Mailing List Archive: MythTV: Users

Moving from debian to ubuntu on master backend

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tmorch at gmail

Nov 22, 2009, 2:05 AM

Post #1 of 3 (384 views)
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Moving from debian to ubuntu on master backend

I'm planing on doing my first reinstall of my debian server for the last 6
years, as my current partition scheme is getting a bit to limited.

I also plan on upgrading to Ubuntu 9.10, as it seems like they have more
"new" stuff that I could potentialy use in my system (backend is used as
web, sip, mail, samba, webcontent filtering, and mythtv server).

The most critical component right now, that I'm a bit worried about, is
MythTV, The WAF will drop considerable, if our old recordings are lost.

Is there any precautions that I have to take?

Current setup is mythtv 0.21 fixes. Recording directories are on a seperate
drive, to the root partition, so they won't be deleted during the move.

I also plan on using a new drive for the root, so I still have my old
debian, if anything goes wrong.

Regards
Thomas

reidjr at btconnect

Nov 22, 2009, 3:56 AM

Post #2 of 3 (357 views)
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Re: Moving from debian to ubuntu on master backend [In reply to]

Thomas Mørch wrote:
> I'm planing on doing my first reinstall of my debian server for the
> last 6 years, as my current partition scheme is getting a bit to limited.
>
> I also plan on upgrading to Ubuntu 9.10, as it seems like they have
> more "new" stuff that I could potentialy use in my system (backend is
> used as web, sip, mail, samba, webcontent filtering, and mythtv server).
>
> The most critical component right now, that I'm a bit worried about,
> is MythTV, The WAF will drop considerable, if our old recordings are lost.
>
> Is there any precautions that I have to take?
>
> Current setup is mythtv 0.21 fixes. Recording directories are on a
> seperate drive, to the root partition, so they won't be deleted during
> the move.
>
> I also plan on using a new drive for the root, so I still have my old
> debian, if anything goes wrong.
>
> Regards
> Thomas
> ------------------------------------------------------------------------
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
I think the only critical thing is that you follow the backup and
restore database instructions. If you do a clean mythbuntu or UBuntu
9.10 install i THINK you will end up with a clean install of 0.22, which
your database backup will not be suitable for. You must ensure that you
only restore to the right version of the database, so either downgrade
the new database to a 0.21-fixes install restore and then upgrade, or
upgrade on the old install backup and then restore onto the new. The
only other gotcha may be that with multiple tuners, they may apear in a
diffrent order when you change/upgrade from Debian to Ubuntu, depending
on versions.
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mtdean at thirdcontact

Nov 22, 2009, 5:29 AM

Post #3 of 3 (360 views)
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Re: Moving from debian to ubuntu on master backend [In reply to]

On 11/22/2009 06:56 AM, John wrote:
> Thomas Mørch wrote:
>> I'm planing on doing my first reinstall of my debian server for the
>> last 6 years, as my current partition scheme is getting a bit to
>> limited.
>>
>> I also plan on upgrading to Ubuntu 9.10, as it seems like they have
>> more "new" stuff that I could potentialy use in my system (backend is
>> used as web, sip, mail, samba, webcontent filtering, and mythtv server).
>>
>> The most critical component right now, that I'm a bit worried about,
>> is MythTV, The WAF will drop considerable, if our old recordings are
>> lost.
>>
>> Is there any precautions that I have to take?
>>
>> Current setup is mythtv 0.21 fixes. Recording directories are on a
>> seperate drive, to the root partition, so they won't be deleted
>> during the move.
>>
>> I also plan on using a new drive for the root, so I still have my old
>> debian, if anything goes wrong.
> I think the only critical thing is that you follow the backup and
> restore database instructions. If you do a clean mythbuntu or UBuntu
> 9.10 install i THINK you will end up with a clean install of 0.22,
> which your database backup will not be suitable for. You must ensure
> that you only restore to the right version of the database, so either
> downgrade the new database to a 0.21-fixes install restore and then
> upgrade, or upgrade on the old install backup and then restore onto
> the new.

Right. Though, doing a full restore of the 0.21-fixes backup is fine.
But it's critical that you DROP the existing (0.22-fixes) database
before restoring the 0.21-fixes backup.

Don't do a partial restore--there's really no benefit to it (unless you
have a corrupt schema) and it's much more complex because of the version
change.

See http://www.mythtv.org/wiki/Database_Backup_and_Restore for more.

Mike
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