bcachefs

Manage bcachefs filesystems/devices. Some subcommands such as device 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