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authorGerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>2012-10-13 14:40:41 -0300
committerGerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>2012-10-13 14:40:41 -0300
commit1746e31049c50fb413cceeefcf21b2bda4e2de48 (patch)
tree9602524f975f2a384b7c578211c29c103c1f8e5a /README
parent2e94974e2b37b540d52799362f05e16315cb0b00 (diff)
[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 <vmlinuz386@yahoo.com.ar>
Diffstat (limited to 'README')
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diff --git a/README b/README
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--- 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