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systemd-remount-fs.service(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | NOTES | COLOPHON 

SYSTEMD-....SERVICE(8)  systemd-remount-fs.service SYSTEMD-....SERVICE(8)

NAME         top

       systemd-remount-fs.service, systemd-remount-fs - Remount root and
       kernel file systems

SYNOPSIS         top

       systemd-remount-fs.service

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

DESCRIPTION         top

       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 initrd,
       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 be pulled in by
       systemd-gpt-auto-generator(8), which is affected by
       systemd.gpt_auto and other options.

SEE ALSO         top

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

NOTES         top

        1. API File Systems
           https://systemd.io/API_FILE_SYSTEMS

COLOPHON         top

       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 2025-08-11.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2025-08-11.)  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 258~rc2                                    SYSTEMD-....SERVICE(8)

Pages that refer to this page: systemd.directives(7),  systemd.index(7),  systemd-fstab-generator(8),  systemd-gpt-auto-generator(8)

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