Another example. Use "server" image ubuntu-8.04.2-server-i386.iso to create "jeos" image. jeos-8.04.2-jeos-i386.iso file has 105644032 bytes, only 13738663 were downloaded from HTTP server, it is only 13% of the original iso size because these iso images "share" several files.
Details: $ zsync -i ubuntu-8.04.2-server-i386.iso http://psl.ic.cz/zsync/jeos-8.04.2-jeos-i386.iso.zsync #################### 100.0% 0.0 kBps DONE reading seed file ubuntu-8.04.2-server-i386.iso: ***************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************Read ubuntu-8.04.2-server-i386.iso. Target 87.0% complete. downloading from http://psl.ic.cz/zsync/jeos-8.04.2-jeos-i386.iso: #################--- 87.0%bad status code 404 #################--- 87.0% 0.0 kBps aborted failed to retrieve from jeos-8.04.2-jeos-i386.iso downloading from http://cdimage.ubuntu.com/jeos/releases/8.04.2/release/jeos-8.04.2-jeos-i386.iso: #################### 100.0% 482.0 kBps DONE verifying download...checksum matches OK used 91918336 local, fetched 13738663 $ ls -ltr jeos-* -rw-r--r-- 1 psl psl 105644032 2009-01-27 09:48 jeos-8.04.2-jeos-i386.iso -rw-r--r-- 1 psl psl 180811 2009-04-11 15:47 jeos-8.04.2-jeos-i386.iso.zsync -- No support for zsync at Ubuntu ISOs https://bugs.launchpad.net/bugs/301289 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs