Lacie 5Big2 Failed After Firmware Update

[Mijzelf]

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mdadm --create --assume-clean --metadata=1.0 --chunk=512K --level=raid5  --layout=left-symmetric --raid-devices=5 /dev/md0 /dev/sd[abcde]2

[unlucky1]

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mdadm: invalid chunk/rounding value: 512K


[fvdw]

:please

[unlucky1]

Ha ha ha ha!!

[Mijzelf]

Did I ever tell you I'm a bad reader? From the man page:

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--chunk=
Specify chunk size of kibibytes. The default when creating an array is 512KB. To ensure compatibility with earlier versions, the default when Building and array with no persistent metadata is 64KB. This is only meaningful for RAID0, RAID4, RAID5, RAID6, and RAID10.

RAID4, RAID5, RAID6, and RAID10 require the chunk size to be a power of 2. In any case it must be a multiple of 4KB.

A suffix of 'M' or 'G' can be given to indicate Megabytes or Gigabytes respectively.

So clearly the K should be omitted.

[unlucky1]

And now... should I say continue?

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mdadm: /dev/sdc2 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Thu Jan  1 00:00:39 1970
mdadm: /dev/sdd2 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Thu Jan  1 00:00:39 1970
mdadm: /dev/sde2 appears to be part of a raid array:
    level=raid5 devices=5 ctime=Thu Jan  1 00:00:39 1970
Continue creating array?

[Mijzelf]

Yes. .

[unlucky1]

Continue creating array? yes
mdadm: array /dev/md0 started.

Now what? (**nervous**)

[Mijzelf]

Try to mount it.

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mkdir /mp2
mount -o ro /dev/md0 /mp2

[Mijzelf]

My F5 key is wearing out.