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authorChris Lamb <chris@chris-lamb.co.uk>2008-06-15 05:30:42 +0100
committerDaniel Baumann <daniel@debian.org>2011-03-09 17:48:00 +0100
commit41e9edcaf36bf2b7d56eee71bee80703176d111e (patch)
tree419414862cddb195cb9e18ca0a04703483651b74 /scripts
parentb456dd1c73f51b706f7e47ef9296cca7ddd51d19 (diff)
downloadlive-boot-41e9edcaf36bf2b7d56eee71bee80703176d111e.tar.gz
live-boot-41e9edcaf36bf2b7d56eee71bee80703176d111e.zip
Check losetup capabilities before specifying to mount as read-only.
This is to retain compatibility with Etch's non-loop-aes-utils' losetup.
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/live7
-rw-r--r--scripts/live-helpers5
2 files changed, 10 insertions, 2 deletions
diff --git a/scripts/live b/scripts/live
index 3f39c97..ee363c3 100755
--- a/scripts/live
+++ b/scripts/live
@@ -1008,7 +1008,12 @@ setup_unionfs ()
rofslist="${image} ${rofslist}"
elif [ -f "${image}" ]
then
- backdev=$(get_backing_device "${image}" "-r")
+ if /sbin/losetup --help 2>&1 | grep -q -- "-r\b"
+ then
+ backdev=$(get_backing_device "${image}" "-r")
+ else
+ backdev=$(get_backing_device "${image}")
+ fi
fstype=$(get_fstype "${backdev}")
if [ "${fstype}" = "unknown" ]
diff --git a/scripts/live-helpers b/scripts/live-helpers
index 02c3e55..20952f3 100644
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -181,7 +181,10 @@ setup_loop ()
if [ -n ${readonly} ]
then
- options="${options} -r"
+ if /sbin/losetup --help 2>&1 | grep -q -- "-r\b"
+ then
+ options="${options} -r"
+ fi
fi
if [ 0 -lt "${offset}" ]