Linux Manuals session 8

systemd-readahead-replay.service, systemd-readahead-collect.service, systemd-readahead-done.service, systemd-readahead-done.timer, systemd-readahead – Disk read ahead logic Synopsis systemd-readahead-replay.service systemd-readahead-collect.service systemd-readahead-done.service systemd-readahead-done.timer /usr/lib/systemd/systemd-readahead/systemd-readahead [OPTIONS…] COMMAND [DIRECTORY | FILE] Description systemd-readahead-collect.service is a service that collects disk usage patterns at boot time. systemd-readahead-replay.service is a service that replays this access data collected at the subsequent boot. Since disks tend to be magnitudes slower…

systemd-readahead-replay.service, systemd-readahead-collect.service, systemd-readahead-done.service, systemd-readahead-done.timer, systemd-readahead – Disk read ahead logic Synopsis systemd-readahead-replay.service systemd-readahead-collect.service systemd-readahead-done.service systemd-readahead-done.timer /usr/lib/systemd/systemd-readahead/systemd-readahead [OPTIONS…] COMMAND [DIRECTORY | FILE] Description systemd-readahead-collect.service is a service that collects disk usage patterns at boot time. systemd-readahead-replay.service is a service that replays this access data collected at the subsequent boot. Since disks tend to be magnitudes slower…

systemd-rc-local-generator, rc-local.service – Compatibility generator and service to start /etc/rc.local during boot Synopsis /lib/systemd/system-generators/systemd-rc-local-generator rc-local.service Description systemd-rc-local-generator is a generator that checks whether /etc/rc.local exists and is executable, and if it is, pulls the rc-local.service unit into the boot process. This unit is responsible for running this script during late boot. The script is run…

systemd-random-seed.service, systemd-random-seed – Load and save the system random seed at boot and shutdown Synopsis systemd-random-seed.service /usr/lib/systemd/random-seed Description systemd-random-seed.service is a service that loads an on-disk random seed into the kernel entropy pool during boot and saves it at shutdown. See random(4) for details. By default, no entropy is credited when the random seed is…

systemd-random-seed.service, systemd-random-seed – Load and save the system random seed at boot and shutdown Synopsis systemd-random-seed.service /usr/lib/systemd/random-seed Description systemd-random-seed.service is a service that loads an on-disk random seed into the kernel entropy pool during boot and saves it at shutdown. See random(4) for details. By default, no entropy is credited when the random seed is…

systemd-quotacheck.service, systemd-quotacheck – File system quota checker logic Synopsis systemd-quotacheck.service /lib/systemd/systemd-quotacheck Description systemd-quotacheck.service is a service responsible for file system quota checks. It is run once at boot after all necessary file systems are mounted. It is pulled in only if at least one file system has quotas enabled. Kernel Command Line systemd-quotacheck understands one…

systemd-quotacheck.service, systemd-quotacheck – File system quota checker logic Synopsis systemd-quotacheck.service /lib/systemd/systemd-quotacheck Description systemd-quotacheck.service is a service responsible for file system quota checks. It is run once at boot after all necessary file systems are mounted. It is pulled in only if at least one file system has quotas enabled. Kernel Command Line systemd-quotacheck understands one…

systemd-pstore.service, systemd-pstore – A service to archive contents of pstore Synopsis /lib/systemd/systemd-pstore systemd-pstore.service Description systemd-pstore.service is a system service that archives the contents of the Linux persistent storage filesystem, pstore, to other storage, thus preserving the existing information contained in the pstore, and clearing pstore storage for future error events. Linux provides a persistent storage…

systemd-pstore.service, systemd-pstore – A service to archive contents of pstore Synopsis /lib/systemd/systemd-pstore systemd-pstore.service Description systemd-pstore.service is a system service that archives the contents of the Linux persistent storage filesystem, pstore, to other storage, thus preserving the existing information contained in the pstore, and clearing pstore storage for future error events. Linux provides a persistent storage…

systemd-halt.service, systemd-poweroff.service, systemd-reboot.service, systemd-kexec.service, systemd-shutdown – System shutdown logic Synopsis systemd-halt.service systemd-poweroff.service systemd-reboot.service systemd-kexec.service /lib/systemd/systemd-shutdown /lib/systemd/system-shutdown/ Description systemd-halt.service is a system service that is pulled in by halt.target and is responsible for the actual system halt. Similarly, systemd-poweroff.service is pulled in by poweroff.target, systemd-reboot.service by reboot.target and systemd-kexec.service by kexec.target to execute the respective actions….

systemd-halt.service, systemd-poweroff.service, systemd-reboot.service, systemd-kexec.service, systemd-shutdown – System shutdown logic Synopsis systemd-halt.service systemd-poweroff.service systemd-reboot.service systemd-kexec.service /usr/lib/systemd/systemd-shutdown Description systemd-halt.service is a system service that is pulled in by halt.target and is responsible for the actual system halt. Similarly, systemd-poweroff.service is pulled in by poweroff.target, systemd-reboot.service by reboot.target and systemd-kexec.service by kexec.target to execute the respective actions. When…

systemd-networkd.service, systemd-networkd – Network manager Synopsis systemd-networkd.service /lib/systemd/systemd-networkd Description systemd-networkd is a system service that manages networks. It detects and configures network devices as they appear, as well as creating virtual network devices. To configure low-level link settings independently of networks, see systemd.link(5). systemd-networkd will create network devices based on the configuration in systemd.netdev(5) files,…

systemd-networkd.service, systemd-networkd – Network manager Synopsis systemd-networkd.service /lib/systemd/systemd-networkd Description systemd-networkd is a system service that manages networks. It detects and configures network devices as they appear, as well as creating virtual network devices. To configure low-level link settings independently of networks, see systemd.link(5). systemd-networkd will create network devices based on the configuration in systemd.netdev(5) files,…

systemd-networkd-wait-online.service, systemd-networkd-wait-online – Wait for network to come online Synopsis systemd-networkd-wait-online.service /lib/systemd/systemd-networkd-wait-online Description systemd-networkd-wait-online is a oneshot system service (see systemd.service(5)), that waits for the network to be configured. By default, it will wait for all links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for…

systemd-networkd-wait-online.service, systemd-networkd-wait-online – Wait for network to come online Synopsis systemd-networkd-wait-online.service /lib/systemd/systemd-networkd-wait-online Description systemd-networkd-wait-online is a oneshot system service (see systemd.service(5)), that waits for the network to be configured. By default, it will wait for all links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for…

systemd-network-generator.service, systemd-network-generator – Generate network configuration from the kernel command line Synopsis systemd-network-generator.service /lib/systemd/systemd-network-generator Description systemd-network-generator.service is a system service that translates ip= and the related settings on the kernel command line (see below) into systemd.network(5), systemd.netdev(5), and systemd.link(5) configuration files understood by systemd-networkd.service(8) and systemd-udevd.service(8). Files are generated in /run/systemd/network/. Kernel Command Line Options…

systemd-network-generator.service, systemd-network-generator – Generate network configuration from the kernel command line Synopsis systemd-network-generator.service /lib/systemd/systemd-network-generator Description systemd-network-generator.service is a system service that translates ip= and the related settings on the kernel command line (see below) into systemd.network(5), systemd.netdev(5), and systemd.link(5) configuration files understood by systemd-networkd.service(8) and systemd-udevd.service(8). Files are generated in /run/systemd/network/. Kernel Command Line Options…

systemd-modules-load.service, systemd-modules-load – Load kernel modules at boot Synopsis systemd-modules-load.service /lib/systemd/systemd-modules-load Description systemd-modules-load.service is an early boot service that loads kernel modules. It reads static configuration from files in /usr/ and /etc/, but also runtime configuration from /run/ and the kernel command line (see below). See modules-load.d(5) for information about the configuration format of this…

systemd-modules-load.service, systemd-modules-load – Load kernel modules at boot Synopsis systemd-modules-load.service /lib/systemd/systemd-modules-load Description systemd-modules-load.service is an early boot service that loads kernel modules. It reads static configuration from files in /usr/ and /etc/, but also runtime configuration from /run/ and the kernel command line (see below). See modules-load.d(5) for information about the configuration format of this…

systemd-makefs [at] .service, systemd-mkswap [at] .service, systemd-growfs [at] .service, systemd-makefs, systemd-growfs – Creating and growing file systems on demand Synopsis systemd-makefs@device.service systemd-mkswap@device.service systemd-growfs@mountpoint.service /lib/systemd/systemd-makefs /lib/systemd/systemd-growfs Description systemd-makefs [at] .service, systemd-mkswap [at] .service, and systemd-growfs [at] .service are used to implement the x-systemd.makefs and x-systemd.growfs options in fstab(5), see systemd.mount(5). They are instantiated for each device…