[CentOS-devel] Re: 4.4 -> 5.0 upgrade (considerations)

Tue Apr 17 21:42:47 UTC 2007
Scott Silva <ssilva at sgvwater.com>

Rodrigo Barbosa spake the following on 4/17/2007 12:31 PM:
> On Tue, Apr 17, 2007 at 12:16:50PM -0700, Scott Silva wrote:
>> Rodrigo Barbosa spake the following on 4/17/2007 12:00 PM:
>>>>> I'm working on a formula to enable a clean upgrade from 4.4 to 5.0.
>>>>> Unfortunately, not only we have a big glibc upgrade on our way, we
>>>>> also have some nasty package fragmentation. The best exemple
>>>>> is xorg-x11-libs, which was separated in several (10+, perhaps)
>>>>> packages.
>>>>> So far, I think the best plan is to create meta packages to solve
>>>>> this dependency hell. Lets call it meta-4.4to5.0-upgrade.noarch.rpm.
>>>>> This package should provide and requires the needed components.
>>>>> Unfortunatelly, this will probably change from system to system,
>>>>> which can become very nasty. In that case, we have two ways to procede:
>>>>> 1) A script that will create a package specific for that given
>>>>>   system
>>>>> 2) Several meta packages
>>>>> I'm kind of leaning toward the second option, with a super meta
>>>>> package that will require them all (in case someone want to
>>>>> make things simples at the cost of installing extra packages).
>>>>> Comments ? Suggestions ?
>>>> Are you looking for something otehr than anaconda for small memory or
>>>> something? I do not see live updates working for the faint of heart
>>>> from 4.4 -> 5.0 .
>>> Nah, mostly remote systems, hosted on datacenters or somewhere else.
>>> So far, the main problem I've encontered is really xorg. Go figure.
>> You can do remote anaconda installs using vnc. I have done it once or twice.
>> Now if you could do remote ssh based text installs, that would really rock!
> Humm, that really doesn't cover my needs, since it would need direct
> interaction with the hardware (or something nasty to give you an anaconda
> boot).
> []s
Not really. You can scp the pxe kernels onto the machine and add a boot stanza
 into grub to run them with all the necessary commands and addresses on the
command line. You just need a way to make sure you fix the grub boot back to
the new kernel after the install. I just found this howto to make a remote
install Cd, but with a little adjusting, you could get this working totally
remote, with a http install from anywhere in the world.


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