Moshe Yudkowsky wrote:
My mind boggles. I know how to mount an ISO as a loop device onto the
file system, but if you'd be so kind, can you give a super-brief
description on how to get a loop device to look like an actual partition
that can be made into a RAID array? I can see this software-only
solution as being quite interesting for testing in general.
I tried this a while back, IIRC the procedure was:
1) Make some empty files of the required length each.
2) Use losetup to mount each one onto a loop device (loop0-3 say).
3) Use /dev/loop[0-3] as component devices to mdadm as you would use any
other device or partition. It is not necessary to partition the loop
devices, use them whole.
HTH
Tim
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