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## xz compression in Squeeze (smaller ISO size)

Tips and Instructional topics. Not for support questions.
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### xz compression in Squeeze (smaller ISO size)

by dzz » Fri Oct 26, 2012 4:32 pm

xz compession, supported in wheezy/sid, was discussed a while back. Some users may not know that newer squashfs-tools is available in squeeze-backports. With that and => 2.6.38 kernel "xz" compression works fine for a Squeeze snapshot.
Benchmark test here, squashfs from the same base filesystem:
640.8 MB (default gzip)
560.7 MB (xz)
Leaves quite a bit of room for more apps than was possible before
Make sure this line exists in sources.list :

Code: Select all
  `deb http://backports.debian.org/debian-backports squeeze-backports main`

Code: Select all
  `apt-get update
  # check first that -686-pae will run on target machines, -486 and others are available
  # substitute apt-get for corresponding aptitude command if preferred
  apt-get install -t squeeze-backports linux-image-686-pae
  apt-get install -t squeeze-backports linux-headers-686-pae
  apt-get install -t squeeze-backports squashfs-tools
  `

If it runs good, purge the standard squeeze kernel and save more space for snapshot
More recent snapshot versions https://github.com/fsmithred/refracta support xz

dzz
  Posts: 647
  Joined: Wed Apr 27, 2011 11:53 am
  Location: Devon, England

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