17.01.2021 21:49, Anders Halman пишет: > Hello, > > I try to backup my laptop over an unreliable slow internet connection to > a even slower Raspberry Pi. > > To bootstrap the backup I used the following: > > # local > btrfs send root.send.ro | pigz | split --verbose -d -b 1G > rsync -aHAXxv --numeric-ids --partial --progress -e "ssh -T -o > Compression=no -x" x* remote-host:/mnt/backup/btrfs-backup/ > > # remote > cat x* > split.gz > pigz -d split.gz > btrfs receive -f split >
This command is missing argument. > worked nicely. It is impossible, you did not tell "btrfs receive" where to store incoming data. bor@bor-Latitude-E5450:~/src/btrfs-progs$ btrfs receive btrfs receive: exactly 1 argument expected, 0 given > But I don't understand why the "received uuid" on the > remote site in blank. Where is it blank? Show commands you used to check it. > I tried it locally with smaller volumes and it worked. > > The 'split' file contains the correct uuid, but it is not set (remote). > > remote$ btrfs receive --dump -f split | head > subvol ./root.send.ro uuid=99a34963-3506-7e4c-a82d-93e337191684 > transid=1232187 > > local$ sudo btrfs sub show root.send.ro| grep -i uuid: > UUID: 99a34963-3506-7e4c-a82d-93e337191684 > > > Questions: > > - Is there a way to set the "received uuid"? > - Is it a matter of btrfs-progs version difference? > - What whould be a better approach? > > > Thank you > > > ---- > > # local > > root@fos ~$ uname -a > Linux fos 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 > x86_64 x86_64 x86_64 GNU/Linux > > root@fos ~$ btrfs --version > btrfs-progs v5.9 > > root@fos ~$ btrfs fi show > Label: 'DATA' uuid: b6e675b3-84e3-4869-b858-218c5f0ac5ad > Total devices 1 FS bytes used 402.17GiB > devid 1 size 464.27GiB used 414.06GiB path > /dev/mapper/luks-e4e69cfa-faae-4af8-93f5-7b21b25ab4e6 > > root@fos ~$ btrfs fi df /btrfs-root/ > Data, single: total=404.00GiB, used=397.80GiB > System, DUP: total=32.00MiB, used=64.00KiB > Metadata, DUP: total=5.00GiB, used=4.38GiB > GlobalReserve, single: total=512.00MiB, used=0.00B > > > # remote > root@pih:~# uname -a > Linux pih 5.4.72+ #1356 Thu Oct 22 13:56:00 BST 2020 armv6l GNU/Linux > > root@pih:~# btrfs --version > btrfs-progs v4.20.1 > > root@pih:~# btrfs fi show > Label: 'DATA' uuid: 6be1e09c-d1a5-469d-932b-a8d1c339afae > Total devices 1 FS bytes used 377.57GiB > devid 2 size 931.51GiB used 383.06GiB path > /dev/mapper/luks_open_backup0 > > root@pih:~# btrfs fi df /mnt/backup > Data, single: total=375.00GiB, used=374.25GiB > System, DUP: total=32.00MiB, used=64.00KiB > Metadata, DUP: total=4.00GiB, used=3.32GiB > GlobalReserve, single: total=512.00MiB, used=0.00B > > > dmesg is empty for the time of import/btrfs receive.
