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Thread: HOWTO: migrate wubi install to partition

  1. #91
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    Ubuntu 11.04 Natty Narwhal

    Re: HOWTO: migrate wubi install to partition

    I´m actually reading up on all the problems when upgrading to grub2, but it seems a patched wubildr found in comment #90 here:

    https://bugs.launchpad.net/ubuntu/+s...x?comments=all

    Fixes the boot problem when upgrading grub-legacy to grub2. Still, will not trry it yet, though I might read up some more and go ahead and do it, since I really need to move my wubi to dedicated partition soon, actually VERY soon.

    Cheers!

  2. #92
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    Re: HOWTO: migrate wubi install to partition

    Quote Originally Posted by Praetor77 View Post
    So how should I proceed if I have grub-legacy? Is there any way to upgrade grub to grub2 before proceeding with scripts?

    Thanks in advance....
    Try this. The following is only for wubi installs with grub-legacy.

    I used it to migrate a Jaunty (9.04) wubi install. It's a vanilla install (with all updates applied) and so I make no guarantees - not tested on 9.10/10.04. Also, since the commands are manual you have to be very careful. Take backups before hand, especially the wubi files (the \ubuntu directory).

    Also, note, I do not try and use grub-legacy on the migrated install as a matter of preference - I remove and replace it with grub2 (grub-pc), and this behaves differently depending on the version. With Jaunty it's version 1.96 and it's very different to the version on 10.04 (I'll describe the differences you might see).

    Following example migrates a wubi install to an external drive (/dev/sdb) - root is /dev/sdb10 and swap is /dev/sdb7 - change as appropriate before cut-and-pasting (as you can easily paste a newline and then the command executes immediately).
    Code:
    sudo -i
    mkfs.ext3 /dev/sdb10
    
    mkdir /tmp/wubimove
    mount /dev/sdb10 /tmp/wubimove
    rsync  -av --exclude=/host --exclude=/mnt/* --exclude=/home/*/.gvfs   --exclude=/media/*/* --exclude=/tmp/* --exclude=/proc/*  --exclude=/sys/*  / /tmp/wubimove
          
    mkswap /dev/sdb7
    echo "RESUME=UUID=$(blkid -o value -s UUID /dev/sdb7)" > /tmp/wubimove/etc/initramfs-tools/conf.d/resume
    
    sed -i 's:/.*[\.]disk .*::' /tmp/wubimove/etc/fstab    
    sed -i 's:/.*/disks/boot .*::' /tmp/wubimove/etc/fstab
    echo "UUID=$(blkid -o value -s UUID /dev/sdb10)    /    ext3    errors=remount-ro    0    1" >> /tmp/wubimove/etc/fstab
    echo "UUID=$(blkid -o value -s UUID /dev/sdb7)    none    swap    sw    0    0" >> /tmp/wubimove/etc/fstab
          
    mkdir /tmp/wubimove/host
    cp /etc/resolv.conf /tmp/wubimove/etc
    for i in dev proc sys dev/pts host; do mount --bind /$i /tmp/wubimove/$i; done
    chroot /tmp/wubimove
    dpkg-divert --local --rename --add /sbin/initctl
    ln -s /bin/true /sbin/initctl
    apt-get -y remove lupin-support
    apt-get -y purge grub grub-common
    mv /boot/grub /boot/grubold
    
    #... continues below
    This part installs grub2 - if you are on 10.04 it will automatically generate grub.cfg and prompt you where to install the bootloader. If you are on 9.04 and probably 9.10 you have to do it yourself (lines in italics).
    Code:
    apt-get -y install grub-pc grub-common
    update-grub
    grub-install /dev/sdb
    
    rm /sbin/initctl
    dpkg-divert --local --rename --remove /sbin/initctl
    exit
    for i in host dev/pts dev proc sys; do umount /tmp/wubimove/$i; done
    rmdir /tmp/wubimove/host
    umount /dev/sdb10
    
    update-grub
    exit
    exit

  3. #93
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    Re: HOWTO: migrate wubi install to partition

    It kinda worked! I got a grub rescue console, booted up with a Live USB, did:

    sudo mount /dev/sda6 / mnt (I moved my wubi installation to an ext4 sda6 partition)
    sudo grub-install --root-directory=/mnt/ /dev/sda

    reboot and done! will post again after sudo update-grub and reboot...

  4. #94
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    Re: HOWTO: migrate wubi install to partition

    Quote Originally Posted by Praetor77 View Post
    It kinda worked! I got a grub rescue console, booted up with a Live USB, did:

    sudo mount /dev/sda6 / mnt (I moved my wubi installation to an ext4 sda6 partition)
    sudo grub-install --root-directory=/mnt/ /dev/sda

    reboot and done! will post again after sudo update-grub and reboot...
    OK... if you have problems, you just need to reinstall the windows bootloader and you should be back where you started. It's strange you got grub rescue - that means you installed grub but it couldn't find the Ubuntu partition when you booted! Unless you did this by accident from the wubi install - not in chroot - then it's unusual.

    PS. The reason I used ext3 is that wubi installs prior to 9.10 were on ext3.
    Last edited by bcbc; September 27th, 2010 at 05:44 PM.

  5. #95
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    Re: HOWTO: migrate wubi install to partition

    Thanks for everything, worked perfectly. I had a 9.10 installation, but had grub-legacy for some reason, I suppose I upgraded from 9.04, don't really remember.

    Thanks again!

  6. #96
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    Re: HOWTO: migrate wubi install to partition

    Quote Originally Posted by Praetor77 View Post
    Thanks for everything, worked perfectly. I had a 9.10 installation, but had grub-legacy for some reason, I suppose I upgraded from 9.04, don't really remember.

    Thanks again!
    OK cool. Glad it worked out!

  7. #97
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    Smile Re: HOWTO: migrate wubi install to partition

    Would like to pop in to say thank you very much for the script. Worked great and with a little bit of work on the Windows 7 side I managed to transition smoothly. Keep up the awesome work.

  8. #98
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    Re: HOWTO: migrate wubi install to partition

    Quote Originally Posted by elrics_fate View Post
    Would like to pop in to say thank you very much for the script. Worked great and with a little bit of work on the Windows 7 side I managed to transition smoothly. Keep up the awesome work.
    Great I appreciate the feedback... enjoy!

  9. #99
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    Re: HOWTO: migrate wubi install to partition

    Worked like a charm. I used your script

  10. #100
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    Re: HOWTO: migrate wubi install to partition

    Quote Originally Posted by rneuls View Post
    Worked like a charm. I used your script
    Great

    Yeah I expect most people would use the script. The manual commands are good if you want to know what the script is doing without having to wade through all the bumph (additional error checks, decision making, variable substitution) that makes it hard to read.

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