From 55473e86b6fc1bc15d58810eb73594b1f30568bf Mon Sep 17 00:00:00 2001 From: Fabian Deutsch Date: Thu, 21 May 2015 12:37:38 +0200 Subject: [PATCH] doc: Add a minimal rd.live.overlay documentation Signed-off-by: Fabian Deutsch (cherry picked from commit a1b4efe6a722ac3754d8a48109575d11d5ccf61b) --- dracut.cmdline.7.asc | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc index 1e89bd50..c7e3bd40 100644 --- a/dracut.cmdline.7.asc +++ b/dracut.cmdline.7.asc @@ -806,6 +806,18 @@ can be found. By default, this is __LiveOS__. Copy the complete image to RAM and use this for booting. This is useful when the image resides on i.e. a DVD which needs to be ejected later on. +**rd.live.overlay=**__:_(|auto)__ +Allow the usage of a permanent overlay. +__ specifies the path to a device with a mountable filesystem. +__ is the path to a file within that filesystem, which shall be used to +persist the changes made to the device specified by **root=live:____** option. ++ +[listing] +.Example +-- +rd.live.overlay=/dev/sdb1:persistent-overlay.img +-- + **rd.live.overlay.thin=**1:: Enables the usage of thin snapshots instead of classic dm snapshots. The advantage of thin snapshots is, that they support discards, and will free