Comment 8 for bug 301289

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