[coLinux-devel] making sparse files for partitions...

[Anders E. C (KI/EAB) <and...@er...>]

Hi,

I recently discovered I was running out of space on my main partition and needed to allcoate a new file to host a subset of it (/usr portage in this case). I checked the wiki, and it suggests using fsutil (available on xp only, though ntfs supports spare files on any windows version afaik) or making a non-sparse file using dd.

I knocked up this util to create sparse files. It works at least in cygwin, so that solved the problem for me. Now I have what appears to be a 1GB filesystem, using only 110MB of diskspace with a reiserfs on it (/usr/portage used to live on ext3 which made it occupy 420MB disk space).

have fun, YMMV

/Anders
 <<mksparse.c>>