On 21/09/2012 23:43, Chris Murphy wrote:
On Sep 21, 2012, at 1:35 PM, Chris Murphy wrote:
If you're making the RAID with that, it defaults to metadata version 1.2. But to be sure
mdadm -E /dev/mdX
Scratch that. I was confused. Try these instead:
mdadm -–detail-platform
mdadm –D /dev/md/imsm
mdadm –E /dev/sdX
I don't think there's anything wrong here.
The kernel sees the whole discs, sda and sdb, and complains that the GPT
partition table looks wrong becase the second copy isn't at the end of
the discs. That's correct, at the end of the raw discs is the IMSM
metadata. Once you've assembled the IMSM array with mdadm, the partition
table inside /dev/md/Volume0 is correct.
You'd see the same thing with a native md device with metadata 0.90 or
1.0 made from whole discs and with a GPT partition table inside.
Don't try to change the partition tables on /dev/sda and sdb or you will
damage the IMSM metadata.
Cheers,
John.
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