[PATCH] add live_readonly karg to mount /dev/mapper/live-rw as readonly

[PATCH] add live_readonly karg to mount /dev/mapper/live-rw as readonly

[Joey Boggs]

This will allow live cd based images to utilize a readonly root file system.

---
 modules.d/90dmsquash-live/dmsquash-live-root |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/modules.d/90dmsquash-live/dmsquash-live-root b/modules.d/90dmsquash-live/dmsquash-live-root
index e2e3ef8..7457e2c 100755
--- a/modules.d/90dmsquash-live/dmsquash-live-root
+++ b/modules.d/90dmsquash-live/dmsquash-live-root
@@ -21,6 +21,7 @@ live_dir=$(getarg live_dir)
 getarg live_ram && live_ram="yes"
 getarg reset_overlay && reset_overlay="yes"
 getarg readonly_overlay && readonly_overlay="--readonly" || readonly_overlay=""
+getarg live_readonly && live_readonly="-o ro" || live_readonly=""
 overlay=$(getarg overlay)
 
 # FIXME: we need to be able to hide the plymouth splash for the check really
@@ -173,6 +174,6 @@ if [ -b "$OSMIN_LOOPDEV" ]; then
 fi
 
 ln -s /dev/mapper/live-rw /dev/root
-printf '/bin/mount /dev/mapper/live-rw %s\n' "$NEWROOT" > /mount/01-$$-live.sh
+printf '/bin/mount %s /dev/mapper/live-rw %s\n' "$live_readonly" "$NEWROOT" > /mount/01-$$-live.sh
 
 exit 0
-- 
1.6.6.1

Re: [PATCH] add live_readonly karg to mount /dev/mapper/live-rw as readonly

[Harald Hoyer]

On 03/04/2010 09:09 PM, Joey Boggs wrote:
> This will allow live cd based images to utilize a readonly root file system.
>
> ---
>   modules.d/90dmsquash-live/dmsquash-live-root |    3 ++-
>   1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/modules.d/90dmsquash-live/dmsquash-live-root b/modules.d/90dmsquash-live/dmsquash-live-root
> index e2e3ef8..7457e2c 100755
> --- a/modules.d/90dmsquash-live/dmsquash-live-root
> +++ b/modules.d/90dmsquash-live/dmsquash-live-root
> @@ -21,6 +21,7 @@ live_dir=$(getarg live_dir)
>   getarg live_ram&&  live_ram="yes"
>   getarg reset_overlay&&  reset_overlay="yes"
>   getarg readonly_overlay&&  readonly_overlay="--readonly" || readonly_overlay=""
> +getarg live_readonly&&  live_readonly="-o ro" || live_readonly=""
>   overlay=$(getarg overlay)
>
>   # FIXME: we need to be able to hide the plymouth splash for the check really
> @@ -173,6 +174,6 @@ if [ -b "$OSMIN_LOOPDEV" ]; then
>   fi
>
>   ln -s /dev/mapper/live-rw /dev/root
> -printf '/bin/mount /dev/mapper/live-rw %s\n' "$NEWROOT">  /mount/01-$$-live.sh
> +printf '/bin/mount %s /dev/mapper/live-rw %s\n' "$live_readonly" "$NEWROOT">  /mount/01-$$-live.sh
>
>   exit 0

maybe we should teach dmsquash-live to use already defined parameters, like 
"rootflags" "rootfstype" and such.