[RndTbl] Big-endian RAID5 recovery problem
Roman Mamedov
rm at romanrm.net
Tue May 2 03:59:34 CDT 2017
On Mon, 01 May 2017 16:39:07 -0500
Adam Thompson <athompso at athompso.net> wrote:
> I can't find any modern big-endian Linux systems... looks like all the
> ARM distros run in little-endian mode.
Here are QEMU images for debian-mips (should be big-endian, as opposed to
debian-mipsel): https://people.debian.org/~aurel32/qemu/mips/
Of course it will run purely in software, but most likely more than fast enough
to copy away the data.
Not entirely sure that particular emulated MIPS system support more than 4
drives), but it appears that a starting point could be (man qemu-system):
Instead of -hda, -hdb, -hdc, -hdd, you can use:
qemu-system-i386 -drive file=file,index=0,media=disk
qemu-system-i386 -drive file=file,index=1,media=disk
qemu-system-i386 -drive file=file,index=2,media=disk
qemu-system-i386 -drive file=file,index=3,media=disk
with indexes 0..5, as you need the boot disk, all 4 drives, and one more as
the backup destination.
May or may not be the best way, but IMO beats trying to hex-edit the
superblock right away.
--
With respect,
Roman
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