BootX, ramdisk and root device

BootX, ramdisk and root device

[Benjamin Herrenschmidt]

Hi All !

A couple of questions for which I would like feed-back before changing BootX:

I've seen users having troubles because they both checked the "Use RAM
Disk" box and wrote some incorrect infos in the /dev/xxx edit field of BootX.

I was wondering: Is there any case where a user may want to have both
"Use RamDisk" and a specified root device ? Should I ignore the content
of the root device field when ram disk is used ? (It still possible to
force it by typing the parameter manually in the kernel args anyway).

Similar issue: should I lookup and remove any "video=xxxx" option from
the kenrnel args prior to booting the kernel when "no video driver" is
checked or is this harmless ?

-- 
           E-Mail: <mailto:bh40@calva.net>
BenH.      Web   : <http://calvaweb.calvacom.fr/bh40/>





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Re: BootX, ramdisk and root device

[Paul Mackerras]

Benjamin Herrenschmidt <bh40@calva.net> wrote:

> I was wondering: Is there any case where a user may want to have both
> "Use RamDisk" and a specified root device ? Should I ignore the content

Not normally.

> of the root device field when ram disk is used ? (It still possible to

Yes, I think so.

> Similar issue: should I lookup and remove any "video=xxxx" option from
> the kenrnel args prior to booting the kernel when "no video driver" is
> checked or is this harmless ?

This one is harmless, since the video=ofonly option will override
other video=xxx options.

Paul.

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Re: BootX, ramdisk and root device

[Nathan Hurst]

On Tue, 15 Dec 1998, Benjamin Herrenschmidt wrote:

> I was wondering: Is there any case where a user may want to have both
> "Use RamDisk" and a specified root device ? 
I don't think so.

> Should I ignore the content of the root device field when ram disk is
> used ? 

This would make sense.

> (It still possible to
> force it by typing the parameter manually in the kernel args anyway).

Hence, if people know what they're doing, they can add it, but the rest of
us who just forgot to clear the field wont have problem.

> Similar issue: should I lookup and remove any "video=xxxx" option from
> the kenrnel args prior to booting the kernel when "no video driver" is
> checked or is this harmless ?

I think that anyone who puts this in will know what they're doing.

njh


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Re: BootX, ramdisk and root device

[nathan ingersoll]

>From my experience, using the "No Video" option cancels out any video
arguments passed to the kernel. In fact, when I first started using BootX
I was passing "video=atyfb" then I decided to try the No Video option. I
didn't remove the video argument, but the screen came up like it was
suppoed to with the option checked. Using XF68 also says that the video
driver is OFfb.

Hope this helps,

Nathan


On Tue, 15 Dec 1998, Benjamin Herrenschmidt wrote:

> 
> Hi All !
> 
> A couple of questions for which I would like feed-back before changing BootX:
> 
> I've seen users having troubles because they both checked the "Use RAM
> Disk" box and wrote some incorrect infos in the /dev/xxx edit field of BootX.
> 
> I was wondering: Is there any case where a user may want to have both
> "Use RamDisk" and a specified root device ? Should I ignore the content
> of the root device field when ram disk is used ? (It still possible to
> force it by typing the parameter manually in the kernel args anyway).
> 
> Similar issue: should I lookup and remove any "video=xxxx" option from
> the kenrnel args prior to booting the kernel when "no video driver" is
> checked or is this harmless ?
> 
> -- 
>            E-Mail: <mailto:bh40@calva.net>
> BenH.      Web   : <http://calvaweb.calvacom.fr/bh40/>
> 
> 
> 
> 
> 

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