Ubuntu
update-manager package

use of diff-algorithm

Asked by uhu

Binary package hint: update-manager

It's not a bug, but I was wondering whether anybody has thought of using a diff-algorithm for making updates, for example as described here:

 http://www.daemonology.net/bsdiff/
or
 http://www.daemonology.net/papers/thesis.pdf

I don't have any knowledge concerning this but perhaps the person writing the thesis.

I only ask because perhaps it is more economical just to transfer changes than the whole package, even for binary files.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.150.2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
Architecture: i386
Date: Tue Jun 7 05:36:17 2011
InstallationMedia: Lubuntu 11.04 "Natty Narwhal" - i386 (20101203)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=de_DE.utf8
 LANG=de_DE.utf8
 LC_MESSAGES=de_DE.utf8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

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This question was originally filed as bug #793844.

Revision history for this message
uhu (w2q) said : 		#1
Revision history for this message
mycae (mycae) said : 		#2

Yes, its called debdelta
http://debdelta.debian.net/

AFAIK there is no official debdelta archive.

Revision history for this message
a. Mennucc (mennucc1) said : 		#3

there is a blueprint to implement the debdelta-upgrade service in Ubuntu, at
https://blueprints.launchpad.net/ubuntu/+spec/foundations-o-debdelta

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