当我使用Unison同步两个文件夹时，只有一个根似乎受到影响。 以下是我认为有必要弄清楚为什么它工作的所有信息。
我在用着
$ unison -version unison version 2.27.57 从Ubuntu储存库。
我的笔记本电脑：
$ echo $UNISONLOCALHOSTNAME worklaptop $ pwd /home/userfoo $ ls -lAR .unison* .unison: total 8 drwxr-xr-x 2 userfoo userfoo 4096 2010-04-26 11:39 backups -rw-r--r-- 1 userfoo userfoo 231 2010-04-26 11:38 default.prf .unison/backups: total 0 .unisonroot: total 0 $ cat .unison/default.prf # Roots of the synchronization root = /home/userfoo/.unisonroot root = ssh://devel//home/userbar/.unisonroot path = * backuplocation = central backupdir = /home/.unison/backups backupprefix = $VERSION.bak $ mkdir .unisonroot/aDirectoryFrom-$UNISONLOCALHOSTNAME $ echo something >.unisonroot/aFileFrom-$UNISONLOCALHOSTNAME $ ls .unisonroot/ aDirectoryFrom-worklaptop aFileFrom-worklaptop
和我想要同步的Ubuntu服务器：
$ echo $UNISONLOCALHOSTNAME workcmpuserbardevel $ pwd /home/userbar $ ls -lAR .unison* .unison: total 4 drwxr-xr-x 2 userbar userbar 4096 2010-04-26 11:38 .unison .unison/.unison: total 0 .unisonroot: total 0 $ mkdir .unisonroot/aDirectoryFrom-$UNISONLOCALHOSTNAME $ echo something >.unisonroot/aFileFrom-$UNISONLOCALHOSTNAME $ ls .unisonroot/ aDirectoryFrom-workcmpuserbardevel aFileFrom-workcmpuserbardevel
我执行同步同步：
$ echo $UNISONLOCALHOSTNAME worklaptop $ unison Contacting server... Connected [//worklaptop//home/userfoo/.unisonroot -> //workcmpuserbardevel//home/userbar/.unisonroot] Looking for changes Warning: No archive files were found for these roots, whose canonical names are: /home/userfoo/.unisonroot //workcmpuserbardevel//home/userbar/.unisonroot This can happen either because this is the first time you have synchronized these roots, or because you have upgraded Unison to a new version with a different archive format. Update detection may take a while on this run if the replicas are large. Unison will assume that the 'last synchronized state' of both replicas was completely empty. This means that any files that are different will be reported as conflicts, and any files that exist only on one replica will be judged as new and propagated to the other replica. If the two replicas are identical, then no changes will be reported. If you see this message repeatedly, it may be because one of your machines is getting its address from DHCP, which is causing its host name to change between synchronizations. See the documentation for the UNISONLOCALHOSTNAME environment variable for advice on how to correct this. Donations to the Unison project are gratefully accepted: http://www.cis.upenn.edu/~bcpierce/unison Press return to continue.[<spc>] Waiting for changes from server Reconciling changes local workcmps... dir ----> aDirectoryFrom-worklaptop [f] file ----> aFileFrom-worklaptop [f] Proceed with propagating updates? [] y Propagating updates UNISON 2.27.57 started propagating changes at 11:49:14 on 26 Apr 2010 [BGN] Copying aDirectoryFrom-worklaptop from /home/userfoo/.unisonroot to //workcmpuserbardevel//home/userbar/.unisonroot [BGN] Copying aFileFrom-worklaptop from /home/userfoo/.unisonroot to //workcmpuserbardevel//home/userbar/.unisonroot [END] Copying aDirectoryFrom-worklaptop [END] Copying aFileFrom-worklaptop UNISON 2.27.57 finished propagating changes at 11:49:14 on 26 Apr 2010 Saving synchronizer state Synchronization complete (2 items transferred, 0 skipped, 0 failures)
然后检查计算机上的.unisonroot目录，我开始从以下位置进行同步：
$ ls .unisonroot/ aDirectoryFrom-worklaptop aFileFrom-worklaptop
在服务器上：
$ echo $UNISONLOCALHOSTNAME workcmpuserbardevel $ ls .unisonroot/ aDirectoryFrom-worklaptop aFileFrom-worklaptop aDirectoryFrom-workcmpuserbardevel aFileFrom-workcmpuserbardevel
从上面可以看出，在.unisonroot服务器上，笔记本电脑.unisonroot的内容没有改变。 理想的结果是，这两个文件夹将会是相同的，保持两个根的内容的联合。