скопировал файл sources.list с одного компа на другой. потом запускаю:
apt> sudo apt-cache gencaches
Reading Package Lists...
W: Couldn't stat source package list ftp://ftp.de.debian.org unstable/main Packages (/var/lib/apt/lists/ftp.de.debian.org_debian_dists_unstable_main_binary-i386_Pac kages) - stat (2 No such file or directory)
W: Couldn't stat source package list ftp://ftp.de.debian.org unstable/non-free Packages (/var/lib/apt/lists/ftp.de.debian.org_debian_dists_unstable_non-free_binary-i386 _Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list ftp://ftp.de.debian.org unstable/contrib Packages (/var/lib/apt/lists/ftp.de.debian.org_debian_dists_unstable_contrib_binary-i386_ Packages) - stat (2 No such file or directory)
oops... на компе, с которого копировал, естественно, все работает