This program works similarly to "mount -o loop", but the filesystem
runs in userspace, making it possible for non-root users to safely
loopback mount filesystem images.
It works by starting a UML (User Mode Linux) instance, mounting the
image in there, and exporting the resulting data through FUSE.
This is a first release and is really stupid: you can't even specify
the filesystem type or any mount options. But for filesystems that
mount can recognize it works fine.
A binary compiled for i386 is available (2.1M) [1]. Requirements for
running the binary are:
o FUSE-2.2 or greater, or kernel module from recent -mm kernel
o Any Linux version supported by the above (>= 2.4.21 basically)
To compile from source, the following components are needed:
o Linux 2.6.11 kernel source (35M) [2]
o FUSE 2.3-pre4 source (350k) [3]
o mountlo 0.1 source (15k) [4]
Mount time is about 0.5 sec, which is ghastly compared to native
kernel mount, but not so bad considering, that a complete kernel boot
with initramfs unpacking, etc. is in there. Other than this I haven't
done any performance measurements.
Comments, patches, offers to take over maintenance are welcome ;)
Miklos
[1] http://prdownloads.sourceforge.net/fuse/mountlo-i386-0.1.tar.gz
[2] http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.tar.bz2
[3] http://prdownloads.sourceforge.net/fuse/fuse-2.3-pre4.tar.gz
[4] http://prdownloads.sourceforge.net/fuse/mountlo-0.1.tar.gz
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