I used to have a great multi-boot system yet now on boot all I see is error: no such device: 383d0317-ed15-43f2-a5fe-96cd5b4d67b4. Grub rescue> The system had just been upgraded to Fed 17 via DVD, and the grub menu listed the current one plus the older kernels, and a Windows option (choosing that offered the Win7/XP windows boot menu, both of which were fine). What happened was I had the need to install Ubuntu TO a memory stick such that it would boot from it. I downloaded the full Ubuntu 10.0 DVD, booted it to live, and went through its install option, and chose the memory stick as a target. Nothing else - I definitely didn't tell it to touch the laptop. But it did :-(
When I boot from the fed DVD into rescue I see
dracut Warning: Unable to process initqueue
dracut Warning: /dev/disk/by-label/Fedorax2017x20x86_64 does not exist
dracut Warning: /dev/mapper/live-rw does not exist
Dropping to debug shell.
Googling shows I've been hit with this? https://bugzilla.redhat.com/show_bug.cgi?id=824617
However I found I can get to the windows sytem if I boot from the Super Grub disk http://www.supergrubdisk.org/
and choose "Detect any operating system" - an entry for "Windows Vista" (ugh) apppears in its grub menu, which works. The first entry though is F17 - vmlinuz-3.4.0-1.fc17.x86_64. Choosing that gives what appears to be a boot until "Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)"
And thats where I'm plub out of ideas. There were 6 partitions on its single drive, I'm sure all the OS's are ok. I just can't fathom out for the life of my why that damn Ubuntu install borked the boot system so badly, nor where to go from here.
Thanks in advance!