Changes between Version 4 and Version 5 of Documentation/SupportedImages/BuildingBaselineImage

Timestamp:

Jan 25, 2012, 10:00:24 PM (13 years ago)

Author:

ssugrim

Comment:

—

Documentation/SupportedImages/BuildingBaselineImage

@@ -9 +9 @@
   * Getty serial config (for loggin in from the serial console, other wise it looks like it hangs)
  * Setting Root user to have password less login (and dropping all other user records)
+  * Modifying console logins (for serial console)
+  * Modifying ssh logins (the two coupled)
  * removing unnecessary packages to minimize image size
  * installing necessary omf/oml packages
@@ -17 +19 @@
 
 === Ubuntu 11.10 ===
-1. To configure grub/kernel messages to goto serial add/modify the following lines in /etc/default/grub and run update-grub:
-   {{{
-   GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8"
-   GRUB_TERMINAL=serial
-   GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
-   }}}
-   To configure the serial console for login create a file named /etc/init/ttyS0.conf and give it the following contents:
-   {{{
-   # ttyS0 - getty
-   #
-   # This service maintains a getty on ttyS0 from the point the system is
-   # started until it is shut down again.
+ 1. To configure grub/kernel messages to goto serial add/modify the following lines in /etc/default/grub and run update-grub:
+    {{{
+    GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8"
+    GRUB_TERMINAL=serial
+    GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
+    }}}
+    To configure the serial console for login create a file named /etc/init/ttyS0.conf and give it the following contents:
+    {{{
+    # ttyS0 - getty
+    #
+    # This service maintains a getty on ttyS0 from the point the system is
+    # started until it is shut down again.
 
-   start on stopped rc or RUNLEVEL=[2345]
-   stop on runlevel [!2345]
-   
-   respawn
-   exec /sbin/getty -L 115200 ttyS0 vt102
-   }}}
-   then start it with up start:
-   {{{
-   sudo start ttyS0
-   }}}
+    start on stopped rc or RUNLEVEL=[2345]
+    stop on runlevel [!2345]
+    
+    respawn
+    exec /sbin/getty -L 115200 ttyS0 vt102
+    }}}
+    then start it with up start:
+    {{{
+    sudo start ttyS0
+    }}}
  1. To configure root with no password edit /etc/shadow, the first line should look like:
-   {{{
-   root:!:15363:0:99999:7:::
-   }}}
-   remove the ! that follows the root. This will make the root account active and set the password to nil. Console logins for root will now 
-   not require a password. [[BR]]
-   [[BR]]
-   To get ssh to accept the changes we need to modify /etc/ssh/sshd_config make sure a couple of lines have specific values. They are:
-   {{{
-   PermitRootLogin yes
-   StrictModes no
-   PermitEmptyPasswords yes
-   UsePAM no
-   }}}
+    {{{
+    root:!:15363:0:99999:7:::
+    }}}
+    remove the ! that follows the root. This will make the root account active and set the password to nil. Console logins for root will now 
+    not require a password. [[BR]]
+    [[BR]]
+    To get ssh to accept the changes we need to modify /etc/ssh/sshd_config make sure a couple of lines have specific values. They are:
+    {{{
+    PermitRootLogin yes
+    StrictModes no
+    PermitEmptyPasswords yes
+    UsePAM no
+    }}}