On 2013-12-02 5:55 PM, Kevin Korb <k...@sanitarium.net> wrote:
mount/dev/sda3 /mnt/gentoo/
You might have to specify more options here. Check what they are
before you shut down.
Ok, thinking about this more... since booting off a liveCD means I'm not
using the systems fstab, so I have to specify the filesystem too?
/ is ext3, so just use the same options as in fstab:
mount -o noatime /dev/sda3 /mnt/gentoo/ ?
Or do I need to specify the filesystem type?
mount -t ext3 -o noatime /dev/sda3 /mnt/gentoo/ ?
Hmmm... and any concerns about the filesystem for /usr changing from
reiserfs to ext3?
- --numeric-ids won't matter if rsync isn't networking but it is an
important one to know about.
Someone on the gentoo list claimed that because when booting from a
liveDVD you're essentially accessing the filesystem from 'another
system', that it was (possibly very) important to use --numeric-ids,
someone else then backed him up, and no one has said anything to the
contrary, so... are you sure?
Doesn't matter though, since it can't hurt anything, I'll always use it
regardless... ;)
ext[34] can remember acl as a default mount option. I have no idea if
reiserfs can do that or not and I recommend against using reiserfs at all.
I know, but this system was built over 8 years ago (when gentoo still
recommended reiserfs), and runs like a champ, so no desire to 'fix what
ain't broke'... anyway, acls are not enabled on it, so no worries...
;)
For Gentoo if you don't have USE=caps or USE=caps-ng set then you
probably don't have and xattrs in /usr
emerge --info shows neither:
USE="3dnow acl amd64 bash-completion berkdb bzip2 cli cracklib crypt
curl cxx dovecot-sasl dri fam fortran gd gdbm iconv mmx modules mudflap
multilib ncurses nls nptl openmp pam pcre readline sasl session snmp sse
sse2 ssl tcpd truetype unicode vhosts xml zlib"
So, no -X...
That command will not list symlinks. Anything it lists is a hard link.
Weird, you're right... dunno how I confused myself there...
- -H is only hard links. Symbolic links are handled in -a.
Ok, good, thanks, definitely want -H......
If you want to watch the --progress output then -P is a perfectly fine
shortcut for it. -p is --perms which is unrelated and part of -a.
Gotcha, thanks...
So, to be safe, use --numeric-ids...?
It won't hurt. It is just extra typing but it could be considered to
be a good habit for when it does matter.
Understood... and since it can't hurt anything, but can prevent serious
problems... :)
One more thing I didn't mention before...
Since /usr is pretty static you could "prime the copy" by doing the
rsync initially to /usr.new while the system is running. Then you
would really only have an mv and and fstab edit to do from your live
environment. You could probably even do those right before rebooting
if you are careful.
Even on something more dynamic like /home you can still do an initial
copy then update it from the live environment.
Ok, so... if I wanted to do this, would I need to add anything to the
rsync command on the subsequent run(s)?
So, looks like the command I'll be using:
rsync -avHP --numeric-ids /mnt/gentoo/oldusr/ /mnt/gentoo/usr/
Thanks very much Kevin for your time and help...
--
Best regards,
*/Charles/*
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