Package: btrfs-progs Version: 4.16.1-2 Severity: normal btrfs-progs 4.16.1 introduced a regression in btrfs send. After creating a snapshot of / in /var/backups, I've sent an incremental stream to a filesystem mounted on /backups:
% btrfs subvolume snapshot -r / /var/backups/weekly-20180517T123915Z Create a readonly snapshot of '/' in '/var/backups/weekly-20180517T123915Z' % btrfs send -p /var/backups/monthly /var/backups/weekly-20180517T123915Z | btrfs receive /backups ERROR: not on mount point: / ERROR: empty stream is not considered valid In the pipeline above, btrfs send always fails with "ERROR: not on mount point: /". The problem seems to be related to bug https://github.com/kdave/btrfs-progs/issues/96 Pull request https://github.com/kdave/btrfs-progs/pull/138 should fix this regression. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.16.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages btrfs-progs depends on: ii libblkid1 2.32-0.1 ii libc6 2.27-3 ii liblzo2-2 2.10-0.1 ii libuuid1 2.32-0.1 ii zlib1g 1:1.2.11.dfsg-1 btrfs-progs recommends no packages. Versions of packages btrfs-progs suggests: pn duperemove <none> -- no debconf information
