Ignore:
Timestamp:
May 29, 2006, 2:45:38 AM (18 years ago)
Author:
Jeremy Utley <jerutley@…>
Branches:
clfs-1.2, clfs-2.1, clfs-3.0.0-systemd, clfs-3.0.0-sysvinit, master, systemd, sysvinit
Children:
a8952fe
Parents:
7eb92df
Message:

Mount --bind host /dev to LFS's dev on chroot builds - fixes ticket #27

File:
1 edited

Legend:

Unmodified
Added
Removed

  • BOOK/chroot/common/devices.xml

    r7eb92df r27e1607  
    99  <?dbhtml filename="devices.html"?>
    1010
    11   <title>Populating /dev</title>
     11  <title>Mounting Kernel Filesystems</title>
    1212
    1313  <indexterm zone="ch-chroot-devices">
    … …  
    1616
    1717  <sect2>
    18     <title>Creating Initial Device Nodes</title>
     18    <title>Mounting Additional Kernel Filesystems</title>
    1919
    20     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
    21     href="../../boot/common/devices.xml"
    22     xpointer="xpointer(//*[@os='b'])"/>
    23 
    24 <screen><userinput>mknod -m 600 /dev/console c 5 1
    25 mknod -m 666 /dev/null c 1 3</userinput></screen>
    26 
    27   </sect2>
    28 
    29   <sect2>
    30     <title>Mounting tmpfs and Populating /dev</title>
    31 
    32     <para>The recommended method of populating the <filename
    33     class="directory">/dev</filename> directory with devices is to
    34     mount a virtual filesystem (such as <systemitem
    35     class="filesystem">tmpfs</systemitem>) on the <filename
    36     class="directory">/dev</filename> directory, and allow the devices
    37     to be created dynamically on that virtual filesystem as they are
    38     detected or accessed. This is generally done during the boot process.
    39     Since this new system has not been booted, it is necessary to do what
    40     the LFS-Bootscripts package would otherwise do by mounting <filename
    41     class="directory">/dev</filename>:</para>
    42 
    43 <screen><userinput>mount -n -vt tmpfs none /dev</userinput></screen>
    44 
    45     <para>The Udev package is what actually creates the devices in the
    46     <filename class="directory">/dev</filename> directory. Since it will
    47     not be installed until later on in the process, manually create the
    48     minimal set of device nodes needed to complete the building of this
    49     system:</para>
    50 
    51 <screen><userinput>mknod -m 622 /dev/console c 5 1
    52 mknod -m 666 /dev/null c 1 3
    53 mknod -m 666 /dev/zero c 1 5
    54 mknod -m 666 /dev/ptmx c 5 2
    55 mknod -m 666 /dev/tty c 5 0
    56 mknod -m 444 /dev/random c 1 8
    57 mknod -m 444 /dev/urandom c 1 9
    58 chown -v root:tty /dev/{console,ptmx,tty}</userinput></screen>
    59 
    60     <para>There are some symlinks and directories required by LFS that
    61     are created during system startup by the LFS-Bootscripts package. Since
    62     this is a chroot environment and not a booted environment, those symlinks
    63     and directories need to be created here:</para>
    64 
    65 <screen><userinput>ln -sv /proc/self/fd /dev/fd
    66 ln -sv /proc/self/fd/0 /dev/stdin
    67 ln -sv /proc/self/fd/1 /dev/stdout
    68 ln -sv /proc/self/fd/2 /dev/stderr
    69 ln -sv /proc/kcore /dev/core
    70 mkdir -v /dev/pts
    71 mkdir -v /dev/shm</userinput></screen>
    72 
    73     <para>Finally, mount the proper virtual (kernel) file systems on the
     20    <para>Mount the proper virtual (kernel) file systems on the
    7421    newly-created directories:</para>
    7522
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