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 249 SYSTEMD-FSCKD.SERVICE(8)
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