btrfs
On ubuntu, install it with
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apt install btrfs-tools |
To format a partition in btrfs, run
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root@backup:~# mkfs.btrfs -L mydisk /dev/sdc btrfs-progs v4.4 See http://btrfs.wiki.kernel.org for more information. Performing full device TRIM (32.00GiB) ... Label: mydisk UUID: 14049348-3ebd-4e4e-b932-f4a041e72e46 Node size: 16384 Sector size: 4096 Filesystem size: 32.00GiB Block group profiles: Data: single 8.00MiB Metadata: DUP 1.01GiB System: DUP 12.00MiB SSD detected: no Incompat features: extref, skinny-metadata Number of devices: 1 Devices: ID SIZE PATH 1 32.00GiB /dev/sdc root@backup:~# parted /dev/sdc print Model: ATA QEMU HARDDISK (scsi) Disk /dev/sdc: 34.4GB Sector size (logical/physical): 512B/512B Partition Table: loop Disk Flags: Number Start End Size File system Flags 1 0.00B 34.4GB 34.4GB btrfs root@backup:~# |
To mount, use
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mkdir /mydisk mount /dev/sdc /mydisk |
Since we don’t create any partition inside /dev/sdc, we just use sdc instead of normal sdc1.
I tried with /dev/sdc1, but did not work.
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root@backup:~# mount /dev/sdc1 /mydisk mount: special device /dev/sdc1 does not exist root@backup:~# mount /dev/sdc /mydisk root@backup:~# |