Jim's userfs homepage
Have you ever need to write a filesystem? Have you ever found out, that it's
possible to write filesystems in user-space? That's why userfs is here...
Userfs allows you to write user-level filesystems in Linux. The original author
of this project is Jeremy Fitzhardinge. You can still find some interesting
information about userfs on his
The userfs project started quite a long time ago, so now there were some activities
to update the code for kernel 2.2.x.
Michael McCormack made userfs version with
kernel 2.2.x support. You can find this version on his
I got involved into this, because I urgently needed a possibility to write
the filesystems in user-space. I made a patch for Mike's kernel 2.2.x version
of userfs, allowing to compile users with glibc.
New: I merged the Mike's patch and my glibc patch into the latest version
of userfs I found on internet (userfs-0.9.6). This version is not ready yet, though.
Any C++ hacker is invited to repair some sample filesystems to get them compile.
(Sorry, I hate C++). When this will be ready, we can let it release as userfs-0.9.7.
- Kernel 2.2.x support
- glibc support
- more sample filesystems included
- lwp library again included
- genser part compiles
- kernel module userfs.o compiles
- mount utils compile - muserfs, um
- c++ library compiles - some warnings still by compilation occure
- pure c sample filesystems should work
- Repair sample filesystems using the c++ lib
- Remove warnings by c++ lib compilation
- Test it in libc systems, if problems occure, create the #ifdef __GLIBC__
Tested in environment:
- RedHat 6.0 (Hedwig)
- kernel 2.2.10
Last updated by Jan Jirmasek, 1. February 2000