Merge ~nwg/ubuntu/+source/os-prober:scan-luks-partitions into ubuntu/+source/os-prober:ubuntu/devel

[Nathaniel Griswold]

Also scan LUKS encrypted partitions

Ubuntu bug #530252 still exists on branch main and on my jammy system

This patch adds LUKS encrypted partitions to `partions ()' in
/usr/bin/os-prober

https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/530252

Unmerged commits

70b3e94... by Nathaniel Griswold <email address hidden> on 2024-05-10

Detect LUKS encrypted volumes in partitions ()

diff --git a/os-prober b/os-prober
index 0d73ade..ebb1f90 100755
--- a/os-prober
+++ b/os-prober
@@ -73,6 +73,15 @@ partitions () {
 		echo "$(LVM_SUPPRESS_FD_WARNINGS=1 log_output lvs --noheadings --separator : -o vg_name,lv_name |
 			sed "s|-|--|g;s|^[[:space:]]*\(.*\):\(.*\)$|/dev/mapper/\1-\2|")"
 	fi
+
+	# Also detect OSes on LUKS encrypted volumes that are currently unlocked
+	if type cryptsetup >/dev/null 2>&1; then
+		for device in $(ls /dev/mapper); do
+			if [ "$(cryptsetup status /dev/mapper/$device | grep LUKS)" != "" ]; then
+				echo "/dev/mapper/$device"
+			fi
+		done
+	fi
 }
 
 parse_proc_swaps () {