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MOUNT_HAMMER2(8) System Manager's Manual MOUNT_HAMMER2(8)

mount_hammer2mount a HAMMER2 file system

mount_hammer2 [-o options] special[@label] node

mount_hammer2 [-o options] @label node

mount_hammer2 -u [-o options] node

The mount_hammer2 utility mounts a HAMMER2 file system backed by special file at mount point node. PFS label is mounted.

@label (no special) is a short form, which mounts label from an already mounted HAMMER2 filesystem. If there are multiple mounts with the same label, the first one mounted takes precedence over others.

Default value for label is based on partition of special: ‘a’ defaults to "BOOT" , ‘d’ defaults to "ROOT", and any other partition defaults to "DATA".

The options are as follows:

options
Options are specified with a -o flag followed by a comma separated string of options. See the mount(8) man page for possible options and their meanings. The following HAMMER2 specific options are also available:
Disable PFS clustering.
Update the mount point. This is used to upgrade a mount to read-write.

The mount_hammer2 utility exits 0 on success, and >0 if an error occurs.

Mount a HAMMER2 file system on /mnt, PFS "ROOT" is mounted:

mount_hammer2 /dev/da0s1d /mnt

A corresponding fstab(5) entry is:

/dev/da0s1d /mnt hammer2

Mount PFS "TEST" from same filesystem:

mount_hammer2 @TEST /mnt2

mount(2), unmount(2), fstab(5), disklabel32(8), disklabel64(8), fdisk(8), gpt(8), hammer2(8), mount(8), newfs_hammer2(8)

The mount_hammer2 utility first appeared in DragonFly 3.3.

This manual page was written by Thomas Nikolajsen.

October 8, 2020 DragonFly-6.0.1