[CentOS] Re: dying hd on live legacy system...

Fri Apr 25 18:16:46 UTC 2008
Scott Silva <ssilva at sgvwater.com>

on 4-25-2008 10:35 AM Jason Pyeron spake the following:
>> -----Original Message-----
>> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>> Behalf Of Jeff Larsen
>> Sent: Friday, April 25, 2008 1:16 PM
>> To: CentOS mailing list
>> Subject: Re: [CentOS] dying hd on live legacy system...
>> On Fri, Apr 25, 2008 at 10:38 AM, Jason Pyeron <jpyeron-Zhu2GTxvAjk at public.gmane.org> wrote:
>>> We have an old 3.x server whose hd is dying (kernel: hda:
>> dma_timer_expiry:
>>>  dma status == 0x61) and accessing certain files just crashes the system
>> with
>>>  a reboot.
>>>  We have moved as many files to a nfs server as we could so simply.
>>>  The system has been heavily modified (all using rpms) from baseline.
>>>  What is the most practical method to replace the hard drive?
>> Install another drive (same size or larger), boot from CD in rescue
>> mode and use the dd utility to copy the old drive image to the new
>> disk (example: dd if=/dev/hda of=/dev/hdb). However, the failing
>> hardware could make this problematic. Then remove the dying disk and
>> install the new disk on the cable where the old disk was so that the
>> new disk is now /dev/hda.
> Tried this, I should have been more clear above. When I access certain
> sectors the machine reboots.
> Ideas on how to do the duplication in this scenario?
>> If you are lucky enough to succeed consider mirroring with Linux
>> software RAID or at least make a full backup.
Did you try ddrescue?

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