Hello,

I have one raid0 array consisting of two disks, created with
raidtools-0.42 on kernel 2.1.98. When trying to run this array under
kernel 2.1.127 with the latest raidtools-0.90 I receive folowing
error:

# raidstart -a
(read) sda3;s Sb offset: 68480
md: invalid raid superblock magic on sda3
md: sda3 has invalid sb, marking faulty!
can not autostart based on faulty sda3!
export_rdev(sda3)
autostart sda4 failed
/dev/md0 Invalid argument

content of /etc/raidtab follows:

# md0 configuration
raiddev                 /dev/md0
raid-level              0    # it's not obvious but this *must* be
                             # right after raiddev
persistent-superblock   0    # set this to 1 if you want autostart,
                             # BUT SETTING TO 1 WILL DESTROY PREVIOUS
                             # CONTENTS if this is a RAID0 array created
                             # by older raidtools (0.40-0.51) or mdtools!
chunk-size              4
nr-raid-disks           2
nr-spare-disks          0
device                  /dev/sda3
raid-disk               0
device                  /dev/sdb3
raid-disk               1      


the old /etc/mdtab file contains:
# mdtab entry for /dev/md0
/dev/md0        raid0,4k,0,3d593ed2     /dev/sda3 /dev/sdb3
# mdtab entry for /dev/md1
/dev/md1        raid0,4k,0,98fdfc68     /dev/sda4 /dev/sdb4    


Both arrays are working with the old raidtools 0.42 and kernel 2.1.98,
can I use this arrays with the new raidtools? (I also tried running
mkraid with upgrade option but it gave up witch similar message..)

TIA

David Haring

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