How to delete files on iMac with no menus -- Your startup disk is full I have an iMac with the 10.4 OSX operating system installed.  When I boot the computer it prompts me with this message:  "Your startup disk is full.  You need to make more space available on your disk by deleting files".  I am able to login and see the desktop background, but I cannot see any menus.  

How can I delete files or erase all the data?  I have the startup disks but when I hold down C as the disks instructions say, nothing when I reboot.
Try deleting files in single user mode:


Restart
Hold ⌘S after hearing the startup sound (it doesn't work if I start holding it before the computer has restarted)
Run mount -uw / (fsck -fy is not needed)
Run something like rm -r /Users/username/.Trash/
reboot