[debian-knoppix] RE: bootfrom option
Would it be possible / is it planned to add a "bootfrom firewire/usb
drive" option?
I realise that this is reasonably complicated...
(currently with a 2.4 kernel I boot a Knoppix CD with the option
"knoppix single", do a sudo su, check the firewire modules are loaded,
scan the scsi bus, make a /mnt/new_root, mount a firewire partition
there, cd, do a pivot_root, mount /proc then swap, and finally switch to
run level 5; things are slightly easier with a 2.6 kernel).
...and that it's peripheral to the aims of Knoppix (as I understand
them), but I think it would be a pretty popular boot option (from what I
see in the forums). And it would allow users to carry around a portable
hard drive containing *their* system (with home, all apps etc) that they
could then boot off almost any PC.
Otherwise, in general terms what would I have to modify to create a
custom Knoppix image that did the above (e.g. without a boot option, the
CD would automatically mount my firewire drive and do a pivot_root etc;
with a boot option I could get the CD to boot *normally*)? Is it mainly
editing linuxrc?
About 12-18 months ago I did try to create a custom initrd (via
pcinitrd) to do just this but failed miserably. And then I discovered
Knoppix :) And then I discovered this alternative booting method so I
can run Knoppix/Debian off an external hard drive :))
Cheers
Chris
-----Original Message-----
Date: Thu, 27 May 2004 19:25:35 +0900 (JST)
To: debian-knoppix@linuxtag.org
From: Kuniyasu Suzaki <k.suzaki@aist.go.jp>
Subject: [debian-knoppix] bootfrom option from floopy boot
"bootfrom" option is not effective from floppy boot. The miniroot seems
to lack drivers. Please tell me how to fix. I want to boot KNOPPIX from
NTFS without CD. :-)
Anyway, the treatment of "bootfrom" is diffenent on kernel24 and
kernel26. The "bootfrom" option on kernel24 uses iso image but kernel26
uses cloop file.
On kernel24 we have to copy *.iso to NTFS.
boot: knoppix bootfrom=/dev/hda1/*.iso
On kernel26 we have to copy cloop file to "C:\KNOPPIX\KNOPPIX".
boot: knoppix26 bootfrom=/dev/hda1
Which is easy way to fix the problem?
------
suzaki
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