systemd-makefs@.service(8)

SYSTEMD-MAKEFS@.SERVICE(8)  systemd-makefs@.service SYSTEMD-MAKEFS@.SERVICE(8)

NAME
       systemd-makefs@.service, systemd-mkswap@.service, systemd-
       growfs@.service, systemd-makefs, systemd-growfs - Creating and growing
       file systems on demand

SYNOPSIS
       systemd-makefs@device.service

       systemd-mkswap@device.service

       systemd-growfs@mountpoint.service

       /lib/systemd/systemd-makefs

       /lib/systemd/systemd-growfs

DESCRIPTION
       systemd-makefs@.service, systemd-mkswap@.service, and
       systemd-growfs@.service are used to implement the x-systemd.makefs and
       x-systemd.growfs options in fstab(5), see systemd.mount(5). They are
       instantiated for each device for which the file system or swap
       structure needs to be initialized, and for each mount point where the
       file system needs to be grown.

       These services are started at boot, either right before or right after
       the mount point or swap device are used.

       systemd-makefs knows very little about specific file systems and swap
       devices, and after checking that the block device does not already
       contain a file system or other content, it will execute binaries
       specific to each filesystem type (/sbin/mkfs.type).

       systemd-growfs knows very little about specific file systems and swap
       devices, and will instruct the kernel to grow the mounted filesystem to
       full size of the underlying block device. Nevertheless, it needs to
       know the ioctl(2) number specific to each file system, so only certain
       types are supported. Currently: ext4(5), btrfs (see btrfs-man5(5)),
       xfs(5), and dm-crypt partitions (see cryptsetup(8)).

       If the creation of a file system or swap device fails, the mount point
       or swap is failed too. If the growing of a file system fails, a warning
       is emitted.

SEE ALSO
       systemd(1), systemd.mount(8), systemd-fstab-generator(8), systemd-
       repart(8), mkfs.btrfs(8), mkfs.cramfs(8), mkfs.ext4(8), mkfs.fat(8),
       mkfs.hfsplus(8), mkfs.minix(8), mkfs.ntfs(8), mkfs.xfs(8)

systemd 245                                         SYSTEMD-MAKEFS@.SERVICE(8)