Welcome to the Reiser4 Wiki, the Wiki for users and developers of the ReiserFS and Reiser4 filesystems.
For now, most of the documentation is just a snapshot of the old Namesys site (archive.org, 2007-09-29).
There was also a Reiser4 Wiki (archive.org, 2007-07-06) once on pub.namesys.com.
Reiserfsprogs
From Reiser4 FS Wiki
The tools to maintain a ReiserFS (Reiser v3) filesystem are called reiserfsprogs and can be found on the openSUSE Build Service. If your distribution does not ship a pre-compiled package, we have to build this manually:
sudo apt-get install uuid-dev # Debian, Ubuntu sudo yum install libuuid-devel # Fedora wget https://api.opensuse.org/public/source/filesystems/reiserfs/reiserfsprogs-3.6.21.tar.bz2 tar -xjf reiserfsprogs-3.6.21.tar.bz2 cd reiserfsprogs-3.6.21 ./configure --prefix=/opt/reiserfsprogs make && sudo make install