[aur-general] mkinitcpio/mdadm/mdadm_udev fail to start raid10

Ido Rosen ido at kernel.org
Tue Nov 25 01:09:06 UTC 2014

On Mon, Nov 24, 2014 at 8:06 PM, Doug Newgard <scimmia at archlinux.info> wrote:
> On Mon, 24 Nov 2014 17:27:09 -0500
> Ido Rosen <ido at kernel.org> wrote:
>> The the default configuration under ArchLinux and DEVICE partitions in
>> mdadm.conf, mdadm and the mdadm mkinitcpio hook fail to load the
>> raid10 kernel module automatically, and as a result raid10 arrays fail
>> to load on boot in Arch.
>> My temporary workaround is to include the raid10 kernel module in the
>> mkinitcpio.conf MODULES= list, it could also be included in
>> /etc/modules-load.d/*.conf, but this should not be necessary, and is
>> currently not necessary for raid1 arrays.  I do not think this is an
>> upstream problem since my LFS and Gentoo boxes do load the correct
>> (raid10) kernel module without any specific configuration to do so.
>> Has anyone else replicated this behavior?
>> Suggestions:
>> - Preferred: Make the initcpio hook/mdadm udev rules/whatever loads
>> raid1.ko normally also detect raid10 (and raid5, raid6, ...) arrays
>> properly.
>> - Alternatively: Add a section to the SW RAID wiki page describing how
>> to make the module load persist on boot
>> (https://wiki.archlinux.org/index.php/Software_RAID_and_LVM#Load_kernel_modules)
>> Ido
> Did you mean to send this to arch-general instead?

Yes, sorry.

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