I am installing ubuntu on multiple laptops by following this guide. I did it successfully on 23 laptops but on 2 laptops it freezes. When I boot it up, after login the desktop shows up, and after some time it freezes. Magic SysRq Key cannot be used also. Ctrl+Alt+F2 doesn't show the terminal. During installation, after boot up from the cd, many times installation failed because of random freezes. After many painful re-attempts I was able to install it, but the system freezing problem remains.
If booted into recovery mode shell prompt with networking, the shell prompt also freezes. But recovery mode root shell prompt works fine, so here is the data I collected:
shows "no error state collected"
wedged : 0
I have installed successfully on 23 latops having same hardware but on 2 laptops I got the above menioned problem.
The laptops are Dell vostro 1014. They had ubuntu 8.10 preinstalled, which worked perfectly well.
Both laptops pass memtest.
Installing ubuntu alternate gives same problem.