Re: Need help with software RAID
Hello,
you must patch the kernel. go to
http://people.redhat.com/mingo/raid-patches/
then patch the kernel by doing patch -p0 < patchname
This will allow you to do mkraid /dev/md0
then you will have to do mkfs -t ext2 /dev/md0
then e2fsk -c /dev/md0
raidstart /dev/md0
mount /dev/md0 /bla
hope this helps
Matt
On Tue, 26 Dec 2000, Patrick wrote:
> Hi,
>
> I would really like to use stable potato, 2.2.17, but I can't
> get software raid working under debian for the life of me...
>
> I originally created the raid devices a year or so ago, on redhat 6.?,
> which
> used their custom kernel 2.2.5-15, and can use them fine if i boot into
> redhat or
> debian using that kernel.
>
>
> I compiled a couple of new kernels, 2.2.17, 2.2.18, and make sure raid
> is enabled
> but I get the same errors...
>
> /etc/raidtab looks like:
> raiddev /dev/md0
> raid-level 0
> nr-raid-disks 3
> persistent-superblock 1
> chunk-size 16
> device /dev/hdc11
> raid-disk 0
> device /dev/hde11
> raid-disk 1
> device /dev/hdg11
> raid-disk 2
>
> i'm using the raidtools2 package, I believe
> raidstart --version: raidstart v0.3d compiled for md raidtools-0.90
>
> but raidstart -c /etc/raidtab /dev/md0 results in this error:
> /dev/md0: Invalid argument
>
> fdisk thinks the drives look like:
> /dev/hdc11 3188 3270 41800+ fd Linux raid autodetect
>
> but /var/log/kern.log says:
> Dec 26 12:07:14 boz kernel: Oops ! md0 not running, giving up !
> Dec 26 12:07:14 boz kernel: Bad md_map in ll_rw_block
> Dec 26 12:07:14 boz kernel: EXT2-fs: unable to read superblock
>
>
> and # cat /proc/mdstat:
> Personalities : [2 raid0] [3 raid1]
> read_ahead not set
> md0 : inactive
> md1 : inactive
> md2 : inactive
> md3 : inactive
>
> I tried making new raid devices using mkraid, but that fails too...
>
> thanks for any advice,
> patrick.
>
>
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