### pstore
### command: bash -lc ls -la /sys/fs/pstore 2>/dev/null; for f in /sys/fs/pstore/*; do [ -f "$f" ] && echo "--- $f" && head -300 "$f"; done || true
total 0
drwxr-x---  2 root root 0 Jun  4 14:22 .
drwxr-xr-x 10 root root 0 Jun  4 14:22 ..