Additionally, the permissions of /var/log aren't the only thing which change when re-flashing the same image.
I collected the output of 'ls -alR /' during the first and second flash, filtered it a bit to remove most of the noise, and diff'd the two to look for differences. Some of the results are unusual. One oddity is a change in mmcblk0 partition numbers, though this might make sense if the system swaps between two as a failsafe mechanism. /dev/disk/by-path: -lrwxrwxrwx root root platform-mtk-msdc.0 -> ../../mmcblk0boot1 +lrwxrwxrwx root root platform-mtk-msdc.0 -> ../../mmcblk0boot0 ... -lrwxrwxrwx root root 57f8f4bc-abf4-655f-bf67-946fc0f9f25b -> ../../mmcblk0p14 +lrwxrwxrwx root root 57f8f4bc-abf4-655f-bf67-946fc0f9f25b -> ../../mmcblk0p15 More unusual is an apparent difference in the version numbers of installed click apps. For example: /sys/kernel/security/apparmor/policy/profiles: -drwxr-xr-x root root com.canonical.cincodias_CINCODIAS_0.2.19 +drwxr-xr-x root root com.canonical.cincodias_CINCODIAS_0.2.20 -drwxr-xr-x root root com.canonical.elpais_webapp-ELPAIS_0.6.28 +drwxr-xr-x root root com.canonical.elpais_webapp-ELPAIS_0.6.29 -drwxr-xr-x root root com.canonical.scopes.bbc-sport_bbc-sport_1.3.1.31 +drwxr-xr-x root root com.canonical.scopes.bbc-sport_bbc-sport_1.3.1.32 -drwxr-xr-x root root com.ubuntu.calculator_ubuntu-calculator-app_2.0.155.32 +drwxr-xr-x root root com.ubuntu.calculator_ubuntu-calculator-app_2.0.155.31 -drwxr-xr-x root root com.ubuntu.music_music_2.1.857.13 +drwxr-xr-x root root com.ubuntu.music_music_2.1.857.12 -drwxr-xr-x root root com.ubuntu.scopes.youtube_youtube_1.0.18-134.30 +drwxr-xr-x root root com.ubuntu.scopes.youtube_youtube_1.0.18-134.28 -drwxr-xr-x root root com.ubuntu.weather_weather_1.1.403.20 +drwxr-xr-x root root com.ubuntu.weather_weather_1.1.403.19 And of course the known symptom: /userdata/system-data/var/log: -drwxrwxr-x root syslog . +drwxrwxr-x root android_input . --rw-r----- syslog adm auth.log --rw-r----- syslog adm syslog The filtered 'ls' output and diff are attached. ** Attachment added: "ls-alR.tar.bz2" https://bugs.launchpad.net/ubuntu/+source/livecd-rootfs/+bug/1451565/+attachment/4400392/+files/ls-alR.tar.bz2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451565 Title: /var/log owned by wrong group (android_input) (again) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/livecd-rootfs/+bug/1451565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs