Mailinglist Archive: opensuse-factory (279 mails)

[Sid Boyce <sboyce@xxxxxxxxxxxxxxxx>]

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

# tail /var/log/messages
Mar  9 16:03:11 tindog smartd[32275]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Mar  9 16:03:11 tindog smartd[32275]: Device: /dev/sda [SAT], 1 Offline
uncorrectable sectors
Mar  9 16:03:11 tindog smartd[32275]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 66 to 65
Mar  9 16:03:11 tindog smartd[32275]: Device: /dev/sdb [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 109 to 108
Mar  9 16:14:13 tindog kernel: dd_rescue[26757] trap divide error
ip:402918 sp:7fff5787c640 error:0 in dd_rescue[400000+6000]
Mar  9 16:16:35 tindog kernel: dd_rescue[26855] trap divide error
ip:402918 sp:7fff64f3d720 error:0 in dd_rescue[400000+6000]


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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