Mailinglist Archive: opensuse-factory (279 mails)

[Sid Boyce <sboyce@xxxxxxxxxxxxxxxx>]

Sid Boyce wrote:
> Peter Poeml wrote:
> > On Mon, Mar 09, 2009 at 01:35:19PM +0000, Sid Boyce wrote:
> > > I have a suspicion that the badblocks on the source drive is causing a
> > > problem. When I used dd, I perhaps should have used the "noerror" option
> > > then do xfs_repair.
> > > Thanks, guys, I shall have another look.
> > > Regards
> > > Sid.
> > For disks with bad blocks, you usually want to use 'ddrescue' instead of
> > dd. It tries harder to get what's readable, doesn't give up and doesn't
> > need manual intervention as dd.
> >
> > (rsync to grab files, ddrescue to grab a (broken) disk image for further
> > processing)
> >
> > Peter
>
> I think I have a hardware problem elsewhere - CPU/memory, dd_rescue
> fails with a floating point exception.
> # dd_rescue /dev/sda /dev/sdc -b 1G -A
> dd_rescue: (info): ipos:         0.0k, opos:         0.0k, xferd:
>   0.0k
>                    errs:      0, errxfer:         0.0k, succxfer:
>   0.0k
>              +curr.rate:        0kB/s, avg.rate:        0kB/s, avg.load:
>  0.0%
> Floating point exception

This worked:-
dd if=/dev/sda of=/dev/sdc bs=1G conv=noerror
When dd completed, I did "xfs_admin -U generate /dev/sdc1" to change the
uuid, then xfs_repair and I can now mount /dev/sdc1.
Altered /etc/fstab and /boot/grub/menu.lst. Hoping to boot up on it
tomorrow - may be some grub work still needed.
Ordered new hardware to fix the floating point exception problem.
Regards
Sid.
-- 
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

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