On 2013-12-03 8:19 AM, Tanstaafl <tansta...@libertytrek.org> wrote:
Current command I'll be using:
rsync -avHP --numeric-ids /mnt/gentoo/oldusr/ /mnt/gentoo/usr/
I had initially been planning on just using cp, trying now to remember
why I decided on using rsync - I think it was someone here who said it
would be better.
Anyway, not to start a holy war about which is better, rsync or cp, but
someone on the rsync list just posted that using rsync for this was
really not the best use of rsync, and that cp was much better suited
(would be much faster for one thing, and would not suffer the same
potential problem of running out of memory because of too many hard
links for another), and I think I agree with them...
<sigh>
So, can someone confirm that this command:
cp -ax /usr/. /usr.tmp/.
would accomplish the same goal?
I've never used the -x option with cp... what exactly is meant by 'stay
on same filesystem'? Should I use this seeing as current /usr is
reiserfs on LVM, and / is ext3 on simple partition - ie, *not* the 'same
filesystem'?
Is the only real advantage of using rsync to do this it's ability to
pick up where it left off if there is a problem?
If so, then I imagine I could use the cp command first on the live
system to 'prime' it, then use the rsync command after booting to the
liveCD to quickly confirm it - but if there were no issues during the
initial cp, and nothing changes in between, there shouldn't really be
any difference to copy anyway?
Sorry for all the questions, I promise this will be the last one on this
subject...
