Re: Please help: New system with old EVMS+BBR drives ?

Anthony Mutiso <[email protected]> Mon, 24 Aug 2009 10:24:51 -0600
Newsgroups gmane.linux.evms.devel
Message-ID <[email protected]>
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Andrew Schulman wrote:
>> I have a broken old system with 2x 250GB drives, in raid 1, with BBR on it.
>> Since the old system was a very trimmed down gentoo I couldn't boot it 
>> on other hardware, so I tried to recover the drives with a fresh debian 
>> etch install.
>>
>> But now I can't get it to work. I compiled my own kernel (2.6.15.7), 
>> patched it according to the installation instructions, but it ends 
>> either of 2 ways:
>> - If I try to activate the volumes I get an error in EVMS, and some 
>> notices from devicemapper, saying failed to insert target (bbr)
>> - Or I just can't see any SATA disks at all (system is on a IDE drive so 
>> that boots fine)
>>
>> Can anyone tell me which distro/setup still supports EVMS+BBR ?
>> If not, is there another way (without evms) to recover the data from 
>> those disks ?  It contains my complete photo collection for almost over 
>> 10 years, and it would be an emotional disaster to loose all those pictures.
>>     
>
> Distros and kernels that support EVMS are becoming scarce.  Sadly, it's the
> death spiral of EVMS.
>
> The last I looked, SystemRescueCd (http://www.sysresccd.org/Main_Page)
> supported EVMS.  Not sure about BBR, though.  IIRC there's a kernel module,
> dm_bbr, that you have to build and insert in order to use BBR?
>
>   
When migrating my Gentoo systems away from EVMS to plain old mdadm
and/or LVM2 I used older Gentoo Live book CD's that worked just great.
They had both EVMS and LVM2 working.

You can find a live-cd in your favorite Gentoo Mirror
<http://www.gentoo.org/main/en/mirrors2.xml>'s /releases/ folder.

> I don't think there's any way to read those drives except by EVMS+BBR.
> However, I don't see any reason that you shouldn't be able to build a
> kernel to do that, as long as you have the EVMS packages.  They're gone
> from the Debian archives now, but are still available-- let us know if you
> need them.
>
> Andrew.
>
>
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Andrew Schulman wrote:
<blockquote cite="mid:[email protected]"
 type="cite">
  <blockquote type="cite">
    <pre wrap="">I have a broken old system with 2x 250GB drives, in raid 1, with BBR on it.
Since the old system was a very trimmed down gentoo I couldn't boot it 
on other hardware, so I tried to recover the drives with a fresh debian 
etch install.

But now I can't get it to work. I compiled my own kernel (2.6.15.7), 
patched it according to the installation instructions, but it ends 
either of 2 ways:
- If I try to activate the volumes I get an error in EVMS, and some 
notices from devicemapper, saying failed to insert target (bbr)
- Or I just can't see any SATA disks at all (system is on a IDE drive so 
that boots fine)

Can anyone tell me which distro/setup still supports EVMS+BBR ?
If not, is there another way (without evms) to recover the data from 
those disks ?  It contains my complete photo collection for almost over 
10 years, and it would be an emotional disaster to loose all those pictures.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
Distros and kernels that support EVMS are becoming scarce.  Sadly, it's the
death spiral of EVMS.

The last I looked, SystemRescueCd (<a class="moz-txt-link-freetext" href="http://www.sysresccd.org/Main_Page">http://www.sysresccd.org/Main_Page</a>)
supported EVMS.  Not sure about BBR, though.  IIRC there's a kernel module,
dm_bbr, that you have to build and insert in order to use BBR?

  </pre>
</blockquote>
When migrating my Gentoo systems away from EVMS to plain old mdadm
and/or LVM2 I used older Gentoo Live book CD's that worked just great.
They had both EVMS and LVM2 working. <br>
<br>
You can find a live-cd in your favorite <a
 href="http://www.gentoo.org/main/en/mirrors2.xml">Gentoo Mirror</a>'s
/releases/ folder.<br>
<br>
<blockquote cite="mid:[email protected]"
 type="cite">
  <pre wrap="">I don't think there's any way to read those drives except by EVMS+BBR.
However, I don't see any reason that you shouldn't be able to build a
kernel to do that, as long as you have the EVMS packages.  They're gone
from the Debian archives now, but are still available-- let us know if you
need them.

Andrew.


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