diff options
| -rw-r--r-- | bootscripts/lfs/init.d/mountvirtfs | 8 | ||||
| -rw-r--r-- | chapter09/usage.xml | 22 | ||||
| -rw-r--r-- | chapter10/kernel.xml | 31 |
3 files changed, 44 insertions, 17 deletions
diff --git a/bootscripts/lfs/init.d/mountvirtfs b/bootscripts/lfs/init.d/mountvirtfs index 3507beea7..639634377 100644 --- a/bootscripts/lfs/init.d/mountvirtfs +++ b/bootscripts/lfs/init.d/mountvirtfs @@ -2,7 +2,7 @@ ######################################################################## # Begin mountvirtfs # -# Description : Mount proc, sysfs, and run +# Description : Ensure proc, sysfs, run, and dev are mounted # # Authors : Gerard Beekmans - gerard@linuxfromscratch.org # DJ Lucas - dj@linuxfromscratch.org @@ -20,10 +20,12 @@ # Should-Stop: # Default-Start: S # Default-Stop: -# Short-Description: Mounts /sys and /proc virtual (kernel) filesystems. -# Mounts /run (tmpfs) and /dev (devtmpfs). +# Short-Description: Mounts various special fs needed at start # Description: Mounts /sys and /proc virtual (kernel) filesystems. # Mounts /run (tmpfs) and /dev (devtmpfs). +# This is done only if they are not already mounted. +# with the kernel config proposed in the book, dev +# should be automatically mounted by the kernel. # X-LFS-Provided-By: LFS ### END INIT INFO diff --git a/chapter09/usage.xml b/chapter09/usage.xml index 6f8d7a03f..33890acd2 100644 --- a/chapter09/usage.xml +++ b/chapter09/usage.xml @@ -35,12 +35,22 @@ <literallayout>0: halt the computer 1: single-user mode -2: multi-user mode without networking +2: reserved for customization, otherwise does the same as 3 3: multi-user mode with networking 4: reserved for customization, otherwise does the same as 3 -5: same as 4, it is usually used for GUI login (like X's <command>xdm</command> or KDE's <command>kdm</command>) +5: same as 4, it is usually used for GUI login (like GNOME's <command>gdm</command> or LXDE's <command>lxdm</command>) 6: reboot the computer</literallayout> + <note> + <para> + Classically, run level 2 above was defined as + "multi-user mode without networking", but this was only the case + many years ago when multiple users could log into a system connected via + serial ports. In today's environment it makes no sense and + we designate it now as "reserved". + </para> + </note> + </sect2> <sect2 id="conf-sysvinit" role="configuration"> @@ -127,7 +137,7 @@ EOF</userinput></screen> <para>There are a number of directories under <filename class="directory">/etc/rc.d</filename> that look like <filename class="directory">rc?.d</filename> (where ? is the number of the run-level) and - <filename class="directory">rcsysinit.d</filename>, all containing a number of + <filename class="directory">rcS.d</filename>, all containing a number of symbolic links. Some begin with a <emphasis>K</emphasis>, the others begin with an <emphasis>S</emphasis>, and all of them have two numbers following the initial letter. The K means to stop (kill) a service and the S means to start a @@ -155,7 +165,11 @@ EOF</userinput></screen> to be started. They will be called with the parameter <parameter>stop</parameter> to stop something. The logic behind this is that when a user is going to reboot or halt the system, nothing - needs to be started. The system only needs to be stopped.</para> + needs to be started, but the order of shutdown needs to be controlled. + For these run levels, all <emphasis>K</emphasis> prefixed scripts will be + run before any <emphasis>S</emphasis> prefixed scripts are run with the + <parameter>stop</parameter> parameter. + </para> <para>These are descriptions of what the arguments make the scripts do:</para> diff --git a/chapter10/kernel.xml b/chapter10/kernel.xml index 43177f15d..713bab93b 100644 --- a/chapter10/kernel.xml +++ b/chapter10/kernel.xml @@ -113,38 +113,40 @@ Device Drivers ---> [*] Support for frame buffer devices ---- Generic Driver Options ---> [ ] Support for uevent helper [CONFIG_UEVENT_HELPER] - [*] Maintain a devtmpfs filesystem to mount at /dev [CONFIG_DEVTMPFS]</screen> + [*] Maintain a devtmpfs filesystem to mount at /dev [CONFIG_DEVTMPFS] + [*] Automount devtmpfs at /dev, after the kernel mounted the rootfs [CONFIG_DEVTMPFS_MOUNT]</screen> <screen role="nodump" revision="systemd">General setup --> [ ] Auditing Support [CONFIG_AUDIT] + CPU/Task time and stats accounting ---> + [*] Pressure stall information tracking [CONFIG_PSI] < > Enable kernel headers through /sys/kernel/kheaders.tar.xz [CONFIG_IKHEADERS] [*] Control Group support [CONFIG_CGROUPS] ---> [*] Memory controller [CONFIG_MEMCG] [ ] Enable deprecated sysfs features to support old userspace tools [CONFIG_SYSFS_DEPRECATED] [*] Configure standard kernel features (expert users) [CONFIG_EXPERT] ---> [*] open by fhandle syscalls [CONFIG_FHANDLE] - CPU/Task time and stats accounting ---> - [*] Pressure stall information tracking [CONFIG_PSI] General architecture-dependent options ---> [*] Enable seccomp to safely compute untrusted bytecode [CONFIG_SECCOMP] Networking support ---> Networking options ---> <*> The IPv6 protocol [CONFIG_IPV6] Device Drivers ---> - Firmware Drivers ---> - [*] Export DMI identification via sysfs to userspace [CONFIG_DMIID] - Graphics support ---> - Frame buffer Devices ---> - [*] Support for frame buffer devices ---- Generic Driver Options ---> [ ] Support for uevent helper [CONFIG_UEVENT_HELPER] [*] Maintain a devtmpfs filesystem to mount at /dev [CONFIG_DEVTMPFS] + [*] Automount devtmpfs at /dev, after the kernel mounted the rootfs [CONFIG_DEVTMPFS_MOUNT] Firmware Loader ---> [ ] Enable the firmware sysfs fallback mechanism [CONFIG_FW_LOADER_USER_HELPER] + Firmware Drivers ---> + [*] Export DMI identification via sysfs to userspace [CONFIG_DMIID] + Graphics support ---> + Frame buffer Devices ---> + <*> Support for frame buffer devices ---> File systems ---> [*] Inotify support for userspace [CONFIG_INOTIFY_USER] - Pseudo filesystems ---> - [*] Tmpfs POSIX Access Control Lists [CONFIG_TMPFS_POSIX_ACL]</screen> + Pseudo filesystems ---> + [*] Tmpfs POSIX Access Control Lists [CONFIG_TMPFS_POSIX_ACL]</screen> </note> <note revision="systemd"> @@ -199,6 +201,15 @@ File systems ---> </listitem> </varlistentry> + <varlistentry> + <term><parameter>Automount devtmpfs at /dev</parameter></term> + <listitem> + <para>This will mount the kernel view of the devices on /dev + upon switching to root filesystem just before starting + init.</para> + </listitem> + </varlistentry> + </variablelist> <para>Alternatively, <command>make oldconfig</command> may be more |