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Topic: boot options, complete list?

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mikshaw

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Posts: 4856
Joined: July 2004

Posted: Mar. 18 2005,15:14

Anyone have a complete list of boot options for DSL? The F2 file contains only a partial list.
minirt24 seems like the only other place to look, but so far i haven't had much luck. Is it something extracted from the KNOPPIX file?

EDIT: I think it may be minirt24 after all....gotta look more closely...

NEW QUESTION: Is it possible to edit minirt24 in a text editor without corrupting the file?

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clivesay

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Posts: 935
Joined: Dec. 2003

Posted: Mar. 18 2005,16:00

I have used the minirt24 howto's in the forum for editing. For some reason the first time I did it, it worked but ever since then I corrupt it every time!

Chris

henk.1955

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Posts: 41
Joined: Feb. 2005

Posted: Mar. 18 2005,16:14

minirt24.gz is THE root filesystem in ram.
if you want to edit it, you have to extract it, and then mount it like:
mount minirt24 /mnt/test -o loop
then when done editing, unmount it.
sync
sync
and zip it up again
btw. bootoptions are everyware over the system. places to look for are: linuxrc in minirt24, /etc/init.d/knoppix-autoconfig, /etc/init.d/dsl-config, /home/dsl/.xinitrc and some bootoptions are from the kernel itself or the bootloader

mikshaw

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Joined: July 2004

Posted: Mar. 18 2005,18:03

Thanks. I was looking through knoppix-autoconfig and found a few interesting things I didn't know about, although some seem to be unuseable knoppix leftovers. I didn't notice dsl-config...i'll have to check that out.

If boot options are used in several places, does that mean they are stored in root's environment? If so, one should be able to pass variables to bootlocal or other scripts through custom boot options. I can't think of any specific use at the moment, but it could be fun to mess around with it.

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henk.1955

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Joined: Feb. 2005

Posted: Mar. 18 2005,18:28

if you do: cat /proc/cmdline
you will see the bootparams
in /etc/init.d/dsl-functions there are some usefull bash-script function to work with bootparams
look in /etc/init.d/dsl-config how they are used.
in a simular way you can use then in your own scripts, you can even "invent" new.

my cat /proc/cmdline

Code Sample

ramdisk_size=100000 init=/etc/init lang=us apm=power-off hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi vga=791 nomce fromhd=/dev/hda2 knoppix_dir=dsl-remix dma frugal lp restore=hda2 host=box13 alsa quiet home=hda7 opt=hda7

i "invented" the host=

11 replies since Mar. 18 2005,15:14

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