I'm writing a disaster recovery utility...
The raid-tools are built on RedHat 6.0 and stripped. It's based on RH
6.0 because that's the lowest distro I want to support.
Anyway, during recovery procedure done on RH 7.2, the original RH7.2
kernel and its modules (raid.o, aic7xxx.o) are loaded from the
floppies. Initial ramdisk kicks in, things are up and running. Now,
I want to put back the raid0 stuff. cfdisk puts back the partition
info to the drive. And then I call mkraid --really-force /dev/md0 but
it gives a segfault. I have the /etc/raidtab, /etc/fstab at this
time. This mkraid version works fine if I had the RH 7.2 fully up
running. It only crashes when I'm using the floppies during the
recovery process. ldd shows that mkraid only requires libc and ld-so.
Here's the error message I'm getting:
# ./mkraid --really-force /dev/md0
DESTROYING the contents of /dev/md0 in 5 seconds, Ctrl-C if unsure!
handling MD device /dev/md0
analyzing super-block
disk 0: /dev/sda3 , 5116702kB, raid superblock at 5116608kB
Segmentation fault
# cat /etc/fstab
LABEL=/ / ext3 defaults
1 1
LABEL=/boot /boot ext3 defaults
1 2
none /dev/pts devpts gid=5,mode=620
0 0
none /proc proc defaults
0 0
none /dev/shm tmpfs defaults
0 0
LABEL=/usr /usr ext3 defaults
1 2
/dev/sda5 swap swap defaults
0 0
/dev/cdrom /mnt/cdrom iso9660
noauto,owner,kudzu,ro 0 0
/dev/fd0 /mnt/floppy auto
noauto,owner,kudzu 0 0
# cat /etc/raidtab
raiddev /dev/md0
raid-level 0
nr-raid-disks 2
chunk-size 64k
persistent-superblock 1
nr-spare-disks 0
device /dev/sda3
raid-disk 0
device /dev/sda6
raid-disk 1
Could I be missing something? Does mkraid call something that I don't
have at the time using the floppies?
Thanks,
Quang
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