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[Bug 414996] Re: [karmic] grub re-writes boot sector on wrong drive on fresh install

 

I can confirm that this still applies to Maverick Alpha 2.

Recap:
- I burned an Mavrick Alpha 2 CD.
- booted from the CD
- for the installation I choose an USB-Stick as the installation partition
- installation was successful
- rebooting without the USB Stick failed

Even worse: the /boot directory of the internal drive was wiped!
I booted from the Alternate CD and had to reinstall the latest kernel manually and then reinstall grub into the boot sector.

Some scripts really seem to be getting confused with the devices the
should be dealing with.

I advise anyone to only test in VM's.  I currently cannot test VM's due
to bug #469419 so I'll resume my testing once something has been
committed to fix this issue and this report is closed.

-- 
[karmic] grub re-writes boot sector on wrong drive on fresh install
https://bugs.launchpad.net/bugs/414996
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Status in Mythbuntu, Ubuntu derivative focused upon MythTV: Invalid
Status in “grub2” package in Ubuntu: Confirmed

Bug description:
I attempted to install mythbuntu karmic/9.10 alpha 4 to a USB drive.   Using a laptop with an IDE drive containing Windows XP, I booted from the ISO image CD-ROM and went through the installation, selecting manual partitioning, and creating a single EXT4 root filesystem on a USB drive.   The installation proceeded through the complete install to the USB key until instructed to reboot.

I re-booted the laptop with the USB key inserted, and was presented with the message "No bootable partition in table".  Then, removing the USB key and booting from the laptop IDE drive (which should not have been touched by the mythbuntu install) I get the message "GRUB loading.  Welcome to GRUB!  Entering rescue mode... error: no such disk"  followed by the "grub rescue>" prompt.  

I examined the laptop hard drive with a partition editor, and the Windows partition is still intact....  but it looks like the boot sector has been re-written mistakenly.

Now I have two problems.....
1) how do I get Windows on my laptop to boot again....  I need my work data!
2) how do I make my mythbuntu USB front-end install bootable?