Wubi kernel upgrade goes to sh:grub prompt

I’m running Wubi with Ubuntu 9.10; I upgraded my kernel (from 14 to 19) and after a restart, landed at the GRUB prompt, “sh:grub>”. Yikes! I wasn’t actually familiar with the GRUB prompt before now. After some Google searching, here’s what I found: (keep reading, this is not the final solution, don’t bother following this link unless you’re just curious)

sh:grub Fix Wubi after grub-pc update on Karmic Koala

I followed those steps. He is very complete in his instructions. However, when I hit the “boot” command after loading up the 19 kernel, my computer just rebooted. I tried it again with my version 14 kernel and it booted into Ubuntu just fine. Okay, so I figured I’d just uninstall kernel 19 and go back to 14. Well, when I tried to do that in Synaptic, the generic meta packages depend on 19 so they would have been removed as well. I don’t know if this is a bad thing, but it scared me into more searching, where I found the real solution:

Boot Problems:Wubi 9.10

It’s quite simple; just do as the Solution section on the page says. I was careful to back up my existing wubildr file, but after rebooting, my boot menu was back! I chose kernel 19, and it booted correctly. Yay!

Oddly enough, if you do a Google search for “boot problems:wubi 9.10” or even include site:sourceforge.net, you will not find that page above. Edit: it is now in Google, though what search terms bring it to the top of the results I can’t be sure.

Edit 3-5-2010:

I just upgraded from 2.6.31-19 to 2.6.31-20 without problem. I did not have to recopy the wubildr file or anything; it just booted correctly. So it looks like this is a permanent fix!

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10 Responses to Wubi kernel upgrade goes to sh:grub prompt

  1. Carlos says:

    Thanks man! It worked for me, going from kernel 19 to 20.
    REALLY… THANKS A LOT! I was worried that I’d have to do very complicated steps or even worst, have to reinstall and loose all my stuff.

    • Ricky says:

      You’re welcome! I wrote it specifically because I had a hard time figuring it out myself. I’m glad it was helpful! I probably should upgrade to kernel 20 too, I’m still in 19.

  2. Nanina says:

    THANK YOU! I’ve been struggling w/ this problem for a while, cause I just can’t stop myself from installing the updates — so I ended up reinstalling each time (my files are stored on dropbox, so nothing lost, but still . . .) from 14 to 17 to 19. I just did the fix and am now happily in 20 w/o having to reinstall.

  3. Ricky says:

    Yikes! Reinstalling is no fun. But hooray for Dropbox! I use and recommend it as well.

    Haha, okay, so I feel the need to post my referral link now… If you’re reading this, and you don’t back up your files, think for a moment what would happen if your hard drive randomly died, like mine did a couple years ago. What all would you lose? Try Dropbox! If you sign up through this referral code, you and I both get an extra 250mb free. https://www.dropbox.com/referrals/NTM1MjIwNjk

  4. Enrico says:

    Great job, worked perfectly!

  5. Pingback: Omar's Blog » Finally fixing Wubi!

  6. Clayton says:

    Thanks, this was a big help!

  7. John says:

    Thanks that was great. I can go back to using Linux again.

  8. Ferraz75 says:

    replacing the wubidlr file allowed me to see the famous sh:grub> screen. I’ve searched and I’ve no ‘vmlinuz-… ‘ like file in the /boot/ folder. Does it means that I dont have kernel?
    Any suggestion?


  9. Skip says:

    MANY thanks my friend.

    i to was irked until i stumbled upon this page.

    +10 points

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