I tried to upgrade to 4.2 without success. There was no problem with
yum udate yum
and I installed yum-conf without problem.
Then I did a
yum upgrade
and many package headers were downloaded until it got to rpmdb. Here is
the error message.
---> Downloading header for rpmdb-SL to pack into transaction set.
rpmdb-SL-42-0.20051122.i3 100% |=========================| 4.3 kB
00:00
ftp://ftp.scientificlinux.org/linux/scientific/42/i386/SL/RPMS/rpmdb-
SL-42-0.20051122.i386.rpm: [Errno -1] Header is not complete.
Trying other mirror.
Error: failure: rpmdb-SL-42-0.20051122.i386.rpm from sl-base: [Errno
256] No more mirrors to try.