[mythtv-users] MythTV Disaster Recovery

John Welch jrw3319 at gmail.com
Tue Nov 17 13:25:53 UTC 2009

On Tue, Nov 17, 2009 at 2:13 AM, Ian Barton <lists at manor-farm.org> wrote:

> John Welch wrote:
>> I'm almost embarrassed to post this because of some stupidity on my part
>> but here goes... Over the weekend I experienced a somewhat sudden and what
>> looks to be an unrecoverable hard drive crash on my boot / root drive on my
>> MythTV back-end system.  I had a fairly recent database back-up from when I
>> upgraded my system from 0.21 to 0.22 but unfortunately (and foolishly) I
>> left the backup not only on the back-end system, but also on the root drive
>> that crashed.  I dug around my other systems and I did manage to find a
>> previous database backup from earlier in the year when I did a hardware
>> upgrade.  Fortunately (I hope) I did not lose any of my active recordings
>> because they were being saved to either another local drive or an NFS mount
>> on my NAS server.
>> So, now I am trying to figure out how to proceed.  My first question is is
>> it worth it to even attempt to use the database backup from earlier in the
>> year?  The biggest thing I dread is re-setting up my channel lineups.  I
>> haven't done much with the channel setup since 0.20 / early 0.21 days, but I
>> remember it to be a fairly time-consuming, very much manual process.  Have
>> things improved in this area so that it would now be a trivial / painless
>> process?  I'm particularly interested in QAM channel scanning for the HDHR
>> and pcHD3000 tuners.
>>  Just a thought, but have you tried booting from a Live CD and trying to
> mount the crashed disk. You may be able to read /var/lib/mysql.
> Ian.
Thanks for the responses so far.   Hoping to get my new drive today, and
will be starting the rebuild process when it arrives.  I did try booting
from a live USB drive but the BIOS on the system isn't even recognizing the
drive anymore.  Also tried moving the drive to another system and booting
from the live USB drive there, but on this system I can't even get past POST
with the drive connected.  Still might try a few more things, but that's why
I said "what looks to be an unrecoverable hard drive crash" in my original

Definitely plan on adding scheduled backups to another system / drive.

Thanks again,
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