To clarify: When I said:
: rsync a/ b/a : is supposed to do exactly the same thing as : rsync a b What I meant was: This: ************ rm -rf a b mkdir a b echo foo > a/tmp rsync -a a/ b/a ls -lR b which yields, for instance: b: total 4 drwxr-xr-x 2 randall randall 4096 Apr 5 14:06 a b/a: total 4 -rw-r--r-- 1 randall randall 4 Apr 5 14:06 tmp ************ is supposed to (and does) do exactly the same thing as: ************ rm -rf a b mkdir a b echo foo > a/tmp rsync -a a b ls -lR b which yields, for instance: b: total 4 drwxr-xr-x 2 randall randall 4096 Apr 5 14:07 a b/a: total 4 -rw-r--r-- 1 randall randall 4 Apr 5 14:07 tmp ************ so it's at least counter-intuitive for different results to occur when you happen to be using --dest-link, and this seems like a bug to me. In particular, I think folks using the syntax I was using will reasonably expect hard links to be made instead of copies. Agreement? Disagreement? R ----- Original Message ----- From: "Randall Cotton" <recot...@earthlink.net> To: <rsync@lists.samba.org> Sent: Monday, April 05, 2010 1:57 PM Subject: This is a bug, right? (--link-dest) : I had a heckuva time getting hard link snapshot backups to work. I traced : my troubles down to what appears to be an rsync bug: : : This works as expected (a hard link is made) : ************ : rm -rf a b : mkdir a b : echo foo > a/tmp : rsync -a a/ b/a.1 : rsync -a --link-dest=../a.1 a/ b/a : ls -i b/*/tmp : : the above yields, for example: : 4235593 b/a.1/tmp 4235593 b/a/tmp : ************ : : This does not (a copy is made instead of a hard link) : ************ : rm -rf a b : mkdir a b : echo foo > a/tmp : rsync -a a/ b/a.1 : rsync -a --link-dest=a.1 a b : ls -i b/*/tmp : : the above yields, for example: : 4235593 b/a.1/tmp 4235595 b/a/tmp : : ************ : : The only difference is running the second rsync without a "/" following : the source (adjusting other arguments accordingly). But my understanding : is that these are two ways of running rsync that should accomplish : precisely the same thing. : : That is: : : rsync a/ b/a : is supposed to do exactly the same thing as : rsync a b : : I happen to prefer the latter syntax, and that's apparently how I got into : trouble. : : Am I missing something here? Should I file a bug report? : : I tried this on several setups and got the same result, but for reference : here's one: : rsync v 3.0.6 on (stock) Ubuntu 9.10 : : -- : 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 -- 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
