Linux

1. edit /etc/apt/sources.list and uncomment the lines for universe (remove the "" in front of the lines)
2. add a line similar to universe see the example: http://fi.archive.ubuntu.com/ubuntu breezy multiverse
3. download any extra codecs: wget http://www2.mplayerhq.hu/MPlayer/releases/codecs/all-20050412.tar.bz2
4. unpack the codecs: tar -xvjf all-20050412.tar.bz2

as sudo:

1. Save all sequences in one flatfile format (NOT MacVector format), e.g. genbank format.
2. Copy all sequences to a Linux/UNIX computer and convert them from Mac format to UNIX format: mac2unix *.gb
3. Write all sequence fiule names into one file: ls *.gb > oligo.lst
4. Convert all sequences into one file of concatenated fasta entries using EMBOSS: seqret -sequence @oligo.lst -osformat fasta. Call the output file "mcbl_oligo_db"
5. Put this fasta file into the blast web servers database directory (.../blast/db)

In (K)ubuntu, only sudo is allowed by default. To enable su, execute:

sudo -s -H

To enable graphical root login, edit /etc/kde3/kdm/kdmrc:

AllowRootLogin=true