Install FAQ

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Q: Why does "df" not list my root partition ("/")?

A: The entry for "/" is somehow missing in /etc/mtab. Either edit that file and add a correct line for "/" or better replace /etc/mtab with a link to /proc/mounts, thn everything should be shown.

  • su -c "ln -sf /proc/mounts /etc/mtab"

Q: Why is DMA disabled by default and how do I enable it?

A: Knoppix does the very best it can to automatically figure out what hardware the PC has & it does this without human intervention. DMA is a feature that makes the CDROM & HD access much faster. Some chipsets and/or harddiscs are broken or buggy. Using DMA would cause problems on such systems and in many many cases, if the CDROM drive does not support DMA then it fails to fully boot Knoppix from the CDR. DMA was enabled by default in Knoppix 3.4 through 3.7 and has been disabled in 3.8.x and up. To boot Knoppix 3.4 through 3.7 and get around this DMA problem, I boot knoppix with the following Cheat Codes:

knoppix nodma

If your system works properly with DMA, and you are booting from CD, you can enable it with the following Cheat Codes:

knoppix dma

If your system works properly with DMA, and you are booting from HD, you can enable it by typing "/sbin/hdparm -c3 -d1 -m16 -k1 /dev/hda" or by editing the "/etc/init.d/" startup script and uncommenting the hdparm -qd1 /dev/hda line to have it permanently on at reboot, if the line is not there add it.

A cleaner way to do it requires installing the hdparm package (use the command "apt-get install hdparm" to do this) and edit the file "/etc/hdparm.conf".

Read more at:

Q: How do I test the downloaded ISO file?

A: You can use md5sum -c filename.md5 in Linux or md5gui for windows.

Q: How do I install Knoppix over a Network?

A: Install Over Net HowTo

Q: Is there a way that does not use so much space?

A: There is the "Poor Mans Install", where you can copy some files from the CD to the harddisk. It will run like from CD, but the CDROM is free for other use and its a bit faster. Although you'll need a bootfloppy or change the Bios options to boot first the hard disk with Knoppix (i.e. the second hard disk or d: unit).

Q: Is there other way that does not use so much space? Perhaps by having a compressed file system?

A: Yes, you can install Knoppix in 700 megs instead of 2.3 gigs for the real install, but it will run as if it were from a physical CD, so you cannot install anything, unless you do a 'normal' install. Each time you boot your hardware will need to be redetected. This is not for novices. For more information see the HOWTO for the Hd Based HowTo hard drive based install.

Q: Why doesn't my sound work?

A: Just run "/etc/init.d/alsa-autoconfig" as root once and you'll be fixed up nicely. To have the sound levels set at boot (alsa defaults to muted) edit the file "/etc/init.d/" and add aumix -w 75 -v 75 to the bottom of the file.

Q: How do I install the latest Gnome?

A: Comment all the lines in /etc/apt/sources.list except the unstable ones.

  • apt-get update
  • apt-get install gnome

In order to have gnome-session working you must execute the following and choose metacity

  • update-alternatives --config x-window-manager

Optionally you can also install gdm, galeon, evolution, etc.

Q: how to install knoppix-terminalserver and/or knoppix-terminalopenmosixserver ???

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