Debian 6

log

root@vs0303:~# apt-get install curl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  ca-certificates libcurl3
The following NEW packages will be installed:
  ca-certificates curl libcurl3
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 660 kB of archives.
After this operation, 1651 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Err http://ftp.debian.org/debian/ squeeze/main ca-certificates all 20090814+nmu2
  404  Not Found
Err http://ftp.debian.org/debian/ squeeze/main libcurl3 i386 7.21.0-1
  404  Not Found
Err http://ftp.debian.org/debian/ squeeze/main curl i386 7.21.0-1
  404  Not Found
Failed to fetch http://ftp.debian.org/debian/pool/main/c/ca-certificates/ca-certificates_20090814+nmu2_all.deb  404  Not Found
Failed to fetch http://ftp.debian.org/debian/pool/main/c/curl/libcurl3_7.21.0-1_i386.deb  404  Not Found
Failed to fetch http://ftp.debian.org/debian/pool/main/c/curl/curl_7.21.0-1_i386.deb  404  Not Found
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
root@vs0303:~# 

more info

root@vs0303:~# cat /etc/debian_version 
6.0.1
root@vs0303:~# cat /etc/issue
Debian GNU/Linux 6.0 \n \l
root@vs0303:~# uname -a
Linux vs0303 2.6.32-6-pve #1 SMP Mon Sep 26 06:32:53 CEST 2011 i686 GNU/Linux

apt-get update