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diff --git a/docs/troubleshooting/md-system.md b/docs/troubleshooting/md-system.md deleted file mode 100644 index e855e385..00000000 --- a/docs/troubleshooting/md-system.md +++ /dev/null @@ -1,48 +0,0 @@ -# System Information - -(boot-steps)= - -## Boot Steps - -VyOS 1.2 uses [Debian Jessie] as the base Linux operating system. Jessie was -the first version of Debian that uses [systemd] as the default init system. - -These are the boot steps for VyOS 1.2 - -1. The BIOS loads Grub (or isolinux for the Live CD) -2. Grub then starts the Linux boot and loads the Linux Kernel `/boot/vmlinuz` -3. Kernel Launches Systemd `/lib/systemd/systemd` -4. Systemd loads the VyOS service file - `/lib/systemd/system/vyos-router.service` -5. The service file launches the VyOS router init script - `/usr/libexec/vyos/init/vyos-router` - this is part of the [vyatta-cfg] - Debian package - -> 1. Starts [FRR] - successor to [GNU Zebra] and [Quagga] -> 2. Initialises the boot configuration file - copies over -> `config.boot.default` if there is no configuration -> 3. Runs the configuration migration, if the configuration is for an older -> version of VyOS -> 4. Runs The pre-config script, if there is one -> `/config/scripts/vyos-preconfig-bootup.script` -> 5. If the config file was upgraded, runs any post upgrade scripts -> `/config/scripts/post-upgrade.d` -> 6. Starts `rl-system` and `firewall` -> 7. Mounts the `/boot` partition -> 8. The boot configuration file is then applied by `/opt/vyatta/sbin/vyatta-boot-config-loader/opt/vyatta/etc/config/config.boot` -> -> > 1. The config loader script writes log entries to -> > `/var/log/vyatta-config-loader.log` -> -> 09. Runs `telinit q` to tell the init system to reload `/etc/inittab` -> 10. Finally it runs the post-config script -> `/config/scripts/vyos-postconfig-bootup.script` - -[debian jessie]: https://www.debian.org/releases/jessie/ -[frr]: https://frrouting.org/ -[gnu zebra]: https://www.gnu.org/software/zebra/ -[pcap filter expressions]: http://www.tcpdump.org/manpages/pcap-filter.7.html -[quagga]: https://www.quagga.net/ -[systemd]: https://freedesktop.org/wiki/Software/systemd/ -[tshark]: https://www.wireshark.org/docs/man-pages/tshark.html -[vyatta-cfg]: https://github.com/vyos/vyatta-cfg |