[Sheflug] Linux experts,help please!

[D X Zhang <ela02dxz [at] xxxxxxxxxxxxxxx>]

Hi,
The version of my linux is Red Hat Linux 8.0,I have installed on my 
computer .Now,i want to install the source codes in my system,and there are 
some problems.
I typed the following command in the system terminal
rpm -ivh tcltk-8.3.3-74.src.rpm
and the system displayed
warning: tcltk-8.3.3-74.src.rpm: V3 DSA signature: NOKEY, key ID db42a60e
error: cannot write to %sourcedir /usr/src/redhat/SOURCES
So I thought this is because I had not got a suitable key,then I tried to check 
the keys installed for RPM verification by excuting the command
rpm -qa gpg-pubkey*
this time nothig was given out !! :-(
I guess there must be something wrong with the key,and attempt to import a key 
by typing
rpm --import /usr/share/rhn/RPM-GPG-KEY
This time,very brilliant,the crappy system tell me for errors
error: cannot get exclusive lock on /var/lib/rpm/Packages
error: cannot open Packages index using db3 - Operation not permitted (1)
error: cannot open Packages database in /var/lib/rpm
error: /usr/share/rhn/RPM-GPG-KEY: import failed.
Ate this stage, I really have no strategy at all!
Experts,please help me!
Thanks very much! :-)
 Wenly




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