Booting Knoppix4.0.2 from DOS

**mikekgr** · 01-03-2006, 02:47 PM

Dear ruymbeke,
I follow your steps and now I can boot my 1G usb2 ext. usb stick.

Thanks a lot

Best Regards,
Mike Kranidis.

P.S. what is the filesystem of the loop file minirt_usb2 ??? I tried to mount (after decompretion) using mount -o loop ./minirt_usb2 /mnt/test but it was unsuccessfully can you guess why??

**hobz** · 01-03-2006, 06:53 PM

Thanks
great it works
Iwill try it to see if we are having problems with discs to be read write and wireless lan card which is not dicovered

**ruymbeke** · 01-03-2006, 09:18 PM

Originally Posted by mikekgr

P.S. what is the filesystem of the loop file minirt_usb2 ??? I tried to mount (after decompretion) using mount -o loop ./minirt_usb2 /mnt/test but it was unsuccessfully can you guess why??

I mount it this way. It should work...
Are you super user when running the mount ?
It should not matter, but I copy first the minirt_usb2.gz file in the knoppix directory and also mount it in the knoppix directory using:
mount -o loop minirt_usb2 toto
Gilles

**hobz** · 01-03-2006, 09:40 PM

Ok
C: & E: are mounted on /mnt/hda1 /mnt/hda5 Read and write I see the 3 partitions on desktop
but on clicking D: or /dev/hda5 it is read only
when I click it konqueror opens but i don see /dev/hda5 I see /cdrom2.loop
in my cheat code I am putting root=/dev/hda1 !!! could this be a problem
wirless lan works now
Thanks a million

**ruymbeke** · 01-03-2006, 10:04 PM

Originally Posted by hobz

Ok
C: & E: are mounted on /mnt/hda1 /mnt/hda5 Read and write I see the 3 partitions on desktop
but on clicking D: or /dev/hda5 it is read only
when I click it konqueror opens but i don see /dev/hda5 I see /cdrom2.loop
in my cheat code I am putting root=/dev/hda1 !!! could this be a problem
wirless lan works now
Thanks a million

I am a little bit confused, what is D: since hda5 is already E ?
Anyway, if you enter the wrong device in the bootfrom= kernel command line, my linuxrc boot scipt (within the minirt_usb2.gz)
will automatically search for an other device where the iso file is located using the same directory path.
If you look carefully at the text written on the screen, you should notice that the iso file is not found where expected
but in an other device and the text should suggest you to correct the kernel command bootfrom= cheatcode
with the correct device which has been used to complete the boot.
Now, since the partition containing the iso file is mounted at a very early stage by the linuxrc boot script
in order to mount the Knoppix root file system and complete the Knoppix boot, this boot partition is mounted by default
as read only and as /cdrom2.loop. You can remount this partition as writable (but I would not do that on a ntfs partition though)
by using the following command line: mount -f -o remount,rw /cdrom2.loop
But it probably unnecessary to tell you not to delete or move the Knoppix iso cd image file...
Cheers,
Gilles

**hobz** · 01-03-2006, 10:39 PM

this command works for root only
what should I add for all users & what is -f

Thanks for supporting me the last 2 days

**ruymbeke** · 01-03-2006, 10:52 PM

Originally Posted by hobz

this command works for root only. what should I add for all users & what is -f
Thanks for supporting me the last 2 days

Is sudo acceptable for you ? (to be run as a user) ==> sudo mount -f -o remount,rw /cdrom2.loop
-f means force (try: man mount to read more bout it).
You need that because the /cdrom2.loop device is already in use (but in read only mode) at the time you run the (re)mount.
My pleasure,
Gilles

**hobz** · 01-05-2006, 03:20 PM

My next challenge
My PC at work it is an NTFS with a sata hard drive
I got ntfsdos
it mounts the partitions
in grub.bat
I have the command:
grub.exe --config-file(sd0,4)/knoppix/menu.lst
I there somthing wrong with this (sd0 ?????
it can't find menu .list

**ruymbeke** · 01-05-2006, 06:30 PM

Originally Posted by hobz

My next challenge
My PC at work it is an NTFS with a sata hard drive
I got ntfsdos
it mounts the partitions
in grub.bat
I have the command:
grub.exe --config-file(sd0,4)/knoppix/menu.lst
I there somthing wrong with this (sd0 ?????
it can't find menu .list

Grub do not use the linux syntax. You have to use (hdx,y).
The best way to check what should be used, is to start grub
and from the command line prompt (c key) use the grub autocompletion (by using the tab key):
type something as "root (hd[tab key]" and grub will list all the disk available.
then if you select the first disk drive: "root (hd0,[tab key]", grub wil list
all the partitions and the partition types availbale on the first disk drive.
This should help you to figure out the path for the menu.lst.
If you type the [tan key] at the prompt you will have a list of the commands.
The grub command line shell is really a nice feature for debugging your setup.
Cheers,
Gilles

PS: did sudo worked for you ? I would apreciate some feedback before moving to the next topic ...

**hobz** · 01-05-2006, 07:48 PM

I get this message when trying to save any file as a normal user

The document could not be saved, as it was not possible to write to file:///cdrom2.loop/bios.txt.
Check that you have write access to this file or that enough disk space is available.

even when I try putting rw switch
chmod 777cdrom2.loop does not work even as root