Some random notes:

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USB scanner under linux kernel 2.6:
- use libusb (e.g., apt-get install libusb-dev)
- add users to the scanner group (e.g., adduser elmar scanner)

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RAID1 setup with kernel 2.6:
[assuming the installation was done in a single partition /dev/hda4]
- aptitude install mdadm
- stop old md setup (for md0 and other if necessary):
  mdadm -S /dev/md0
- create new:
  mdadm -Cv /dev/md0 -l1 -n2 missing /dev/hdc4
- mkfs.ext3 /dev/md0
- echo "DEVICE /dev/hda* /dev/hdc*" > /etc/mdadm/mdadm.conf
- mdadm --detail --scan >> /etc/mdadm/mdadm.conf
- edit /boot/grub/menu.lst and two copies of the current boot entry
  in them replace hda4 with md0
  in one use root (hd0,3) in the other (hd1,3) and label them sensibly
- rsync -auHxv --exclude=/proc/* --exclude=/sys/* --exclude=/mnt /* /mnt
- edit /mnt/etc/fstab and replace hda4 with md0
- fdisk /dev/hda and change the type of /dev/hda4 to "fd"
- complete the md:  mdadm /dev/md0 -a /dev/hda4
- edit /etc/mdadm/mdadm.conf: DEVICE /dev/hda* /dev/hdc*
- mdadm --detail --scan >> /etc/mdadm/mdadm.conf
- install the grub MBR on the second disk:
  grub --device-map=/boot/grub/device.map
  >> root (hd0,3)
  >> setup (hd0)
  >> root (hd1,3)
  >> setup (hd1)
  >> quit
- edit /boot/grub/menu.lst
  replace hda4 with md0, i.e.,
  # kopt=root=/dev/md0 ro
- aptitude install mbr
  install-mbr /dev/hda
  install-mbr /dev/hdc
  add boot-flag to /dev/hda4 and /dev/hdc4

### DVB:
download DVB firmware from http://www.linuxtv.org/download/dvb/firmware/
and add it to /usr/lib/hotplug/firmware/dvb-ttpci-01.fw


notes for video recording:
http://www.cs.helsinki.fi/u/msaarest/linux-tv/
http://nvrec.sourceforge.net/
http://avidemux.sourceforge.net/