Debian

• UlfBartelt has an ugly hack of script to install debian into an uml. If you are able to understand debootstrap, you probably are able to build something better than this hack yourself, so the best suggestion seems to be: you try this (own code based on debootstrap) first and then let's compare the results... ;-)
• http://people.debian.org/%7Emdz/uml/
• A set of Debian Woody root images are posted here. Instructions can be found in the README and here.
• http://opencurve.org/~~sunny/debian3.0/debian_uml.html Debian UML
• http://www.huckstep.uklinux.net/mle/uml-woody.html - a debootstrap-based method
• http://uml.nagafix.co.uk/Debian-3.1/ - Debian 3.1 images (x86 and AMD64) updated weekly
• http://eggdrop.ch/texts/uml/ - Running Debian inside of Debian with User-Mode Linux (instructions and scripts to create root fs)

Fedora

• http://uml.nagafix.co.uk/ - Fedora Core 5 and 6 (x86 and AMD64) updated weekly
• http://myturl.com/000pz/ some info and pointer to download location (link dead)
• ftp://ftp.express.org/pub/uml/ FC1 server root filesystem
• http://www.stearns.org/uml-root/ FC3 i386, FC3 x86_64, and FC4 i386 root filesystems
• YumScript script used by Jed Reynolds

Gentoo

• hand tailored, no automagic install available from me (UlfBartelt), maybe some others have scripts...
• http://uml.nagafix.co.uk/Gentoo-2005.1/ - Gentoo 2005.1 images (x86, AMD64 and x86 SELinux) updated weekly.

Knoppix

• UserModeLinux for KNOPPIX

Mandrake

• Mandrake 9.2 UML image available at Nexedi: http://www.nexedi.org/sections/software/mandrake_uml_root_fi/view

RedHat

• RH9 server and workstation filesystems can be found over at usermodelinux.org. These are complete disk-images with a root partition and swap partition. There is also a shell script to get you up and running.
• Instructions for building your own RH9/RH8 partition are here (Written by Oleg Drokin)
• ftp://ftp.express.org/pub/uml/ has some RH9 stuff for you.
• Some of the RH9 filesystems where specifically targetted for i686s and users with lesser machines (ie AMDs & i586s) aren't able to use them. They get a SIGILL CMOV not supported by processor error.
• Another set of RH9 images can be found here. The instructions are here.

Slackware

• Slackware 9.1 courtesy of Giacomo Lozito
• see http://uml.datux.nl/ for a howto and other downloads.
• Slackware install without setup program: http://www.inreto.de/mkuml (Moved from http://www.tkn.tu-berlin.de/%7Eposch/resoa-uml.html) (see also mkuml in Tools)
• Zipslack file-system (based on Slackware 3.1) is posted here. Instructions can be found in the README, courtesy of Henrique Moreira.MD5SUM

• Slackware 10.1 and 10.2, 11.0 and 12.0 courtesy of David Houlden
• http://uml.nagafix.co.uk/ - Slackware 10.2 and 11 (x86 and AMD64 from Slamd64) updated weekly.

SuSE

• Now there is a good support from SuSe from Suse 9.0. This is a very good link at howto .... http://www.math.ucla.edu/~jimc/documents/uml-install-suse.html

?OS

• The last changes/updates in ?OS I noticed were arround summer 2003. Because ?OS's package manager ?PM really is interesting, I am thinking about converting my ?OS umls into something like (B)LFS plus ?PM. This is not really for daily use up to now but a nice piece for experimenting and learning. Comments and help both are welcome ;-) ... -- 2004-03-10, UlfBartelt

Openswan testing root

• UML Root filesystems - Openswan does nightly regression testing in a UML environment. For this, we've created a small (< 128MB) root filesystem, designed for debugging network applications. This is a copy of the system we use for the nightly builds, so you can replicate our environment for testing your own extensions to Openswan, before submitting patches.

Others have also used this as a base for building embedded Openswan based boxes.

Building root filesystems

If you wish to build your own, see BuildingRootFileSystems.