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Diffstat (limited to '0009-dracut.asc-small-corrections.patch')
| -rw-r--r-- | 0009-dracut.asc-small-corrections.patch | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/0009-dracut.asc-small-corrections.patch b/0009-dracut.asc-small-corrections.patch new file mode 100644 index 0000000..6389b32 --- /dev/null +++ b/0009-dracut.asc-small-corrections.patch @@ -0,0 +1,198 @@ +From 89f7217954231dc11307cc481f1e3ca8ad3ad001 Mon Sep 17 00:00:00 2001 +From: Harald Hoyer <harald@redhat.com> +Date: Mon, 5 Aug 2013 11:22:55 +0200 +Subject: [PATCH] dracut.asc: small corrections + +--- + dracut.asc | 75 ++++++++++++++------------------------------------------------ + 1 file changed, 16 insertions(+), 59 deletions(-) + +diff --git a/dracut.asc b/dracut.asc +index 4de3dbf..dfad67e 100644 +--- a/dracut.asc ++++ b/dracut.asc +@@ -777,25 +777,12 @@ scripts and udev rules. + [[stages]] + == Boot Process Stages + +-The init script in _99base_ is the main script, which prepares the root file +-system for usage, runs udev, mounts the real root device, kills the remaining +-processes, and switches to the real root device for further booting. dracut +-modules can insert custom script at various points, to control the boot process. ++dracut modules can insert custom script at various points, to control the boot ++process. + These hooks are plain directories containing shell scripts ending with ".sh", + which are sourced by init. + Common used functions are in _dracut-lib.sh_, which can be sourced by any script. + +- +- +-=== Basic Setup +- +-The first thing init does, is to mount _/proc_ and _/sys_ and manually create +-the basic device nodes and symbolic links in _/dev_ needed to execute basic +-commands. Then logging is setup according to kernel command line arguments. +-_/dev/pts_ and _/dev/shm_ are mounted and the first hook is sourced. +- +- +- + === Hook: cmdline + + The _cmdline_ hook is a place to insert scripts to parse the kernel command line +@@ -813,63 +800,49 @@ This hook is executed right after the cmdline hook and a check if root and + rootok were set. Here modules can take action with the final root, and before + udev has been run. + +- +- + === Start Udev + + Now udev is started and the logging for udev is setup. + +- +- + === Hook: pre-trigger + + In this hook, you can set udev environment variables with **udevadm control + --property=KEY=_value_** or control the further execution of udev with + udevadm. + +- +- + === Trigger Udev + + udev is triggered by calling udevadm trigger, which sends add events for all + devices and subsystems. + +- +- + === Main Loop + +-Now the main loop of 99base/init begins. Here we loop until udev has settled and +-all scripts in _initqueue/finished_ returned true. In this loop there are three +-hooks, where scripts can be inserted by calling /sbin/initqueue. +- +- ++In the main loop of dracut loops until udev has settled and ++all scripts in _initqueue/finished_ returned true. ++In this loop there are three hooks, where scripts can be inserted ++by calling /sbin/initqueue. + + ==== Initqueue + + This hook gets executed every time a script is inserted here, regardless of the + udev state. + +- +- + ==== Initqueue settled + +-This hooks gets executed every time udev has settled. +- ++This hooks (initqueue/settled) gets executed every time udev has settled. + + + ==== Initqueue timeout + +-This hooks gets executed, when the main loop counter becomes half of the ++This hooks (initqueue/timeout) gets executed, when the main loop counter becomes half of the + rd.retry counter. + +- +- + ==== Initqueue finished + +-This hook is called after udev has settled and if all scripts herein return 0 +-the main loop will be ended. +- +- ++This hook (initqueue/finished) is called after udev has settled and ++if all scripts herein return 0 the main loop will be ended. ++Abritary scripts can be added here, to loop in the ++initqueue until something happens, which a dracut module wants to wait for. + + === Hook: pre-mount + +@@ -877,20 +850,15 @@ Before the root device is mounted all scripts in the hook pre-mount are + executed. In some cases (e.g. NFS) the real root device is already mounted, + though. + +- +- + === Hook: mount + + This hook is mainly to mount the real root device. + +- +- + === Hook: pre-pivot + + This hook is called before cleanup hook, This is a good place for + actions other than cleanups which need to be called before pivot. + +- + === Hook: cleanup + + This hook is the last hook and is called before init finally switches root to +@@ -900,21 +868,18 @@ needed anymore. + + === Cleanup and switch_root + +-Init kills all udev processes, cleans up the environment, sets up the arguments +-for the real init process and finally calls switch_root. switch_root removes the +-whole filesystem hierarchy of the initramfs, chroot()s to the real root device +-and calls /sbin/init with the specified arguments. ++Init (or systemd) kills all udev processes, cleans up the environment, ++sets up the arguments for the real init process and finally calls switch_root. ++switch_root removes the whole filesystem hierarchy of the initramfs, ++chroot()s to the real root device and calls /sbin/init with the specified arguments. + + To ensure all files in the initramfs hierarchy can be removed, all processes + still running from the initramfs should not have any open file descriptors left. + +- +- + == Network Infrastructure + + FIXME + +- + == Writing a Module + + A simple example module is _96insmodpost_, which modprobes a kernel module after +@@ -926,8 +891,6 @@ First we create a check() function, which just exits with 0 indicating that this + module should be included by default. + + check(): +- +- + ---- + return 0 + ---- +@@ -937,8 +900,6 @@ priority number 20 called _parse-insmodpost.sh_. It also installs the + _insmodpost.sh_ script in _/sbin_. + + install(): +- +- + ---- + inst_hook cmdline 20 "$moddir/parse-insmodpost.sh" + inst_simple "$moddir/insmodpost.sh" /sbin/insmodpost.sh +@@ -949,8 +910,6 @@ rd.driver.post, blacklists the module from being autoloaded and installs the + hook _insmodpost.sh_ in the _initqueue/settled_. + + _parse-insmodpost.sh_: +- +- + ---- + for p in $(getargs rd.driver.post=); do + echo "blacklist $p" >> /etc/modprobe.d/initramfsblacklist.conf +@@ -967,8 +926,6 @@ modprobe the kernel modules specified in all rd.driver.post kernel command line + parameters. It runs after udev has settled and is only called once (--onetime). + + _insmodpost.sh_: +- +- + ---- + . /lib/dracut-lib.sh + |