Re: Partition IDs in the New World TM

[Russell King]

Andrew Clausen writes:
> Why is this necessary?  Can't the RAID drivers probe the device for
> signatures, the same way file systems do?

One possible problem I can see here is to do with removal of RAID.  Think
of a RAID-1 array (2 or more disks containing identical data).  The
partition can be validly identified as an ext2 filesystem.  But wait, it
has a RAID superblock at the end.

How do we know if this superblock is current or not?  After all, a mke2fs
on the device won't remove it.  Yes, you could fill the partition with
zeros and start again, or you could just change the partition ID.

--
Russell King (address@hidden)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html