[NBLUG/talk] Raid Help

Walter Hansen gandalf at sonic.net
Tue Jan 6 16:07:00 PST 2004


now I can't even seem to make a boot disk. Any ideas?

# mkbootdisk --device /dev/fd0 2.4.19-Tekram
Insert a disk in /dev/fd0. Any information on the disk will be lost.
Press <Enter> to continue or ^C to abort:
mount: fs type msdos not supported by kernel
mount: fs type vfat not supported by kernel



> System RH 8.0
>   Dual SCSI 18GB drives in Raid 1 array (ID 0,1)
>
> Drive 1 failed.
>
> I noticed that drive 0 had problems as well by the IBM/Hatachi testing
> program.
>
> I removed drive 1 and sent it in. Got the factory replacement and
> installed it.
>
> Using fdisk I partitioned the drive the same as drive 0. Except I didn't
> use the Win95 Ext'd (LBA) that redhat had apparantly set, instead using
> the normal Extended partitiion.
>
> I then used raidhotadd to re-construct the array.
>
> Now I'm trying to remove Drive 0 to send it in for replacement and I've
> found that it won't just boot on Drive 1. It hangs after the Beep before
> loading Grub.
>
> I did check and had forgot to set the boot partition on the new Drive 1,
> so I set it and then re-booted with the same results.
>
> I'm going to be looking into this myself today, but I thought someone
> might know what was going on with this or be able to point me in the
> right direction. I've included all the relavant files and information I
> can think of below:
>
> # mount
> /dev/md1 on / type ext3 (rw)
> none on /proc type proc (rw)
> /dev/md0 on /boot type ext3 (rw)
> none on /dev/pts type devpts (rw,gid=5,mode=620)
> /dev/md2 on /home type ext3 (rw)
> none on /dev/shm type tmpfs (rw)
> /dev/md3 on /tmp type ext3 (rw)
> /dev/md4 on /usr type ext3 (rw)
> /dev/md5 on /var type ext3 (rw)
>
>
> Drive 0(fdisk):
> Disk /dev/sda: 255 heads, 63 sectors, 2231 cylinders
> Units = cylinders of 16065 * 512 bytes
>
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1   *         1        13    104391   fd  Linux raid autodetect
> /dev/sda2            14      1033   8193150   fd  Linux raid autodetect
> /dev/sda3          1034      1288   2048287+  fd  Linux raid autodetect
> /dev/sda4          1289      2231   7574647+   f  Win95 Ext'd (LBA)
> /dev/sda5          1289      1415   1020096   fd  Linux raid autodetect
> /dev/sda6          1416      1480    522081   fd  Linux raid autodetect
> /dev/sda7          1481      1513    265041   fd  Linux raid autodetect
> /dev/sda8          1514      1526    104391   fd  Linux raid autodetect
>
> Drive 1(fdisk):
> Disk /dev/sdb: 255 heads, 63 sectors, 2231 cylinders
> Units = cylinders of 16065 * 512 bytes
>
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sdb1   *         1        13    104391   fd  Linux raid autodetect
> /dev/sdb2            14      1033   8193150   fd  Linux raid autodetect
> /dev/sdb3          1034      1288   2048287+  fd  Linux raid autodetect
> /dev/sdb4          1289      2231   7574647+   5  Extended
> /dev/sdb5          1289      1415   1020096   fd  Linux raid autodetect
> /dev/sdb6          1416      1480    522081   fd  Linux raid autodetect
> /dev/sdb7          1481      1513    265041   fd  Linux raid autodetect
> /dev/sdb8          1514      1526    104391   fd  Linux raid autodetect
>
>
> # cat /etc/raidtab
> raiddev             /dev/md1
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda5
>     raid-disk     0
>     device          /dev/sdb5
>     raid-disk     1
> raiddev             /dev/md0
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda1
>     raid-disk     0
>     device          /dev/sdb1
>     raid-disk     1
> raiddev             /dev/md2
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda8
>     raid-disk     0
>     device          /dev/sdb8
>     raid-disk     1
> raiddev             /dev/md3
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda6
>     raid-disk     0
>     device          /dev/sdb6
>     raid-disk     1
> raiddev             /dev/md4
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda2
>     raid-disk     0
>     device          /dev/sdb2
>     raid-disk     1
> raiddev             /dev/md5
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda3
>     raid-disk     0
>     device          /dev/sdb3
>     raid-disk     1
> raiddev             /dev/md6
> raid-level                  1
> nr-raid-disks               2
> chunk-size                  64k
> persistent-superblock       1
> nr-spare-disks              0
>     device          /dev/sda7
>     raid-disk     0
>     device          /dev/sdb7
>     raid-disk     1
>
> # cat /proc/mdstat
> Personalities : [raid1]
> read_ahead 1024 sectors
> md0 : active raid1 sdb1[1] sda1[0]
>       104320 blocks [2/2] [UU]
>
> md4 : active raid1 sdb2[1] sda2[0]
>       8193024 blocks [2/2] [UU]
>
> md5 : active raid1 sdb3[1] sda3[0]
>       2048192 blocks [2/2] [UU]
>
> md1 : active raid1 sdb5[1] sda5[0]
>       1020032 blocks [2/2] [UU]
>
> md3 : active raid1 sdb6[1] sda6[0]
>       521984 blocks [2/2] [UU]
>
> md6 : active raid1 sdb7[1] sda7[0]
>       264960 blocks [2/2] [UU]
>
> md2 : active raid1 sdb8[1] sda8[0]
>       104320 blocks [2/2] [UU]
>
> unused devices: <none>
>
>
>
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