Wiadomość napisana przez Mark Felder w dniu 16 sty 2014, o godz. 21:36:
> On Wed, Jan 15, 2014, at 23:11, Tim Kientzle wrote:
>> On Jan 14, 2014, at 6:47 AM, Mark Felder <f...@freebsd.org> wrote:
>>> I was recently talking to someone about how one would backup / restore
>>> ACLs reliably. I didn't see any mention of ACLs in the mtree man page
>>> and after a quick google I came upon this old mailing list post:
>>> http://lists.freebsd.org/pipermail/freebsd-hackers/2008-April/024173.html
>>> patch in list is here: http://heka.cenkes.org/sat/diffs/mtree_acl.diff
>>> I've mirrored it here: https://feld.me/freebsd/mtree_acl.diff
>>> This old patch appears to still apply cleanly. I hate to see a patch die
>>> and be forgotten.
>> One problem that ‘tar’ has addressed (inspired by Joerg Schilling’s
>> work on star) is to permit ACLs to be restored even if the user database
>> is out of date.
>> This is done by including a fourth field in each ACE with the
>> numeric user ID.
>> I suspect you want to do the same for mtree.  I thought
>> I remembered acl_to_text having an option to use
>> an extended text format, so it might be a trivial change.
> As long as it's not default. One of the most convenient ways to change a
> user's UID (or multiple users!) is to do an mtree backup, change
> UID/GID, and then re-apply mtree backup. Every file that the user(s)
> previously owned will be automatically changed to the new UID/GID for
> you :-)

I don't think the functionality above would interfere with that in any way.
The owner entries ("user:" for POSIX, "owner@" for NFSv4 ACLs) are stored
in a different way, and they never have the appended ID.

(Besides, why not just "find ./ -user XXX -print0 | xargs -0 chown YYY"?)

If you cut off my head, what would I say?  Me and my head, or me and my body?

freebsd-current@freebsd.org mailing list
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Reply via email to