Restoring from BTRFS SD card

[Nachteule]

(10th Feb, 2019 08:05 AM)nickfx Wrote:  Any idea whether this is related to the LZ4 compression, and whether I can restore these files somehow?

First check if you have LZ4 compression enabled:

Terminal

grep -oE "compress-force=[^ ]*|compress*=[^ ]*" /boot/cmdline.txt

If LZ4 enabled, you could try to use the internal rescue mode, which resides in initramfs.

To enable this, add rescue to commandline (in file /boot/cmdline.txt), make sure that initramfs is enabled [1]
(FORCEINITRAM=yes in /etc/default/xbian-initramfs) before rebooting

[1] initramfs can be enabled via XBian-config GUI, category System