Upgrading after hdd install

[usercsr]

hi all,
I've just finished installing knoppix onto my hard drive without any problems . But I want to get clear on some of the things..

1) Is there anything wrongt with the '/etc/apt/sources.list' file, 'cause when I do

apt-get update

, I get lots of 'file not found' errors and will not be able to install anything. So I edited the sources file to contain only those packages from debian.org. Now, where can I get a list of working mirrors (stable, testing and unstable), so that I can do a nead update.

2) If I have a good sources list file, will

apt-get update

and

apt-get upgrade

work properly as in Debian

3) I am not able to install alsa properly. I get the following errors when I try to install alsa

apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
Correcting dependencies... Done
The following extra packages will be installed:
  alsa-utils
Suggested packages:
  alsadriver
The following NEW packages will be installed:
  alsa-utils
0 upgraded, 1 newly installed, 0 to remove and 76 not upgraded.
1 not fully installed or removed.
Need to get 0B/129kB of archives.
After unpacking 381kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
(Reading database ... 106700 files and directories currently installed.)
Unpacking alsa-utils (from .../alsa-utils_1.0.4-1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/alsa-utils_1.0.4-1_i386.deb (--unpack):
 trying to overwrite `/usr/bin/alsamixer', which is also in package knx-alsa
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/alsa-utils_1.0.4-1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

thank you in advance

[PROhan]

i posted how to update the mirrors of sources.list at the bottom over here http://knoppix.net/forum/viewtopic.php?t=10779

[usercsr]

thanks for that,

I will try it out