In one phone upgrade from latest 4.4.x to 4.5 fails with this error:
[...] sailfish-upgrade-ui: Distribution upgrade error: Subprocess failed. Error: RPM failed: installing package appsupport-system-privileged-188.8.131.52.28-1.11.1.jolla.armv7hl needs 14MB more space on the /opt filesystem
If I look into /opt then I see that files are only in alien subfolder with this content:
username@:/opt/alien$ ls -lh total 416M -rw-r--r-- 1 root root 4.0K Jul 7 2022 build.prop -rw-r--r-- 1 root root 339.5M Jul 7 2022 system.img --w------- 1 root root 76.9M Dec 1 2019 system.img;5de434f9
File system.img;5de434f9 seems like something strange - can anyone advise if it simply can be deleted?
And are the other ones needed? Since Android layer is used in that phone, then probably yes…