[luau] Ghost for Linux and Pattition Image

MonMotha monmotha at indy.rr.com
Tue Nov 5 12:22:00 PST 2002


W. Wayne Liauh wrote:
snip
> 
> Partition Image will only copy data from the used portions of the 
> partition. For speed and efficiency, free blocks are not written to the 
> image file. This is unlike the 'dd' command, which also copies empty 
> blocks. Partition Image also works for large, very full partitions. For 
> example, a full 1 GB partition can be compressed with gzip down to 400MB.

BZIP2 and GZIP both compress null data pretty well.  The problem that 
arises is that often, this "free space" isn't really blank, just marked 
"unused".  A solution I've seen to this is to use a resize program to 
resize the image down to the minimum size it can be once the image is taken.

snip

--MonMotha
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 252 bytes
Desc: not available
URL: <http://lists.freesoftwarehawaii.org/pipermail/luau-freesoftwarehawaii.org/attachments/20021105/bd3f09e2/attachment-0001.pgp>


More information about the LUAU mailing list