Oops. Changed permissions on internal HD to no access, Now they are gone. Help

[weapon]

I was trying to lock my drives so that an alternative could not write or read to 2 of my 4 HD.

Changed access to "no access", Restarted and now the drivse do not appear on the desktop.

How do I get them back so i can change the access to Read & write?

[beerman]

How do you change a drive to have "no access"?

[Paul F.]

Disk Utility?
Select the drive, and click "mount"?

[cbelt3]

You may have to go to the extent of using a root login to fix all this (repair permissions, etc..)

I was afraid this would happen to you- I watched your discussion of your roomie using your Mac. User level security looks easy, but it can get you in lotsa trouble very quickly unless you've got administrative experience. There are, fortunately, people here who have that experience. I've piddled a bit with this stuff, but not a lot.

[weapon]

Hopefully, someone can help me fix my mistake. This is why I don't like messing with this kind of stuff either.

My roomy should be getting his laptop in 2 weeks when the check arrives so this will all be over soon but I need to get those drives mounted asap.

[ztirffritz]

before you're done the following information will be useful for you. I'll just post it here and get it out of the way upfront. You'll thank me later.

*******************
1 - - x execute
2 - w - write
3 - w x write and execute
4 r - - read
5 r - x read and execute
6 r w - read and write
7 rwx read,write, and execute

man visudo
man sudoer
man su
man sudo
man chmod
man chown
man mount
man umount
********************

have fun

[MacMagus]

'Happens all the time.

http://forums.macresource.com/read/1/365675/366036

[weapon]

Well I am glad it happens all the time. Now how do I fix it?

Is that really helpful, Ztirffritz? Without explanation and instructions your list might as well be in chinese. lol.

Can I use bachmod or some type of terminal program to fix this problem?

[Paul F.]

MacMagus' post from that thread is worth quoteing;

Re: HELP - Need Terminal commands to change Disk Permissions
Posted by: MacMagus
Date: October 09, 2007 07:36PM

With the drive mounted, go into the Terminal, navigate to the local Volumes folder and confirm that the drive shows up there by entering these two lines...

cd /Volumes
ls

The USB drive should be listed there. Note its name.

Now enter this...

sudo chmod 1775 'NAME OF USB DRIVE VOLUME'

...where the name of the drive is substituted inside the quotes.

[Paul F.]

In your case, replace "USB Drive" with "currently un-seeable internal drive".

(forgot to mention that)..

And the "chmod" and "chown" commends in Terminal are how BatchMod "does it's thing".