From 1746e31049c50fb413cceeefcf21b2bda4e2de48 Mon Sep 17 00:00:00 2001 From: Gerardo Exequiel Pozzi Date: Sat, 13 Oct 2012 14:40:41 -0300 Subject: [archiso] Introduce cowfile_size= bootparam If not set, nothing is changed in current behaviour. Since dm-snapshot allows to use as "COW" a file with any size, without caring about the the size of "origin", we can avoid creating a "COW" file of the same size as the "origin". This is really useful, when using as cow_device= a filesystem that is VFAT where sparse files are not supported, so if root-image.fs is 1000M, passing cowfile_size=25% will create a root-image.cow of 250M instead of 1000M. Signed-off-by: Gerardo Exequiel Pozzi --- README | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'README') diff --git a/README b/README index ce8d355..c33f444 100644 --- a/README +++ b/README @@ -65,6 +65,11 @@ INDEX Size is in bytes (suffix with "k", "m" and "g") or in percentage of available RAM. Default: "75%" +* cowfile_size= Set the size for all files to be used as COW (dm-snapshot), + in percentage of the ro-device.fs file. This is mostly useful + when cow_device= is used and filesystem does not support + sparse files (ie VFAT). + Default: "100%" * copytoram_size= Set the size of tmpfs. This space is used for copy of all SquashFS images used, if copytoram=y. Size is in bytes (suffix with "k", "m" and "g") or -- cgit v1.2.2