On Thu, 11 Jan 2007 10:18:50 +0000, Colin Watson wrote: > I'm betting that the permissions on /dev/null on your system are broken. That is right, i'm wondering how this could be appear. # ll /dev/null crwSrwSrw- 1 root root 1, 3 2006-12-04 13:27 /dev/null After i correct the permissions the upgrade works. Thanks a lot. The only open question is why the permissions becomes an setuid bit? -- Volker Epting