Thanks Eric
> >
> > Hi Eric, thanks for your reply. If you have a few minutes, can you read thru
> > this and make any comments on my situation/reasoning behind fixing it.
>
> Hm, I can half-answer some of your questions, but I don't know for sure
> on others.
>
> So, I'd suggest that you distill your last message down into the
> fundamental questions and send it back to the list, but here are a few
> pieces of information:
>
Cheers. I'll post this back to the list for now. I'll sort out those other
questions later :)
>
> xfsdump (at least on linux) only operates on a mounted filesystem.
er.. but i can't mount the xfs filesystem due to the 512byte blocksize....
>
> xfsdump can be used to transfer from linux <-> irix.
> 4k blocksize should work fine under Irix
> see "man xfsdump" for the "-b blocksize" option.
ok. This is what i get (all you non-linux types forgive the linux notations -
i've read quite a bit of the news groups :)
/dev/hdb is an 9 GB IDE disk, contents (currently) ext2 however it's not
mounted,
and it's ready to be blanked by whatever happens next
Disk /dev/hdb: 128 heads, 63 sectors, 782 cylinders
Units = cylinders of 8064 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 740 2983648+ 83 Linux
/dev/hdb2 741 782 169344 82 Linux swap
/dev/sda is a 4 GB SCSI disk from the Octane.
fdisk or sda
----- partitions -----
Device Info Start End Sectors Id System
/dev/sda1 boot 245 8154 8622303 a SGI xfs
/dev/sda2 swap 4 244 262144 3 SGI raw
/dev/sda9 0 3 4096 0 SGI volhdr
/dev/sda11 0 8154 8888543 6 SGI volume
----- bootinfo -----
Bootfile: /unix
----- directory entries -----
0: sgilabel sector 2 size 512
1: ide sector 3 size 268288
2: sash sector 527 size 268288
3: IP30prom sector 1051 size 913408
Fair enough. OK. So we attempt to 'dump' the filesystem from my unreadable
(512bytes blocksize) xfs disk (i'm deliberately not using the word partition as
i
normally would) to the IDE drive (not currently xfs, but ext2). Neither are
mounted :
xfsdump -f /dev/hdb1 -b 512 /dev/sda1
after being prompted for a label i get the following error :
xfsdump: ERROR: /dev/sda1 does not identify a file system
which suggests to me that xfsdump cannot read the filesystem due to this 512byte
!= 4096byte incompatability with the SGI Octane disk and the linux XFS driver.
I get this also with the following command line variations :
xfsdump -f /dev/hdb1 -b 512 /dev/sda
xfsdump -f /dev/hdb1 /dev/sda
xfsdump -f /dev/hdb1 /dev/sda1
Could anyone offer any help/advice.
Best regards
Rob Fielding
rob@xxxxxxxx
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