diff -urN o/common.sh os-prober-1.81/common.sh
--- o/common.sh	2023-01-22 13:43:23.333123217 -0800
+++ os-prober-1.81/common.sh	2023-01-22 13:44:49.408153101 -0800
@@ -326,3 +326,18 @@
 	fi
 }
 
+list_mounts() {
+	if [ -f /proc/self/mountinfo ]; then
+		local x dev mount devs found
+		found=:
+		while read -r x x dev x mount x x fs x; do
+			if [ -L "/sys/dev/block/$dev" ]; then
+				devs="/dev/`readlink \"/sys/dev/block/$dev\" | rev | cut -d/ -f1 | rev`"
+				printf '%s %s %s\n' "$(mapdevfs "$devs")" "$mount" "$fs"
+				found="return 0"
+			fi
+		done < /proc/self/mountinfo
+		$found
+	fi
+	grep "^/dev/" /proc/mounts | parse_proc_mounts
+}
diff -urN o/linux-boot-prober os-prober-1.81/linux-boot-prober
--- o/linux-boot-prober	2023-01-22 13:43:23.334123229 -0800
+++ os-prober-1.81/linux-boot-prober	2023-01-22 13:43:34.897260733 -0800
@@ -17,7 +17,7 @@
 bootsv=
 bootuuid=
 
-grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true
+list_mounts >"$OS_PROBER_TMP/mounted-map" || true
 
 if [ -z "$1" ]; then
 	ERR=y
diff -urN o/os-prober os-prober-1.81/os-prober
--- o/os-prober	2023-01-22 13:43:23.334123229 -0800
+++ os-prober-1.81/os-prober	2023-01-22 13:43:34.897260733 -0800
@@ -128,7 +128,7 @@
 
 # We need to properly canonicalize partitions with mount points and partitions
 # used in RAID
-grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true
+list_mounts >"$OS_PROBER_TMP/mounted-map" || true
 : >"$OS_PROBER_TMP/swaps-map"
 if [ -f /proc/swaps ]; then
 	grep "^/dev/" /proc/swaps | parse_proc_swaps >"$OS_PROBER_TMP/swaps-map" || true