SYSTEMD-FSCKD.SERVICE(8) systemd-fsckd.service SYSTEMD-FSCKD.SERVICE(8)
NAME
systemd-fsckd.service, systemd-fsckd.socket, systemd-fsckd - File
system check progress reporting
SYNOPSIS
systemd-fsckd.service
systemd-fsckd.socket
/lib/systemd/systemd-fsckd
DESCRIPTION
systemd-fsckd.service is a service responsible for receiving file
system check progress, and communicating some consolidated data to
console and plymouth (if running). It also handles possible check
cancellations.
systemd-fsckd receives messages about file system check progress from
fsck through an UNIX domain socket. It can display the progress of the
least advanced fsck as well as the total number of devices being
checked in parallel to the console. It will also send progress messages
to plymouth. Both the raw data and translated messages are sent, so
compiled plymouth themes can use the raw data to display custom
messages, and scripted themes, not supporting i18n, can display the
translated versions.
systemd-fsckd will instruct plymouth to grab Control+C keypresses. When
the key is pressed, running checks will be terminated. It will also
cancel any newly connected fsck instances for the lifetime of
systemd-fsckd.
PROTOCOL FOR COMMUNICATION WITH PLYMOUTH
systemd-fsckd passes the following messages to the theme:
Progress update, sent as a plymouth update message:
"fsckd:<num_devices>:<progress>:<string>"
"<num_devices>"
the current number of devices being checked (int)
"<progress>"
the current minimum percentage of all devices being checking
(float, from 0 to 100)
"<string>"
a translated message ready to be displayed by the plymouth theme
displaying the data above. It can be overridden by themes
supporting i18n.
Cancel message, sent as a traditional plymouth message:
"fsckd-cancel-msg:<string>"
"<strings>"
a translated string ready to be displayed by the plymouth theme
indicating that Control+C can be used to cancel current checks. It
can be overridden (matching only "fsckd-cancel-msg" prefix) by
themes supporting i18n.
OPTIONS
The following options are understood:
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. Note that
the daemon stays idle for a while to accept new fsck connections before
exiting.
SEE ALSO
systemd(1), systemd-fsck(8), fsck(8), systemd-quotacheck.service(8),
fsck.btrfs(8), fsck.cramfs(8), fsck.ext4(8), fsck.fat(8),
fsck.hfsplus(8), fsck.minix(8), fsck.ntfs(8), fsck.xfs(8)
systemd 245 SYSTEMD-FSCKD.SERVICE(8)