A disk failed in a software RAID array and I'm trying to replace it. I've done this before without a hitch but this time I'm getting an error when trying to duplicate the partition table.
I'm using this command:
sfdisk -l /dev/sda | sfdisk /dev/sdb
And getting this error:
sfdisk: unrecognized input: 121601 cylinders, 255 heads, 63 sectors/track
Reading the sfdisk man page I can't honestly see how this command ever worked, but it's worked several times in the past.
Question: how can I duplicate the exact partition table to the 2nd disk, so I can use it for as a RAID member? I'm not wedded to sfdisk, it's just what's done the job well before.
Here's some detail in case it's helpful
sfdisk -l /dev/sda
Disk /dev/sda: 121601 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 3646 3647- 29294496 fd Linux raid autodetect
/dev/sda2 3647 121600 117954 947465505 5 Extended
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 0 - 0 0 0 Empty
/dev/sda5 3647+ 27961 24315- 195310206 fd Linux raid autodetect
/dev/sda6 27962+ 40119 12158- 97659103+ fd Linux raid autodetect
/dev/sda7 120628+ 121600 973- 7815591 fd Linux raid autodetect
/dev/sda8 119655+ 120627 973- 7815591 fd Linux raid autodetect
/dev/sda9 40120+ 119654 79535- 638864856 fd Linux raid autodetect
sfdisk -l /dev/sdb
Disk /dev/sdb: 121601 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sdb1 0+ 121600 121601- 976760001 83 Linux
/dev/sdb2 0 - 0 0 0 Empty
/dev/sdb3 0 - 0 0 0 Empty
/dev/sdb4 0 - 0 0 0 Empty
Also tried piping from the -d
option, but this tells me:
Device Boot Start End #sectors Id System
/dev/sdb1 * 63 58589054 58588992 fd Linux raid autodetect
/dev/sdb2 58589055 1953520064 1894931010 5 Extended
/dev/sdb3 0 - 0 0 Empty
/dev/sdb4 0 - 0 0 Empty
/dev/sdb5 58589118 449209529 390620412 fd Linux raid autodetect
/dev/sdb6 449209593 644527799 195318207 fd Linux raid autodetect
/dev/sdb7 1937888883 1953520064 15631182 fd Linux raid autodetect
/dev/sdb8 1922257638 1937888819 15631182 fd Linux raid autodetect
/dev/sdb9 644527863 1922257574 1277729712 fd Linux raid autodetect
Warning: partition 7 does not start at a cylinder boundary
sfdisk: I don't like these partitions - nothing changed.
(If you really want this, use the --force option.)
Is it possible that partition7 does start at a cylendar boundary on sda but wouldn't on sdb? Should I fix this (parted?) or force it?