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Message #01779
[Bug 414996] Re: [karmic] grub re-writes boot sector on wrong drive on fresh install
Also affected: HP Proliant DL140, which has two Bays for SATA drives
connected to a LSI Logic Raid Controller.
10.04 64bit Server Beta1, Beta2 and Release Candidate all behave the same when trying to install from USB stick.
Last binary I tried, downloaded a few hours ago: http://releases.ubuntu.com/releases/10.04/ubuntu-10.04-rc-server-amd64.iso
The installer environment detects the USB-Stick as /dev/sda and the only Hard Disk as /dev/sdb.
It displays the following for a second: Running "grub-install /dev/sda"
/dev/sda - the USB stick which contained ubuntu-10.04-rc-server-
amd64.iso until now - now has the MBR needed to boot the proliant
machine. The MBR on the hard disk drive /dev/sdb is not written.
On reboot with the USB stick disconnected, the screen justs blanks and displays a blinking underscore cursor.
(Without USB stick, the hard drive is detected as /dev/sda)
The USB stick can be used to boot the machine, log in and run "grub-
install /dev/sdb", which fixes the problem.
Kind regards,
Flummy
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[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?