We cannot update the sid_amd64_pure chroot since NPTL and the kernel are incompatible.
The exact error message is as follows Get:1 http://bach.hpc2n.umu.se sid/main libc6 2.3.2.ds1-18 [4319kB] [..] Preparing to replace libc6 2.3.2.ds1-16 (using .../libc6_2.3.2.ds1-18_amd64.deb) ... WARNING: POSIX threads library NPTL requires 2.6 and later kernel on amd64. If you use 2.4 kernel, please upgrade your kernel before installing glibc. dpkg: error processing You way want to adjust this behaviour. Then there is the sarge_amd64_biarch on pergolesi as well, which is already disfunktional since no packages can be updated anymore: pergolesi!joey(pts/0):/root# apt-get update COMPAT_ARCHS: i686 i586 i486 i386 all Err http://debian-amd64.alioth.debian.org sarge/main Packages 404 Not Found Ign http://debian-amd64.alioth.debian.org sarge/main Release Err http://debian-amd64.alioth.debian.org sarge/main Sources 404 Not Found Ign http://debian-amd64.alioth.debian.org sarge/main Release Failed to fetch http://debian-amd64.alioth.debian.org/dists/sarge/main/binary-amd64/Packages.gz 404 Not Found Failed to fetch http://debian-amd64.alioth.debian.org/dists/sarge/main/source/Sources.gz 404 Not Found Reading Package Lists... Done E: Some index files failed to download, they have been ignored, or old ones used instead. pergolesi!joey(pts/0):/root# Please let me know if/what you plan to do with it. Regards, Joey -- We all know Linux is great... it does infinite loops in 5 seconds. -- Linus Torvalds Please always Cc to me when replying to me on the lists.