-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Normally, I would say that --checksum is actually slower than just letting rsync re-copy everything and therefore is almost always the wrong thing to do. However, in this case, you really don't want to overwrite the running OS even with files that are essentially the same. So, if the system is running from that storage then --checksum might actually be useful.
On 04/22/2015 01:59 AM, Hendrik Visage wrote: > On Wed, Apr 22, 2015 at 1:03 AM, James Moe <ji...@sohnen-moe.com> > wrote: Hello, opensuse 13.2 linux v3.16.7-7-desktop x86_64 rsync > v3.1.1 > > I used rsync to copy /usr/ to another volume with these options: > --recursive --one-file-system --links --stats --itemize-changes > --quiet --delete --times After I had modified the system to use the > new /usr volume, I realized I should have added: --perms --owner > --group --executability > > So the target volume has everything set as "root root", and useful > bits like the SetUID mode are missing. > > Is there a way to use rsync to restore only the > permissions/owner/user and mode flags on the target volume from > the source volume? > >> *If* their sizes and times match, then I believe rsync does only >> the permissions/etc. changes with the -a option. However, I got >> into the tendency when doing these type of things, to use the >> -c/--checksum option, that way rsync makes sure the files haven't >> changed and will copy/update/etc. > > >> -- Please use reply-all for most replies to avoid omitting the >> mailing list. To unsubscribe or change options: >> https://lists.samba.org/mailman/listinfo/rsync Before posting, >> read: http://www.catb.org/~esr/faqs/smart-questions.html - -- ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ Kevin Korb Phone: (407) 252-6853 Systems Administrator Internet: FutureQuest, Inc. ke...@futurequest.net (work) Orlando, Florida k...@sanitarium.net (personal) Web page: http://www.sanitarium.net/ PGP public key available on web site. ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlU3Sn0ACgkQVKC1jlbQAQdzWACgqfSbexxajCMHwW9Uxu5KjWLS 8BAAoJmil6glPCitr1NbUHVwspjtOxjN =H/dh -----END PGP SIGNATURE----- -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html