From Debuntu

Mercurial or HG http://mercurial.selenic.com/wiki/ is a distributed VCS.

Issues

unknown bundle compression type

$ hg push
pushing to https://myrepohost.com/myproject/
http authorization required
realm: HG repos
user: username
password:
searching for changes
unknown bundle compression type

This issue happens when you are trying to commit with a client that runs version 0.9 while the server is 1.X . The fix is to upgrade to a newest version. On Debian Etch, you might want to use Debian Backport:

* http://packages.debian.org/etch-backports/i386/mercurial/download
* http://packages.debian.org/etch-backports/all/mercurial-common/download

References/Documentations

* http://hgbook.red-bean.com/read/preface.html
* http://mercurial.selenic.com/wiki/Tutorial