Is it coming up into a GUI display after boot?
If so, try holding down the following keys together Ctrl and Alt, then press F1 while holding Ctrl and Alt down.
This should switch you from the GUI *terminal* to a standard ASCII TTY.
Login as root (or other userid) and then get the file info.
You could also attempt to restart your system by pressing Ctrl-Alt-Del, and then interrupt the boot process, and add "s" to the boot line to take it to single user mode.
Then you can log in and get the info there too.