SYSTEMD-REMOUNT-FS.SERVICE(8)emd-remount-fs.serviceEMD-REMOUNT-FS.SERVICE(8)
systemd-remount-fs.service, systemd-remount-fs - Remount root and
kernel file systems
systemd-remount-fs.service
/usr/lib/systemd/systemd-remount-fs
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 — which
are pre-mounted by the kernel, the initial RAM disk, container
environments or system manager code — 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.
systemd(1), fstab(5), mount(8), systemd-fstab-generator(8),
systemd-gpt-auto-generator(8)
1. API File Systems
https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
This page is part of the systemd (systemd system and service manager)
project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a bug
report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This
page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
systemd 246 SYSTEMD-REMOUNT-FS.SERVICE(8)
Pages that refer to this page: 30-systemd-environment-d-generator(7) , systemd.directives(7) , systemd.index(7) , systemd-fstab-generator(8) , systemd-gpt-auto-generator(8)