systemd-remount-fs.service - Man Page

Remount root and kernel file systems

Synopsis

systemd-remount-fs.service

/usr/lib/systemd/systemd-remount-fs

Description

systemd-remount-fs.service is an early boot service that applies mount options listed in fstab(5), or gathered from the partition table (when systemd-gpt-auto-generator(8) is active) to the root file system, the /usr file system, and the kernel API file systems. This is required so that the mount options of these file systems ā€” which are pre-mounted by the kernel, the initial RAM disk, container environments or system manager code ā€” are updated to those configured in /etc/fstab and the other sources. This service ignores normal file systems and only changes the root file system (i.e. /), /usr, and the virtual kernel API file systems such as /proc, /sys or /dev. This service executes no operation if no configuration is found (/etc/fstab does not exist or lists no entries for the mentioned file systems, or the partition table does not contain relevant entries).

For a longer discussion of kernel API file systems see API File Systems[1].

Note: systemd-remount-fs.service is usually pulled in by systemd-fstab-generator(8), hence it is also affected by the kernel command line option fstab=, which may be used to disable the generator. It may also pulled in by systemd-gpt-auto-generator(8), which is affected by systemd.gpt_auto and other options.

See Also

systemd(1), fstab(5), mount(8), systemd-fstab-generator(8), systemd-gpt-auto-generator(8)

Notes

1.

API File Systems
https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems

Referenced By

systemd.directives(7), systemd-fstab-generator(8), systemd-gpt-auto-generator(8), systemd.index(7).

The man page systemd-remount-fs(8) is an alias of systemd-remount-fs.service(8).

systemd 245