[ale] scrambled screen tryin' to boot an Isolinux.iso, huh ?

[Courtney Thomas]

Thanks Jim.

Any idea how to assign [at the boot prompt by pressing <shift> ] a USB jumpdrive to be used for "root="   ?

Cordially,

Courtney
  ----- Original Message ----- 
  From: Jim Kinney 
  To: ale at ale.org 
  Sent: Friday, January 02, 2009 2:53 PM
  Subject: Re: [ale] scrambled screen tryin' to boot an Isolinux.iso, huh ?


  Framebuffer is a low-level video thing that writes video bits to video ram and to the graphics chip.  You may need to try some different video= lines. I don't know isolinux details so you'll have to dig on their site for specific settings. But I'll bet that something like video=vga may get you a working screen.

  You will need the framebuffer stuff compiled into the kernel to use it.

  AH! You need to spec framebuffer mode like 788, etc. Knoppix has good details on this.

  Found this on http://www.linuxsir.org/bbs/archive/index.php/t-168922.html:

  My isolinux.cfg looks like this:

  timeout 30
  prompt 1
  display menu.txt
  default 1
  label 1
  kernel vmlinuz
  append initrd=initrd.gz

  label 2
  kernel vmlinuz
  append initrd=initrd.gz vga=788

  label 3
  kernel vmlinuz
  append initrd=initrd.gz vga=791

  menu.txt is a simple text file that looks like:

  1) Text Mode
  2) 800x600 x 16bit colour
  3) 1024x768 x 16bit colour

  The user just enters '1' if they want text mode, 2 for 800x600 and so on.


  On Thu, Jan 1, 2009 at 5:52 PM, Courtney Thomas <courtneycthomas at bellsouth.net> wrote:

    Attempting to bootup a live Isolinux iso on a Dell Latitude C810 portable,
    I'm getting a screen scrambled with almost impenetrable horizontal lines
    though I can see the blurred GUI 'behind'.

    I'd like to mount root on a USB jump drive.

    What would be a manually entered [at bootup] command that should
    get this thing going, please ?

    I've tried [a guess] of :

       /boot/linux append root=/dev/usb0 video=ask panic=10

    but get nothing but kernel panics.

    By the way, what's a framebuffer all about ?

    Happy New Year !

    Courtney
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  -- 
  -- 
  James P. Kinney III               




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