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SubjectRe: Linux not adhering to BIOS Drive boot order?
Date
Andreas Dilger writes:
> Same thing, really. You have to poke each drive to get the serial
> number. What if they are IDE or SCSI or FCAL or RAID array? Probably
> reading a block from a disk is safer than trying to find the drive
> serial number.

If you apply the "read block from disk" method to a RAID1 array, how
you do you know whether you mean:

1) An active disk in the array
2) The actual array itself.

Hint: With Raid 1, the disks are complete images of each other. You can
mount a single disk which is/was part of a raid 1 array and read all data
off it.

If someone thinks about going down this road, make sure you check the
multiple-device arrays BEFORE the physical disks!
_____
|_____| ------------------------------------------------- ---+---+-
| | Russell King rmk@arm.linux.org.uk --- ---
| | | | http://www.arm.linux.org.uk/personal/aboutme.html / / |
| +-+-+ --- -+-
/ | THE developer of ARM Linux |+| /|\
/ | | | --- |
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