can't boot MythTv

Today while I was watching a recording, while another recording was taking place my MythTv froze giving me an error. I can't recall what that error was but when I restared the MythTV hoping that it would just reboot and work fine I received this message, " error gdm could not write to your authorization file this could mean your out of disk space or that your home directory could not be opened for writing in any case it is not possible to log in please contact your system administrator)" I read on another post about this to log into the root partition on the prompt and check my space. Well how do I get to the command line as root. My girlfriend told me of the problem so I am not sure if it takes you right to the command line or if it just sits there after that error. If it just sits there how do I get to the command line, or does it just go there after the error? If you could help me I would appreciate it. Thanks

It should be at a command

It should be at a command prompt after the message. If not then ctrl+alt bckspace to GDM and start a failsafe session. I would look at this.
http://mythdora.com/?q=node/335

"Please ignore the man behind the curtain"
Dennis

"Please ignore the man behind the curtain"
Dennis

I can get to command prompt

I can get to the command prompt and when I run df -k I get this....

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
9109720 8664400 0 100% /
/dev/hda1 101086 11181 84686 12% /boot
tmpfs 256564 0 256564 0% /dev/shm
/dev/mapper/VolGroup00-LogVol01
9141624 199516 8470252 3% /storage

Why would that VolGroup00 be 100% used....I tried removing the few recordings I had on this hard drive, because all my other recordings are on the larger hard drive, but this didn't help any. What should I remove or change to fis this problem.

Spent time looking at files...

I have spent some time looking at the files on the root and I can't find anything that would be taking up that much space. I might have thought of it though. I am new to linux and when I mounted my new hard drive it is located at root. Should it be in dev? Any help would be appreciated. Thanks.

I am really dumb...

Ok so I figured out what the problem is. Remember I am new to Linux and I tried mounting a new hard drive. I tried reading online some tutorials on how to do it. I thought I did it correct. It seems like what happened was somehow all I did was create a new folder on the small hard drive. So all the problem was is that my hard drive is full, and I really don't have the large hard drive mounted....really stupid of me. Can you please help me in mounting the larger hard drive.