upgrade to 12.04 LTS vs fresh install questions

[Tom H]

On Sun, Oct 21, 2012 at 6:30 AM, Liam Proven <lproven at gmail.com> wrote:
> On 20 October 2012 23:25, Linda <haniganwork at earthlink.net> wrote:
>>
>> I have several machines that I can upgrade from 10.04 LTS or just do a fresh
>> install to move to 12.04 LTS.  In making my decission on whether to bother
>> trying to upgrade to the new version I was looking for opinions on two
>> questions?
>>
>> 1. the 10.04 LTS have ext3 filesystems, is it worth the extra effort to do
>> clean install and format the drives with ext4 file systems?
>>
>> 2. Some of these machines do not have network manager on them for 10.04 LTS
>> as all the network configuration was done by hand. I did a trial update on a
>> machine I had replaced with a new one and the upgrade to 12.04 LTS installs
>> network-manager but  it gives an error that it is incompatible with the
>> current version.  I removed network manager but you can no longer create a
>> resolv.conf by hand as it rewrites it at boot. I tried installing
>> gnome-network-admin to set the dns nameservers but it still losses the
>> nameservers on reboot. Would installing network-manager on the 10.04 LTS
>> machines before upgrade eliminate this issue?
>
> My personal opinion would be - no, it's not worth reformatting to
> ext4, but in this instance, it might well be worth reinstalling the
> newer LTS if you have the time & the inclination, especially given the
> network-manager problems.

It's not worth re-installing just to fix the network. You can control
the creation/recreation of "/etc/resolv.conf" via the
"domain-name-servers" setting in "/etc/dhcp/dhclient.conf".

If you really want ext4, you can upgrade ext3 to ext4.