[Koha] error installing yaz toolkit for koha on debian...help plz

[Andreasa Morris]

i am trying to install koha on debian linux and i am following this manual:

Installing_Koha_on_Debian_sarge.html

However i am at the point of installing the Yaz Toolkit

Though I have made these changes to the source.list file,
# for Yaz Toolkit

     deb http://ftp.indexdata.dk/debian indexdata/sarge released

     deb-src http://ftp.indexdata.dk/debian indexdata/sarge released


 i am getting errors when trying to do the apt-get update

Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 CD Binary-1 20070407-11:55] etch Release.gpg
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 CD Binary-1 20070407-11:55] etch Release
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 CD Binary-1 20070407-11:55] etch/contrib Packages/DiffIndex
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 CD Binary-1 20070407-11:55] etch/main Packages/DiffIndex
Get:1 http://ftp.indexdata.dk indexdata/sarge Release.gpg
Get:2 http://ftp.indexdata.dk indexdata/sarge
 Release
Ign http://ftp.indexdata.dk indexdata/sarge Release
Get:3 http://ftp.indexdata.dk indexdata/sarge/released Packages
99% [3 Packages bzip2 0] [Waiting for headers]                        360B/s 0sbzip2: (stdin) is not a bzip2 file.
Err http://ftp.indexdata.dk indexdata/sarge/released Packages
  Sub-process bzip2 returned an error code (2)
Get:4 http://ftp.indexdata.dk indexdata/sarge/released Sources
99% [4 Sources bzip2
 0]                                               360B/s 0sbzip2: (stdin) is not a bzip2 file.
Err http://ftp.indexdata.dk indexdata/sarge/released Sources
  Sub-process bzip2 returned an error code (2)
Fetched 4696B in 16s (280B/s)
Failed to fetch http://ftp.indexdata.dk/debian/dists/indexdata/sarge/released/binary-i386/Packages.bz2  Sub-process bzip2 returned an error code (2)
Failed to fetch http://ftp.indexdata.dk/debian/dists/indexdata/sarge/released/source/Sources.bz2  Sub-process bzip2 returned an error code (2)
Reading package lists... Done
W: GPG error: http://ftp.indexdata.dk indexdata/sarge Release: The following signatures were invalid: NODATA 1 NODATA 2
W: Couldn't stat source package list http://ftp.indexdata.dk indexdata/sarge/released Packages (/var/lib/apt/lists/ftp.indexdata.dk_debian_dists_indexdata_sarge_released_binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old ones used instead.

i have done this over and over and i am still
 getting the same errors. i do not know what to do next and i am unable to move forward. 

someone please help





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