Bug#534470: Using mdadm 2.6.7.2 to assemble a raid array created withmdadm 1.9.0 will corrupt it making mdadm 1.9.0 to crash whentrying to reassemble

[RUSSOTTO François-Xavier 200103]

Hi Neil,

> >>
> >> Use --create --assume-clean again but add the --uuid= option there.
> >>
> >
> > I already tried this. But that didn't work, mdadm says that option
> > "--uuid=" is not available when "--create" is used.
> 
> You would need mdadm-2.6 or later.  And that might get the checksum
> wrong ... but it might be worth trying if you can figure a way to
> do it.

Except if I'm mistaken, creating the array will start (thus assemble) it. I should then get a workable array with mdadm-2.6 but no more workable for mdadm-1.9 . So this shouldn't work... am I wrong ?

> >> If that doesn't work (and I'm not 100% sure it will), you will need to
> >> find a way to rebuild your initrd.
> >
> What I would try would be:
>   - --create the array
>   - mount the filesystem
>   - chroot /mount/point
>   - mkinitramfs
> (or whatever the command is).  Maybe it is "mkinitrd" in that
> release of Debian.

I will try mkinitrd. I am not used to use this command. I guess that I need to mount any needed filesystem prior to use it (there also is another raid on my system using /dev/sd[a-c]3; corrupted by mdadm as the first one).

My system uses EFI to boot; should I have to simply copy the initrd.img generated to the EFI partition ?

Thanks,