1. After enabling rpmforge-extra repository, I did
Loaded plugins: downloadonly, kernel-module, priorities
280 packages excluded due to repository priority protections
Setting up Install Process
Package tcp_wrappers is obsoleted by tcp_wrappers-libs, trying to install tcp_wrappers-libs-7.6-57.el5.rfx.i386 instead
Resolving Dependencies
--> Running transaction check
--> Processing Dependency: tcp_wrappers for package: nfs-utils
---> Package tcp_wrappers-libs.i386 0:7.6-57.el5.rfx set to be updated
--> Finished Dependency Resolution
1:nfs-utils-1.0.9-44.el5.i386 from installed has depsolving problems
--> Missing Dependency: tcp_wrappers is needed by package 1:nfs-utils-1.0.9-44.el5.i386 (installed)
Beginning Kernel Module Plugin
Finished Kernel Module Plugin
Error: Missing Dependency: tcp_wrappers is needed by package 1:nfs-utils-1.0.9-44.el5.i386 (installed)
You could try using --skip-broken to work around the problem
You could try running: package-cleanup --problems
package-cleanup --dupes
rpm -Va --nofiles --nodigest
2. I found octave was not in SL 5's repository by default. I tried to compile it from source but got stuck at GNU readline libraries:
configure: WARNING: I couldn't find -ltermcap, -lterminfo, -lncurses, -lcurses, or -ltermlib!
checking for rl_set_keyboard_input_timeout in -lreadline... no
configure: WARNING: I need GNU Readline 4.2 or later
configure: error: this is fatal unless you specify --disable-readline