Cleanup and update documentation

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>

1 files changed, 0 insertions, 74 deletions

diff --git a/docs/bootup.md b/docs/bootup.md
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-# System Bootup Process
-
-## Initial Ram Disk to Rootfs transition
-
-After mounting the root filesystem, either the kernel or the initial ram disk
-startup process is expected to exec the init program from the root filesystem.
-
-At the current time, there is no support for re-scanning the service files
-*yet*, so when init is started, the final configuration in `/etc/init.d` has to
-be present. As a result, we currently cannot perform mounting of `/etc/` or
-packing init into the initial ram disk and doing the rootfs transition.
-
-Also, as a result of this, changing the service configuration requires a system
-reboot to be effective.
-
-This _will_ change in the future.
-
-
-## Processing Service Descriptions
-
-The init process reads service description files from `/etc/init.d` which are
-usually symlinks to actual files in `/usr/share/init`.
-
-The exact locations may be changed through configure flags when compiling init.
-
-Service files specify a *target* which is basically like a SystemV runlevel and
-can be one of the following:
-
-* boot
-* reboot
-* shutdown
-* ctrlaltdel
-
-After parsing the configuration files, the init process starts running the
-services for the `boot` target in a topological order as determined by their
-*before* and *after* dependencies.
-
-Services can be of one of the following *types*:
-
-* wait
-* once
-* respawn
-
-Services of type `wait` are started exactly once and the init process waits
-until they terminate before continuing with other services.
-
-The type `once` also only runs services once, but immediately continues
-starting other services in the mean time without waiting.
-
-Services of type `respawn` also don't stall the init process and are re-started
-whenever they terminate.
-
-## Service Process Setup
-
-If a service description contains only a single `exec` line, the init process
-forks and then execs the command directly in the child process.
-
-If the service description contains a `tty` field, the specified device file
-is opened in the child process and standard I/O is redirected to it before
-calling exec. Also, a new session is created.
-
-
-If a service description contains multiple `exec` lines, the init process forks
-off to a single child process that does the same setup as above, and then runs
-the command lines sequentially by forking a second time for each one, followed
-by an exec in the grand child and a wait in the original child.
-
-If a single command line returns something other than `EXIT_SUCCESS`,
-processing of multiple command lines is immediately stopped and the offending
-exit status is returned to init.
-
-
-The init process reads environment variables from `/etc/initd.env`.
-