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

[Jim Kinney]

Hmm. Newer kernels use sdX devices for USB. maybe root=/dev/sda1 ?

2009/1/2 Courtney Thomas <courtneycthomas at bellsouth.net>

>  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 <jim.kinney at gmail.com>
> *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
>> _______________________________________________
>> Ale mailing list
>> Ale at ale.org
>> http://mail.ale.org/mailman/listinfo/ale
>>
>
>
>
> --
> --
> James P. Kinney III
>
>  ------------------------------
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
>
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
>
>


-- 
-- 
James P. Kinney III
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.ale.org/pipermail/ale/attachments/20090102/ff21a1fe/attachment.html