Public bug reported:
I have an old system that is supplied with an Intel Option ROM that does
not support > 2tb hard drives. Linux works perfectly on this system and
see hard drives bigger than 2tb though. I want to create a raid with
imsm metadata format and attach it to another system later. mdadm dosn't
let me do this. I try to force raid creating using the "--force" option
but it is ignored.
#mdadm --version
mdadm - v3.3 - 3rd September 2013
#mdadm --create --verbose /dev/md/imsm --level=5 --raid-devices=3 /dev/sd[b-d]
--metadata=imsm --force
mdmon: Cannot create this array on device /dev/sdb
mdadm: /dev/sdb is not suitable for this array.
mdmon: Cannot create this array on device /dev/sdc
mdadm: /dev/sdc is not suitable for this array.
mdmon: Cannot create this array on device /dev/sdd
mdadm: /dev/sdd is not suitable for this array.
mdadm: create aborted
It seems that it also block one from creating imsm metadata raids on AMD
platform or in a virtual machine of any type. Why? Why mdadm control
user? The "--force" switch is made for this. Ignore the Option ROM
version and create the raid! Its a fake raid after all.
** Affects: mdadm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1584520
Title:
mdadm ignores "--force" switch on Intel Fake Raid
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