I managed to mess the grub menu earlier and tried to fix the situation.
Unfortunately I'm really out of ideas now. I get errors trying to run dpkg-reconfigure grub-pc and grub-install. grub-setup claims there is none of GPT partitions have a BIOS boot partition and that embedding is not possible.
/boot does have the boot flag on. I have tried to set the bios boot partition flag as well, but I'm uncertain where I'm supposed to put it. Setting it didn't do anything useful.
I have a three-disk system where 32 gigabytes at the start of each disk is reserved for /boot, /home, /, /var, /tmp and swap (/home is one 32GB partition, others are smaller). Rest of the disks are on RAID5.
I have tried all sorts and this is where I'm now and all I know to do would be to reinstall the system. I can't find anything useful by googling and I spent most of Saturday on this. So I would appreciate some pointers on what I could still try or if I should just give up and reinstall.
P.S. Now I know what I should have done instead of running any rescue applications: Download 64-bit Ubuntu image, boot, mount root and boot && bind /var, /tmp, /sys and /proc, chroot && edit the menu && update-grub.
But that's too late now. Next time I'm wiser.
Here's the output from fdisk -l:
root@ubuntu:/# fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 1 3907029167 1953514583+ ee GPT WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 3907029167 1953514583+ ee GPT WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 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: 0x00000000 Device Boot Start End Blocks Id System /dev/sdc1 1 3907029167 1953514583+ ee GPT
And here's parted:
parted -l Model: ATA WDC WD20EARS-00M (scsi) Disk /dev/sda: 2000GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 32.0GB 32.0GB bios_grub 2 32.0GB 2000GB 1968GB raid Model: ATA WDC WD20EARS-00M (scsi) Disk /dev/sdb: 2000GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 8000MB 8000MB linux-swap(v1) 2 8000MB 16.0GB 8000MB ext3 3 16.0GB 32.0GB 16.0GB ext3 4 32.0GB 2000GB 1968GB raid Model: ATA WDC WD20EARS-00M (scsi) Disk /dev/sdc: 2000GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 200MB 200MB ext3 boot 2 200MB 32.0GB 31.8GB ext3 3 32.0GB 2000GB 1968GB raid
bios_grub flag was added by me, it didn't exist before that (or it was wiped out by the rescue application).
