scripts/live-helpers: Don't search ram block devices

We are hardly likely to find persistent-related devices on RAM disks, so
we ignore them whilst searching.

diff --git a/scripts/live-helpers b/scripts/live-helpers
index 6c03751..b0ad4b6 100644 (file)
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -234,7 +234,7 @@ find_cow_device ()
        pers_label="${1}"
        cow_backing="/${pers_label}-backing"
 
-       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop)
+       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram)
        do
                for dev in $(subdevices "${sysblock}")
                do
@@ -274,7 +274,7 @@ find_files ()
        filenames="${1}"
        snap_backing="/snap-backing"
 
-       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop)
+       for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram)
        do
                for dev in $(subdevices "${sysblock}")
                do