Difference between revisions of "Btrfs"
From wiki
(add snapshot instructions) |
|||
| (One intermediate revision by the same user not shown) | |||
| Line 7: | Line 7: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === | + | == Create a filesystem == |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | == | + | === mkfs === |
| − | === Single Disk === | + | ==== Single Disk ==== |
<syntaxhighlight lang="console"> | <syntaxhighlight lang="console"> | ||
$ sudo mkfs.btrfs /dev/sdb | $ sudo mkfs.btrfs /dev/sdb | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === Raid 1 === | + | ==== Raid 1 ==== |
<syntaxhighlight lang="console"> | <syntaxhighlight lang="console"> | ||
$ sudo mkfs.btrfs -mraid1 -draid1 /dev/sdb /dev/sdc | $ sudo mkfs.btrfs -mraid1 -draid1 /dev/sdb /dev/sdc | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === Raid 0 === | + | ==== Raid 0 ==== |
<syntaxhighlight lang="console"> | <syntaxhighlight lang="console"> | ||
$ sudo mkfs.btrfs -mraid1 -draid0 /dev/sdb /dev/sdc | $ sudo mkfs.btrfs -mraid1 -draid0 /dev/sdb /dev/sdc | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| + | |||
| + | === Mount === | ||
| + | <syntaxhighlight lang="console"> | ||
| + | $ sudo mount /dev/sdb /mnt | ||
| + | </syntaxhighlight>When mounting raid disks, only one of the disks need to be specified in the command. Btrfs will find the other one automatically. | ||
== Subvolumes == | == Subvolumes == | ||
Latest revision as of 21:38, 12 November 2017
 Warning: | Btrfs is still a new filesystem. While many (including myself) find it stable enough for everyday use, don't use it for critical services and be prepared to use you backups. See status page on Btrfs wiki for up-to-date info. |
Install
To create and manipulate Btrfs volumes, you will need to install
$ sudo apt install btrfs-progs
Create a filesystem
mkfs
Single Disk
$ sudo mkfs.btrfs /dev/sdb
Raid 1
$ sudo mkfs.btrfs -mraid1 -draid1 /dev/sdb /dev/sdc
Raid 0
$ sudo mkfs.btrfs -mraid1 -draid0 /dev/sdb /dev/sdc
Mount
$ sudo mount /dev/sdb /mnt
When mounting raid disks, only one of the disks need to be specified in the command. Btrfs will find the other one automatically.
Subvolumes
To create a subvolume just use the command
$ sudo btrfs subvolume create /<path>
To create a snapshot use
$ sudo btrfs subvolume snapshot /<source-path> /<destination-path>
