovery, a winOS (C: drive), DATA (D:, and with all the data files still intact) and three additional partitions, which I assume are the sda6, 7 and 8 I set up for the migration. In theory, Ubuntu is now on sda6, but of course I can't see anything from windows -- all the space is given as "free."

So how do I get back over to sda6? Can I just reboot the machine and run the above command, or do I have to reboot from a LiveCD, or....? (This is a case where I'd rather ask first.)

Thanks!

[bcbc]

I ran it manually.
Since my last post I ran windows recovery (since one problem I had was that Win7 stopped running when I had wubi set up). So, looking in windows disk management, Isee that my partitions are still set up (a Recovery, a winOS (C: drive), DATA (D:, and with all the data files still intact) and three additional partitions, which I assume are the sda6, 7 and 8 I set up for the migration. In theory, Ubuntu is now on sda6, but of course I can't see anything from windows -- all the space is given as "free."

So how do I get back over to sda6? Can I just reboot the machine and run the above command, or do I have to reboot from a LiveCD, or....? (This is a case where I'd rather ask first.)

Thanks!

If you boot to a grub prompt you can just enter those commands I showed.
To be honest, the simplest way for me to help you is if you post the results of the bootinfoscript.

If it turns out that there was a problem with the migration, your wubi install should remain untouched and reinstalling the windows bootloader (or lilo from an ubuntu cd) will get that booting again. But let's get the bootinfoscript first so we can see.

[Telos3K]

The results from bootinfoscript. FWIW, accessing sda6 from the LiveCD seems to indicate that all the wubi files are in there.....

                Boot Info Script 0.55    dated February 15th, 2010                    

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

 => Windows is installed in the MBR of /dev/sda

sda1: _________________________________________________________________________

    File system:       vfat
    Boot sector type:  Vista: Fat 32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   /bootmgr /boot/bcd

sda2: _________________________________________________________________________

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

sda3: _________________________________________________________________________

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

sda5: _________________________________________________________________________

    File system:       ntfs
    Boot sector type:  -
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   

sda6: _________________________________________________________________________

    File system:       ext2
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 10.04.1 LTS
    Boot files/dirs:   /boot/grub/grub.cfg /etc/fstab

sda7: _________________________________________________________________________

    File system:       ext2
    Boot sector type:  -
    Boot sector info:  
    Operating System:  
    Boot files/dirs:   

sda8: _________________________________________________________________________

    File system:       ext2
    Boot sector type:  -
    Boot sector info:  
    Operating System:  
    Boot files/dirs:   

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

Drive: sda ___________________ _____________________________________________________

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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               2,048    30,716,279    30,714,232  1c Hidden W95 FAT32 (LBA)
/dev/sda2    *     30,716,280   274,904,279   244,188,000   7 HPFS/NTFS
/dev/sda3         274,904,280   976,768,064   701,863,785   f W95 Ext d (LBA)
/dev/sda5         274,904,343   378,781,695   103,877,353   7 HPFS/NTFS
/dev/sda6         378,783,744   583,583,743   204,800,000  83 Linux
/dev/sda7         583,585,792   788,828,159   205,242,368  83 Linux
/dev/sda8         788,830,208   892,948,479   104,118,272  83 Linux


blkid -c /dev/null: ____________________________________________________________

Device           UUID                                   TYPE       LABEL                         

/dev/loop0                                              squashfs                                 
/dev/sda1        3C98-AC5D                              vfat       RECOVERY                      
/dev/sda2        BCB68218B681D376                       ntfs       OS                            
/dev/sda5        B19401CA6A583703                       ntfs       DATA                          
/dev/sda6        b610e25d-4073-487b-abc3-db17a16dea91   ext2       /dev/sda6                     
/dev/sda7        89a1b68b-20dd-4897-b826-92ba8adeb48d   ext2       /dev/sda7                     
/dev/sda8        10746ca2-a741-45e3-8a23-814b27967f4e   ext2       /dev/sda/8                    
/dev/sda: PTTYPE="dos" 

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

Device           Mount_Point              Type       Options

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


=========================== sda6/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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,6)'
search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd0,6)'
search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
set locale_dir=($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 2.6.32-26-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    linux    /boot/vmlinuz-2.6.32-26-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro acpi_backlight=vendor  quiet splash
    initrd    /boot/initrd.img-2.6.32-26-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-26-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    echo    'Loading Linux 2.6.32-26-generic ...'
    linux    /boot/vmlinuz-2.6.32-26-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro single acpi_backlight=vendor
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.32-26-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-25-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    linux    /boot/vmlinuz-2.6.32-25-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro acpi_backlight=vendor  quiet splash
    initrd    /boot/initrd.img-2.6.32-25-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-25-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    echo    'Loading Linux 2.6.32-25-generic ...'
    linux    /boot/vmlinuz-2.6.32-25-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro single acpi_backlight=vendor
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.32-25-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    linux    /boot/vmlinuz-2.6.32-24-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro acpi_backlight=vendor  quiet splash
    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='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    echo    'Loading Linux 2.6.32-24-generic ...'
    linux    /boot/vmlinuz-2.6.32-24-generic root=UUID=b610e25d-4073-487b-abc3-db17a16dea91 ro single acpi_backlight=vendor
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.32-24-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set b610e25d-4073-487b-abc3-db17a16dea91
    linux16    /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows Vista (loader) (on /dev/sda1)" {
    insmod fat
    set root='(hd0,1)'
    search --no-floppy --fs-uuid --set 3c98-ac5d
    chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sda2)" {
    insmod ntfs
    set root='(hd0,2)'
    search --no-floppy --fs-uuid --set cc624cd7624cc842
    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 ###

=============================== sda6/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

proc    /proc    proc    nodev,noexec,nosuid    0    0
/dev/sda2    /host    ntfs-3g    defaults,nosuid,nodev,locale=en_US.utf8    0    0
/dev/sda5    /media/DATA    ntfs-3g    defaults,nosuid,nodev,locale=en_US.utf8    0    0
/host/ubuntu/disks/root.disk    /    ext4    loop,errors=remount-ro    0    1
/host/ubuntu/disks/swap.disk    none    swap    loop,sw    0    0


UUID=b610e25d-4073-487b-abc3-db17a16dea91    /    ext4    errors=remount-ro    0    1
UUID=89a1b68b-20dd-4897-b826-92ba8adeb48d    none    swap    sw    0    0

=================== sda6: Location of files loaded by Grub: ===================


 232.6GB: boot/grub/grub.cfg
 232.5GB: boot/initrd.img-2.6.32-24-generic
 232.5GB: boot/initrd.img-2.6.32-25-generic
 232.4GB: boot/initrd.img-2.6.32-26-generic
 232.5GB: boot/vmlinuz-2.6.32-24-generic
 232.5GB: boot/vmlinuz-2.6.32-25-generic
 232.5GB: boot/vmlinuz-2.6.32-26-generic
 232.4GB: initrd.img
 232.5GB: initrd.img.old
 232.5GB: vmlinuz
 232.5GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader  on sda3

00000000  eb 58 90 46 52 44 4f 53  34 2e 31 00 02 10 20 00  |.X.FRDOS4.1... .|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 d8 b4 62 10  |........?.....b.|
00000020  3b 8b 38 01 08 27 00 00  00 00 00 00 12 05 00 00  |;.8..'..........|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 00 29 f2 2c 9e 58 4e  4f 20 4e 41 4d 45 20 20  |..).,.XNO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 fc fa 29 c0 8e d8  |  FAT32   ..)...|
00000060  bd 00 7c b8 e0 1f 8e c0  89 ee 89 ef b9 00 01 f3  |..|.............|
00000070  a5 ea 7a 7c e0 1f 00 00  60 00 8e d8 8e d0 8d 66  |..z|....`......f|
00000080  e0 fb 88 56 40 be c1 7d  e8 f4 00 66 31 c0 66 89  |...V@..}...f1.f.|
00000090  46 44 8b 46 0e 66 03 46  1c 66 89 46 48 66 89 46  |FD.F.f.F.f.FHf.F|
000000a0  4c 66 8b 46 10 66 f7 6e  24 66 01 46 4c b8 00 02  |Lf.F.f.n$f.FL...|
000000b0  3b 46 0b 74 08 01 c0 ff  06 34 7d eb f3 66 8b 46  |;F.t.....4}..f.F|
000000c0  2c 66 50 e8 94 00 72 4d  c4 5e 76 e8 b7 00 31 ff  |,fP...rM.^v...1.|
000000d0  b9 0b 00 be f1 7d f3 a6  74 15 83 c7 20 83 e7 e0  |.....}..t... ...|
000000e0  3b 7e 0b 75 eb 4a 75 e0  66 58 e8 34 00 eb d2 26  |;~.u.Ju.fX.4...&|
000000f0  ff 75 09 26 ff 75 0f 66  58 29 db 66 50 e8 5a 00  |.u.&.u.fX).fP.Z.|
00000100  72 0d e8 80 00 4a 75 fa  66 58 e8 14 00 eb ec 8a  |r....Ju.fX......|
00000110  5e 40 ff 6e 76 be ee 7d  e8 64 00 30 e4 cd 16 cd  |^@.nv..}.d.0....|
00000120  19 06 57 53 89 c7 c1 e7  02 50 8b 46 0b 48 21 c7  |..WS.....P.F.H!.|
00000130  58 66 c1 e8 07 66 03 46  48 bb 00 20 8e c3 29 db  |Xf...f.FH.. ..).|
00000140  66 3b 46 44 74 07 66 89  46 44 e8 38 00 26 80 65  |f;FDt.f.FD.8.&.e|
00000150  03 0f 26 66 8b 05 5b 5f  07 c3 66 3d f8 ff ff 0f  |..&f..[_..f=....|
00000160  73 15 66 48 66 48 66 0f  b6 56 0d 66 52 66 f7 e2  |s.fHfHf..V.fRf..|
00000170  66 5a 66 03 46 4c c3 f9  c3 31 db b4 0e cd 10 ac  |fZf.FL...1......|
00000180  3c 00 75 f5 c3 52 56 57  66 50 89 e7 6a 00 6a 00  |<.u..RVWfP..j.j.|
00000190  66 50 06 53 6a 01 6a 10  89 e6 8a 56 40 b4 42 cd  |fP.Sj.j....V@.B.|
000001a0  13 89 fc 66 58 73 08 50  30 e4 cd 13 58 eb d9 66  |...fXs.P0...X..f|
000001b0  40 03 5e 0b 73 07 8c c2  80 c6 10 8e c2 5f 00 fe  |@.^.s........_..|
000001c0  ff ff 07 fe ff ff 3f 00  00 00 e9 0a 31 06 00 fe  |......?.....1...|
000001d0  ff ff 05 fe ff ff 28 0b  31 06 00 08 35 0c 00 00  |......(.1...5...|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200

[bcbc]

The results from bootinfoscript:
...

You need to edit your fstab.

sudo mount /dev/sda6 /mnt
gksu gedit /mnt/etc/fstab

Comment out the following lines by adding a '#':

#/dev/sda2    /host    ntfs-3g    defaults,nosuid,nodev,locale=en_US.utf8    0    0
#/host/ubuntu/disks/root.disk    /    ext4    loop,errors=remount-ro    0    1
#/host/ubuntu/disks/swap.disk    none    swap    loop,sw    0    0
#UUID=89a1b68b-20dd-4897-b826-92ba8adeb48d    none    swap    sw    0    0

The first one is the old /host from Windows (which doesn't require an entry in fstab anyway - not sure why that's there). The next two are the root.disk and swap.disk from Wubi.
The fourth is your /dev/sda7 marked as swap but in fact it's an ext2 partition so won't work as swap. You'll have to go into gparted later and change it to type "swap" and then run "mkswap" on it before adding it back to /etc/fstab (with the updated UUID as it changes when you run mkswap)

After you've finished editing it, then you need to install grub's bootloader to the MBR:

sudo grub-install --root-directory=/mnt /dev/sda

Reboot. Should work.

Is there any reason you went with "ext2" partitions instead of "ext4"? I'm not aware of any problems with this, but haven't tried it myself.

PS did you totally recover Windows, because your wubi install is gone? Do you have a backup of your old wubi files?

[Telos3K]

I had backed up my data files but not my wubi files before I ran into this problem.
I chose ext2 rather than ext4 because I didn't know better
When I run

sudo mount /dev/sda6 /mnt
gksu gedit /etc/fstab
in the terminal off of the LiveCD (as I know no other way of accessing Ubuntu at this point), the text I get in gedit is:

aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0

So clearly I'm doing something wrong......
And now, in the Places list, sda6 is missing -- did mounting it remove it from this list?

[bcbc]

Oh sorry about that: should be

gsku gedit /mnt/etc/fstab

[Telos3K]

made the changed and saved the file, and ran the grub install.

What do I need to know before I reboot? Do I reboot from the LiveCD, or do I disconnect that and just reboot from nthe machine? Will I be getting the grub prompt? If so, do I then run the code that you suggested a while back, or is that no longer necessary?

[bcbc]

made the changed and saved the file, and ran the grub install.

What do I need to know before I reboot? Do I reboot from the LiveCD, or do I disconnect that and just reboot from nthe machine? Will I be getting the grub prompt? If so, do I then run the code that you suggested a while back, or is that no longer necessary?

Tell it to restart, it will tell you to remove the CD, boot it up (while crossing your fingers). If you end up at a grub prompt... you can try the manual boot. If that fails too, boot from the Live CD and post back here.