I'm a newbie with Mint 13 Mate.

I've installed 3 hdd's plus I've added an external hdd (total of 4 including the boot up hdd). They were working okay but the external hdd was too slow so I changed the bios - serial ata setting from ide "2s2p" to "2s2p, 5513" (after reading threads, I thought it might work). Anyway, I rebooted and got the "boot disk Failure...." message. I changed the bios back to "2s2p" but the problem is still there.

I booted manually from the boot disk after the error but the error won't go away on subsequent reboots.

How do I get the system to boot up correctly again? Thanks.

btw - my guess is that the boot device changed names...sdbc to sdbd after boot up and this is causing the problem.....just a guess.

Boot up your live cd of Mint and use

I guess to check and see.

Here's that info. I'm stumped.

fdisk -l

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 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: 0x9e243dc7

Device Boot Start End Blocks Id System
/dev/sda1 63 234436544 117218241 7 HPFS/NTFS/exFAT

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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: 0x17c117c0

Device Boot Start End Blocks Id System
/dev/sdb1 63 312576704 156288321 7 HPFS/NTFS/exFAT

Disk /dev/sdc: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 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: 0xe064b94e

Device Boot Start End Blocks Id System
/dev/sdc1 2048 234440703 117219328 7 HPFS/NTFS/exFAT

Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0xdce7dce7

Device Boot Start End Blocks Id System
/dev/sdd1 * 63 209712508 104856223 7 HPFS/NTFS/exFAT
/dev/sdd2 209712571 976771071 383529250+ f W95 Ext'd (LBA)
/dev/sdd5 209712573 873476003 331881715+ 7 HPFS/NTFS/exFAT
/dev/sdd6 873476096 971532287 49028096 83 Linux
/dev/sdd7 971534336 976771071 2618368 82 Linux swap / Solaris

Disk /dev/sdi: 500.1 GB, 500107860480 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773165 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: 0x32323c0a

Device Boot Start End Blocks Id System
/dev/sdi1 63 976768064 488384001 c W95 FAT32 (LBA)

I went back into bios and changed the boot order to the correct boot up disk. The boot up order must have changed when I made my original erroneous change to bios. Now it boots up correctly. Thanks.