Mailinglist Archive: opensuse (4054 mails)
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Re: [SLE] problems with a newly created raid partition
- From: Con Hennessy <cp.hennessy@xxxxxxxxx>
- Date: Sun, 1 Jan 2006 19:15:48 +0000
- Message-id: <200601011915.49017.cp.hennessy@xxxxxxxxx>
On Sat December 31 2005 00:21, Carlos E. R. wrote:
> The Friday 2005-12-30 at 14:01 +0100, Per Jessen wrote:
> > >> warning: sh-2006: read_super_block: bread failed (dev md0, block 16,
> > >> size 4096) kernel: ReiserFS: md0: warning: sh-2021:
> > >> reiserfs_fill_super: can not find reiserfs on md0
> > >
> > > But those are warnings, not errors. What is the error you see when you
> > > boot and can not mount?
> >
> > Carlos, the last line is probably key:
> > "can not find reiserfs on md0"
>
> I saw it, but it is not conclusive. The thing is, a raid device (md0) can
> have a partition table and several partitions, or be directly formatted as
> reiserfs or whatever.
Yast2 Disk was used to make the RAID disk. It is supposed to be a reiserfs
disk but I'm not sure if that means each are done independently or ... ?
My partition table (create using "yast2 disk") has :
Device Boot Start End Blocks Id System
/dev/hda2 2469 3641 9422122+ f W95 Ext'd (LBA)
/dev/hda3 * 3642 9964 50789497+ 83 Linux
/dev/hda5 2469 2599 1052226 82 Linux swap / Solaris
/dev/hda6 2600 3641 8369833+ fd Linux raid autodetect
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 25 12568+ 83 Linux
/dev/hdc2 75001 116336 20833344 5 Extended
/dev/hdc3 26 75000 37787400 83 Linux
/dev/hdc5 75001 76974 994864+ 82 Linux swap / Solaris
/dev/hdc6 76975 93411 8284216+ fd Linux raid autodetect
And my /etc/raidtab is :
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hda6
raid-disk 0
device /dev/hdc6
raid-disk 1
> <5>ReiserFS: md0: found reiserfs format "3.5" with standard journal
>
> but if it had a partition table, the message would be different. Thus I
> need more information, the error messages, to decide.
>
> > I'm wondering if /dev/md0 really exists on that system?
I'm not 100% sure what I need to do to give you the answer to this.
Is the following what you want ?
$ ls -l /dev/md0
brw-rw---- 1 root root 9, 0 Jan 1 18:28 /dev/md0
CP Hennessy
> The Friday 2005-12-30 at 14:01 +0100, Per Jessen wrote:
> > >> warning: sh-2006: read_super_block: bread failed (dev md0, block 16,
> > >> size 4096) kernel: ReiserFS: md0: warning: sh-2021:
> > >> reiserfs_fill_super: can not find reiserfs on md0
> > >
> > > But those are warnings, not errors. What is the error you see when you
> > > boot and can not mount?
> >
> > Carlos, the last line is probably key:
> > "can not find reiserfs on md0"
>
> I saw it, but it is not conclusive. The thing is, a raid device (md0) can
> have a partition table and several partitions, or be directly formatted as
> reiserfs or whatever.
Yast2 Disk was used to make the RAID disk. It is supposed to be a reiserfs
disk but I'm not sure if that means each are done independently or ... ?
My partition table (create using "yast2 disk") has :
Device Boot Start End Blocks Id System
/dev/hda2 2469 3641 9422122+ f W95 Ext'd (LBA)
/dev/hda3 * 3642 9964 50789497+ 83 Linux
/dev/hda5 2469 2599 1052226 82 Linux swap / Solaris
/dev/hda6 2600 3641 8369833+ fd Linux raid autodetect
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 25 12568+ 83 Linux
/dev/hdc2 75001 116336 20833344 5 Extended
/dev/hdc3 26 75000 37787400 83 Linux
/dev/hdc5 75001 76974 994864+ 82 Linux swap / Solaris
/dev/hdc6 76975 93411 8284216+ fd Linux raid autodetect
And my /etc/raidtab is :
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 4
device /dev/hda6
raid-disk 0
device /dev/hdc6
raid-disk 1
> <5>ReiserFS: md0: found reiserfs format "3.5" with standard journal
>
> but if it had a partition table, the message would be different. Thus I
> need more information, the error messages, to decide.
>
> > I'm wondering if /dev/md0 really exists on that system?
I'm not 100% sure what I need to do to give you the answer to this.
Is the following what you want ?
$ ls -l /dev/md0
brw-rw---- 1 root root 9, 0 Jan 1 18:28 /dev/md0
CP Hennessy
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