[mythtv-users] Upgrade MythBuntu 12.04 32-bit to 14.04 64-bit?

[Hika van den Hoven]

Hoi Hika,

Tuesday, April 22, 2014, 10:53:55 PM, you wrote:

> Hoi Will,

> Tuesday, April 22, 2014, 10:40:01 PM, you wrote:

>> Hi folks,

>> I've been running a 32-bit version of MythBuntu because I have about
>> 1.5GB of RAM usable in my system (512MB reserved for video).  I recently
>> ran into the dreaded "NVRM: os_schedule: Attempted to yield the CPU"
>> hang.  I thought I fixed it by adjusting the vmalloc
>> <http://www.mythtv.org/wiki/Common_Problem:_vmalloc_too_small>
>> parameter, but apparently it can still happen.   Once in a few months is
>> still too often for me.

>> Anyway, I've got a 4GB set of RAM on the way and I figure it may be time
>> to migrate to a 64-bit version of Mythbuntu.   I've heard that an
>> in-place upgrade from 32-bit to 64-bit is a bad idea
>> <http://users.digitalkingdom.org/~rlpowell/hobbies/debian_arch_up/index.html>,
>> but what I'm wondering is if I upgrade from 12.04 to 14.04, can I switch
>> from 32-bit to 64-bit at the same time?   Or is that an even *worse*
>> idea than the above-described switch from 32 to 64?

>> I was able to do an upgrade install directly from 10.10 to 12.04 with
>> very little trouble, so I'm feeling sort of lucky.   Obviously, I'll
>> have a bare-metal disaster recovery backup before proceeding.  But
>> before I give it a go, has anybody else attempted such a switch?   And
>> if so, are there any special caveats I should be aware of?

>> The reason I'm looking to do an upgrade is that I've made a number of
>> OS-level tweaks over the years, and I'd sort of like to retain those, as
>> opposed to doing a clean install and Mythtv database restore.


>> Thanks!
>> -WD

> I don't know if it is possible, but I am very sure that it would be
> inviting trouble. The differences go very deep into your system.
> Install the new system on another drive or partition and then move
> over the database. If you keep the old installation around, you can
> check out your old configuration while fine-tuning.

Extra plus if you do it this way and only when you don't need the
machine is that you can keep using the old install until you are
satisfied. Then do a final database move.

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

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