diff -Naurp 01.txt 02.txt
+tmpfs on newbuild/tmp/work/debian-bookworm-amd64/sbuild-chroot-target/1.0-r0/rootfs/dev type tmpfs (rw,nosuid,size=4096k,nr_inodes=65536,mode=755,inode64)

Signed-off-by: Florian Bezdeka <florian.bezdeka@siemens.com>
Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
---
 meta/classes/rootfs.bbclass | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
index ef40cbdf..c7011508 100644
--- a/meta/classes/rootfs.bbclass
+++ b/meta/classes/rootfs.bbclass
@@ -248,18 +248,21 @@ python do_rootfs_install() {
     progress_reporter = bb.progress.MultiStageProgressReporter(d, stage_weights)
     d.rootfs_progress = progress_reporter
 
-    for cmd in cmds:
-        progress_reporter.next_stage()
+    try:
+        for cmd in cmds:
+            progress_reporter.next_stage()
 
-        if (d.getVarFlag(cmd, 'isar-apt-lock') or "") == "acquire-before":
-            lock = bb.utils.lockfile(d.getVar("REPO_ISAR_DIR") + "/isar.lock",
-                                     shared=True)
+            if (d.getVarFlag(cmd, 'isar-apt-lock') or "") == "acquire-before":
+                lock = bb.utils.lockfile(d.getVar("REPO_ISAR_DIR") + "/isar.lock",
+                                         shared=True)
 
-        bb.build.exec_func(cmd, d)
+            bb.build.exec_func(cmd, d)
 
-        if (d.getVarFlag(cmd, 'isar-apt-lock') or "") == "release-after":
-            bb.utils.unlockfile(lock)
-    progress_reporter.finish()
+            if (d.getVarFlag(cmd, 'isar-apt-lock') or "") == "release-after":
+                bb.utils.unlockfile(lock)
+            progress_reporter.finish()
+    finally:
+        bb.build.exec_func('rootfs_do_umounts', d)
 }
 addtask rootfs_install before do_rootfs_postprocess after do_unpack
 
@@ -379,9 +382,13 @@ python do_rootfs_postprocess() {
     if cmds is None or not cmds.strip():
         return
     cmds = cmds.split()
-    for i, cmd in enumerate(cmds):
-        bb.build.exec_func(cmd, d)
-        progress_reporter.update(int(i / len(cmds) * 100))
+
+    try:
+        for i, cmd in enumerate(cmds):
+            bb.build.exec_func(cmd, d)
+            progress_reporter.update(int(i / len(cmds) * 100))
+    finally:
+        bb.build.exec_func('rootfs_do_umounts', d)
 }
 addtask rootfs_postprocess before do_rootfs after do_unpack
 
