from sources.list
deb http://mirrors.kernel.org/debian etch main contrib non-free

sudo aptitude update
Reading package lists... Done
Building dependency tree... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
Building tag database... Done
Get:1 http://mirrors.kernel.org etch Release.gpg [189B]
Hit http://mirrors.kernel.org etch Release
Get:2 http://mirrors.kernel.org etch/main Packages [5357kB]
Get:3 http://mirrors.kernel.org etch/contrib Packages/DiffIndex [12.5kB]
Get:4 http://mirrors.kernel.org etch/non-free Packages [89.2kB]
Fetched 5459kB in 60s (90.3kB/s)
Reading package lists... Done
W: Couldn't stat source package list http://mirrors.kernel.org etch/main Packages (/var/lib/apt/lists/mirrors.kernel.org_debian_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://mirrors.kernel.org etch/non-free Packages (/var/lib/apt/lists/mirrors.kernel.org_debian_dists_etch_non-free_binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to update the package lists to correct these missing files
W: You may want to run apt-get update to correct these problems