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I'm dual booting W7 and Ubuntu (installed from Wubi). I've had it up and running a few times but today I'm getting a message from Windows Boot Manager when I select Ubuntu that wubildr.mbr is missing or corrupt. Any help would be greatly appreciated.

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@creade So you're using windows boot loader to load linux? as opposed to using grub(2) to load windows? – xenoterracide Sep 13 '10 at 20:56
Is Ubuntu on the same drive as Windows, or external? Are you using anything special on your disk, such as encryption or RAID? – Jacob Peddicord Sep 15 '10 at 1:33
@xenoterracide wubi - is a weird way to install ubuntu - inside big file on windows partition so there's no other options, I guess. – Oleksandr Bolotov Dec 22 '10 at 19:06

migrated from unix.stackexchange.com Feb 11 '11 at 7:12

4 Answers

up vote 7 down vote

It is a general problem that happens with WUBI.Since Ubuntu is installed to a file inside windows partition,it becomes susceptible to corruptions that generally happen in Windows.You can reinstall Ubuntu but I recommend a full install.

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I did a fresh install and it seems to be working fine now. – creade Sep 17 '10 at 16:51
up vote 0 down vote

I can't test this but first use bcdedit from an elevated command prompt to find your Ubuntu partition and its identifier. Then try:

bcdedit /set {<ubuntu_id>} device partition=<ubuntu_part>:
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I gave this a shot but the partition was already set correctly in bcdedit. – creade Sep 14 '10 at 15:42
1  
Have you tried this? – gvkv Sep 14 '10 at 16:57
up vote 0 down vote

I encountered that error in one of my Wubi installations on Windows 7. Near as I can tell, it was just a hardware quirk, since I don't see that error anymore now that I've installed on a different (desktop instead of a laptop) machine.

And even when the error popped up, everything still worked fine. It just took a couple minutes to work past the error message and then the boot process continued as normal.

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up vote 0 down vote

In C:\ubuntu\winboot you will find a copy of wubildr and wubildr.mbr.

Copy them to C:\ and restart the system.

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be careful if the ubuntu folder is on another partition – silentbang Aug 6 '11 at 0:34

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