Help, I am about to pull my hair out, can't get into a locked drive and Time Machine problem

Question

I've screwed everything up, I think.  I had Time Machine doing backups to an external 500Gig drive and somehow it got locked.  I went into Get Info to try and change the access but it won't allow me.  On top of this problem, my original drive died and I can't get into Time Machine to restore.  When I click "Enter Time Machine", nothing happens.  I created an eDisk and a startup disk to another external drive that I'm using now, but since everything that's been backed up is on the other drive that I can't access.  When I try accessing the drive it gives:  "The folder “G-DRIVE ” can’t be opened because you don’t have permission to see its contents."  I'm not knowledgeable enough to work from the command line, so if I need to do that to access the drive, please walk me though it.  As for the Time Machine problem, I have no idea how to recover anything since it won't even come up, it just sits there.  Outside of blowing my brains out, I don't know what to do.  Any help would be greatly appreciated as I can't afford to take it to Apple to let them try and fix it.

Answer 1

Hello, not sure how this might affect a TM drive, or not, but...
Here is what i needed to do for my drive "320GB HD", the last command is just for clean up
Open Terminal and type these commands carefully with the spaces & change 320GB HD to the name of your drive.
sudo chflags 0 "/volumes/320GB HD"
sudo chown root "/volumes/320GB HD"
sudo chmod 1775 "/volumes/320GB HD"
sudo -k
That said, these should be sufficient to do the job:
sudo chflags 0 "/Volumes/320GB HD"
sudo chmod a+rx "/Volumes/320GB HD"