Post Type:
Tutorial
Level: Advanced
Okay, say if you have a large virutal machine image, that you have
copied from your external usb drive to your harddrive.
Myimage.img 4G
If the file contains a lot of zero blocks , you can convert the file to
a sparse file with.
cp --sparse=Myimage.img mysparseimage.img
ls will report it's the size of the file.
du mysparseimage.img will report the actual size on disk.
http://freshmeat.net/projects/phantom/
this tools with convert all files to sparse files, beware I've not tried
this tool, so if it trashes your harddisk , don't blame me.
Delicious
Digg
StumbleUpon
