kodi freezes

[Nachteule]

Ok, so step for step:

1) for this procedure you have to enabled initramfs, because all stuff needed for rescue system is in the initramfs

If it is not enabled (you don't see message "To dropdown to shell, press and hold shift on usb attached keyboard..." on the upper left corner of your screen when you power up RPi), you have to enable it by putting your sd-card into an sd-card reader and edit file config.txt. This file is located on first partition of sd-card. It's a VFAT partition, so you can do this on your PC using a standard text editor of your choice.
Find the line initramfs initramfs.gz 0x1... and make sure that this line is NOT commented out by a leading '#' character

2) Enable rescue mode

To enable rescue mode you have to add rescue to the cmdline in the file file cmdline.txt. This file is located at the same place config.txt is. Please note, ALL parameters have to be in one line, separated by space. Do NOT add new line in file cmdline.txt

3) Boot into rescue mode

Plug in your sd-card into RPi and power up RPi. After a short while you will see text console of recovery system.

4) Revert root subvolume to a snapshot by entering following commands:

Terminal

mount /dev/root /mnt
cd /mnt/root
ls -la

This will give you a list of all available snapshots of your root subvolume. It looks something like this:
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_apt-run-2017-05-18-2200
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_apt-run-2017-05-18-2201
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_apt-run-2017-05-18-2202
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_daily-2017-05-17-1857
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_daily-2017-05-18-1913
drwxr-xr-x 1 root root 200 Mär 28 15:09 @btrfs-auto-snap_monthly-2017-03-28-1603
drwxr-xr-x 1 root root 176 Apr 16 17:46 @btrfs-auto-snap_monthly-2017-04-16-1812
drwxr-xr-x 1 root root 176 Apr 17 15:38 @btrfs-auto-snap_monthly-2017-04-17-1639
drwxr-xr-x 1 root root 200 Apr 27 17:52 @btrfs-auto-snap_monthly-2017-04-28-1953
drwxr-xr-x 1 root root 200 Apr 18 19:18 @btrfs-auto-snap_weekly-2017-04-26-1844
drwxr-xr-x 1 root root 200 Apr 27 17:52 @btrfs-auto-snap_weekly-2017-05-04-0249
drwxr-xr-x 1 root root 200 Mai 7 20:31 @btrfs-auto-snap_weekly-2017-05-10-1930
drwxr-xr-x 1 root root 220 Mai 11 04:19 @btrfs-auto-snap_weekly-2017-05-17-1924
drwxr-xr-x 1 root root 220 Mai 11 04:19 @last_good_known

Terminal

mv @ @-bad

@ is the current active (and bad) root subvolume. This command moves it away

Terminal

mv @btrfs-auto-snap_apt-run-2017... @

@btrfs-auto-snap_apt-run-2017... is the snapshort before you run apt-get dist-upgrade, make this
snapshot to the active one

Terminal

sync

Make sure that everything is written back to disk. Now it's save to power off RPi

5) Disable rescue mode again by removing the rescue parameter from your cmdline in cmdline.txt

6) Finally boot RPi