bcachefs Command Examples
Manage
bcachefs
filesystems/devices. Some subcommands such asdevice
have their own usage documentation. More information: https://bcachefs-docs.readthedocs.io/en/latest/index.html.
- Format a partition with
bcachefs
:
sudo bcachefs format {{path/to/partition}}
- Mount a
bcachefs
filesystem:
sudo bcachefs mount {{path/to/partition}} {{path/to/mountpoint}}
- Create a RAID 0 filesystem where an SSD acts as a cache and an HDD acts as a long-term storage:
sudo bcachefs format --label=ssd.ssd1 {{path/to/ssd/partition}} --label=hdd.hdd1 {{path/to/hdd/partition}} --replicas=1 --foreground_target=ssd --promote_target=ssd --background_target=hdd
- Mount a multidevice filesystem:
sudo bcachefs mount {{path/to/partition1}}:{{path/to/partition2}} {{path/to/mountpoint}}
- Display disk usage:
bcachefs fs usage --human-readable {{path/to/mountpoint}}
- Set replicas after formatting and mounting:
sudo bcachefs set-fs-option --metadata_replicas={{2}} --data_replicas={{2}} {{path/to/partition}}
- Force
bcachefs
to ensure all files are replicated:
sudo bcachefs data rereplicate {{path/to/mountpoint}}
- Display help:
bcachefs