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Re: boot log



Hoi Dirk,


On Fri, May 25, 2007 at 07:44:56PM +0200, Dirk Salva wrote:
> On Fri, May 25, 2007 at 01:12:30PM +0200, Robert Walter wrote:
> > Da ich keinen Displaymanager (kdm,xdm,gdm) verwende, sondern von Hand
> > mit startx mein X starte, und somit auf 'ner Konsole lande nach den
> > Starten, habe ich die Möglichkeit, mit shift und
> > Bild-auf/Bild-ab/hoch/runter den Bootvorgang nachzuverfolgen. Bei der
> > Methode "pause" zu drücken kommt es doch arg auf's Timing an. ;-)
> 
> Da kommt man aber nicht bis an den Anfang. Ich zumindest nicht.


Beim nächsten Compilieren des Kernels ist das sehr brauchbar:

CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=256


aus:  /usr/src/linux/drivers/video/console/Kconfig 
      Kernel ist 2.6.18.


config VGACON_SOFT_SCROLLBACK
       bool "Enable Scrollback Buffer in System RAM"
       depends on VGA_CONSOLE
       default n
       help
         The scrollback buffer of the standard VGA console is located in
         the VGA RAM.  The size of this RAM is fixed and is quite small.
         If you require a larger scrollback buffer, this can be placed in
         System RAM which is dynamically allocated during intialization. 
         Placing the scrollback buffer in System RAM will slightly slow  
         down the console.

         If you want this feature, say 'Y' here and enter the amount of
         RAM to allocate for this buffer.  If unsure, say 'N'.

config VGACON_SOFT_SCROLLBACK_SIZE
       int "Scrollback Buffer Size (in KB)"
       depends on VGACON_SOFT_SCROLLBACK   
       default "64"
       help
         Enter the amount of System RAM to allocate for the scrollback
         buffer.  Each 64KB will give you approximately 16 80x25
         screenfuls of scrollback buffer



Gruß Bernhard



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