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glaucus

finit

TODO

Section titled “TODO”

Other

Section titled “Other”
  • Check if finit handles devtmpfs, /proc and /sys automatically
  • Check if finit handles /dev/pts automatically with the correct permissions
  • Check if finit handles /dev/shm automatically with the correct permissions 1777
  • Check if long-run services are still stored in finit.conf and that oneshots are in rc.local
  • Check if finit falls back to /bin/sh if no ttys are configured in /etc/finit.conf
  • Check if finit handles efivars automatically and mounts it at /sys/efi/firmware/efivars (like booster)
  • Check if the fallback shell is good enough to be used in an initramfs and in rescue environments
  • By default all services, tasks, run commands and TTYs listed without a set of runlevels get a default set [234] assigned
  • Check if we need cgroup2 to be used as older versions rely on tmpfs on /sys/fs/cgroup

Configure

Section titled “Configure”
  • It is recommended to enable auto-reload (unlike s6 which requires an explicit database compilation)
  • kernel-cmdline, fastboot and fsckfix are disabled by default
  • It is not recommended to enable kernel-cmdline and fsckfix
  • Explicitly use --enable-fastboot to skip fsck (similar to s6-linux-init which ignores -f and -F for compatibility)
  • Explicitly use --disable-logrotate as we no longer provide utmp and wtmp support
  • Explicitly use --disable-dbus-plugin even with --disable-dbus as it is implicitly set to auto

Other

Section titled “Other”
  • finit version 4 is not compatible with version 3
  • finit version 5 provides its own device manager keventd
  • finit probes all installed device managers (so never have mdevd installed alongside keventd)
  • Prefer higher baudrates 115200 to 38400 for faster data transfer
  • Check if further logging (/var/log/{dmesg,messages,syslog}) is required
  • Do not provide /usr/bin/modules-load and /etc/sysctl.d (systemd stuff)
  • Do not forget to check for wrong permissions 1000:1000 on iso
  • /dev/fd exists on other unices and is provided under linux for compatibility whereas /proc/*/fd is specific to linux
  • fsck depends on /sys
  • sysctl() the syscall is officially deprecated, but the binary sysctl is what is recommended nowadays and uses /proc/sys
  • .ICE-unix and .X11-unix in /tmp belong to xorg and have been removed
  • Pseudo-filesystems (like cgroups and tmpfs) may fail to unmount at the end of shutdown (this usually does not result in data loss)

References

Section titled “References”