Ioannis Vranos wrote: > I tried to follow the directions of the > https://www.scientificlinux.org/documentation/howto/upgrade for > upgrading to SL 4.1 from 4, however rpm fails for both statements (4.x > and 41): > > > [root@chrome ~]# rpm -Uvh > ftp://ftp.scientificlinux.org/linux/scientific/4x/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > > Retrieving > ftp://ftp.scientificlinux.org/linux/scientific/4x/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > > error: skipping > ftp://ftp.scientificlinux.org/linux/scientific/4x/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > - transfer failed - Unknown or unexpected error > > [root@chrome ~]# rpm -Uvh > ftp://ftp.scientificlinux.org/linux/scientific/41/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > > Retrieving > ftp://ftp.scientificlinux.org/linux/scientific/41/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > > error: skipping > ftp://ftp.scientificlinux.org/linux/scientific/41/i386/misc/RPMS/yum-conf-4x.SL.noarch.rpm > - transfer failed - Unknown or unexpected error > > [root@chrome ~]# > > > Any ideas on how to safely upgrade? apt-get doesn't work either. The following is the output of apt-get (it had been run before and that's why the "already installed" in the first step): [root@chrome ~]# rpm -Uvh ftp://ftp.scientificlinux.org/linux/scientific/41/i386/misc/RPMS/apt-sourceslist-4x.SL.i386.rpm Retrieving ftp://ftp.scientificlinux.org/linux/scientific/41/i386/misc/RPMS/apt-sourceslist-4x.SL.i386.rpm warning: /var/tmp/rpm-xfer.6gqF1o: V3 DSA signature: NOKEY, key ID a7048f8d Preparing... ########################################### [100%] package apt-sourceslist-41-1.SL is already installed [root@chrome ~]# apt-get update Get:1 ftp://ftp.scientificlinux.org 40/i386/apt release [1061B] Fetched 1061B in 2s (462B/s) Hit ftp://ftp.scientificlinux.org 40/i386/apt/os pkglist Hit ftp://ftp.scientificlinux.org 40/i386/apt/os release Hit ftp://ftp.scientificlinux.org 40/i386/apt/updates pkglist Hit ftp://ftp.scientificlinux.org 40/i386/apt/updates release Hit ftp://ftp.scientificlinux.org 40/i386/apt/contrib pkglist Hit ftp://ftp.scientificlinux.org 40/i386/apt/contrib release Reading Package Lists... Done Building Dependency Tree... Done [root@chrome ~]# apt-get dist-upgrade Reading Package Lists... Done Building Dependency Tree... Done Calculating Upgrade... Done 0 upgraded, 0 newly installed, 0 removed and 0 not upgraded. [root@chrome ~]# apt-get upgrade-kernel E: Invalid operation upgrade-kernel [root@chrome ~]# I am not sure "apt-get update" should check the "40" data in the "apt-get update" statement, and the "apt-get upgrade-kernel" does not seem to work.