I reinstalled 12.04.1 on a trible boot system and got the "error no such device", "Grub rescue" prompt.
I found this thread:
but you see what happened, then here:
Code:Disk /dev/sda: 320.1 GB, 320072933376 bytes 240 heads, 63 sectors/track, 41345 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00058ed2 Device Boot Start End Blocks Id System /dev/sda1 * 2048 125835263 62916608 7 HPFS/NTFS/exFAT /dev/sda2 125835264 461389823 167777280 7 HPFS/NTFS/exFAT /dev/sda3 461389824 618676223 78643200 83 Linux /dev/sda4 618676224 625141759 3232768 82 Linux swap / Solaris Disk /dev/sdb: 203.9 GB, 203928109056 bytes 255 heads, 63 sectors/track, 24792 cylinders, total 398297088 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000e6065 Device Boot Start End Blocks Id System /dev/sdb1 63 188570969 94285453+ 7 HPFS/NTFS/exFAT /dev/sdb2 188570970 272462399 41945715 7 HPFS/NTFS/exFAT /dev/sdb3 * 272462400 398297087 62917344 83 Linux ubuntu@ubuntu:~$ sudo mkdir /media/sdb3 ubuntu@ubuntu:~$ sudo mount /dev/sdb3 /media/sdb3 ubuntu@ubuntu:~$ sudo grub-install --root-directory=media/sdb3 /dev/sdb3 /usr/sbin/grub-probe: error: cannot find a device for media/sdb3/boot/grub (is /dev mounted?).
When I reinstalled new 12.04 I "think" I said sdb, not remembering that I "may" have used sda for the mbr... It appears this is so.
Anyway, Ignore my noobiness but I am sort of stuck here and I need to get off to work - can someone please assist so I can get to my system when I return.
I just want a grub2 boot to 12.04.1 LTS, WinXP and 10.04LTS as I had before.
Also, is that what I did? The 12.04.1 install defaulted to sdb to load bootloader on install - I presumed it "knew" that is where it was/should be (but I guess not?)
I would like to not have to reinstall 120.4.01 all over, but if i have to, will it delete the (apparently now wrong) boot loader on sdb?
If NOT, how do I do it before re-installing?
Thank you (again!)!