Add additional check in %post to prevent generating the btrfs /etc subvolume during a KIWI run [bsc#1250133] [gh#openSUSE/read-only-root-fs#27]

read-only-root-fs.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Fri Sep 19 09:20:04 UTC 2025 - Ignaz Forster <iforster@suse.com>
+
+- Add additional check in %post to prevent generating the btrfs
+  /etc subvolume during a KIWI run
+  [bsc#1250133] [gh#openSUSE/read-only-root-fs#27]
+
 -------------------------------------------------------------------
 Tue Jul 08 12:47:38 UTC 2025 - Fabian Vogt <fvogt@suse.com>
 

read-only-root-fs.spec

@@ -68,7 +68,10 @@ have a writable /root or /home, additional fstab entries can be added.
 cp -a etc usr %{buildroot}
 
 %post
-if [ "$1" = 1 -a "`findmnt -n -o FSTYPE -l /`" = "btrfs" ] ; then
+# Create /etc subvolume for fresh installations
+# Exception: The host's file system for KIWI builds may also be btrfs, but for KIWI
+# (indicator: /.kconfig is present) the script will be called later in disk.sh.
+if [ "$1" = 1 ] && [ "`findmnt -n -o FSTYPE -l /`" = "btrfs" ] && [ ! -e /.kconfig ]; then
     %{_libexecdir}/setup-etc-subvol
 fi
 if [ ! -e /boot/writable -a "`findmnt -n -o FSTYPE -l /`" = "btrfs" ]; then