1 .. -*- coding: utf-8; -*-

     2 .. include:: HEADER.rst

     3 

     4 ========

     5  Linux.

     6 ========

     7 .. contents::

     8 

     9 Linux distro.

    10 =============

    11 

    12   http://distrowatch.com/

    13                 Comparing Linux distros.

    14 

    15 SysRq.

    16 ======

    17 ::

    18 

    19   x86: ALT-SysRq-<command key>

    20   SPARC: ALT-STOP-<command key>

    21   PPC: ALT - Print Screen (or F13) - <command key>

    22 

    23   'b' - reboot

    24   'p' - dump the current registers and flags to your console

    25   'r' - take control of keyboard back from X

    26   'e' - send SIGTERM to all processes, except for init

    27   'i' - send SIGKILL to all processes, except for init

    28   's' - attempt to sync all mounted filesystems

    29   'u' - remount all filesystems read-only

    30 

    31 You can put one of such line::

    32 

    33   $ echo 0 > /proc/sys/kernel/sysrq  # disable

    34   $ echo 1 > /proc/sys/kernel/sysrq  # enable

    35 

    36 to your /etc/rc.local or alternativaly place under /etc/sysctl::

    37 

    38   kernel.sysrq = 1

    39 

    40   http://www.kernel.org/doc/Documentation/sysrq.txt

    41                 Linux Magic System Request Key Hacks