?s on using Terminal to unlock an internal volume

Recently one of my internal volumes (ALB Files) is displaying a "lock" symbol in the lower left corner. After using "get if," all the permissions have been changes to "custom" and I am unable to access the data.
I have my internal 500GB HD partitioned as such:
ALB OS -> only the operating system
ALB Files -> all other media (music, movies, docs, etc)
From what I've gathered on various forums, I need to use terminal to fix the access rights on the "ALB Files" volume. Here are the terminal scripts I think I need:
sudo chflags 0 /volumes/* ---> this removes the current access info on ALL volumes
sudo chmod a+rx /volumes/* ---> this adds read/write for all users on ALL volumes
sudo chmod o=rx /
sudo chmod -N ---> the last two are suppose to remove "everyone" from having top level access to the drives.
This is my first time using Terminal so I need some help executing the scripts properly. I want to change the scripts to only target one specific volume "ALB Files." Therefore, should the first two scripts read:
sudo chflags 0 /"ALB Files"/* ---> this removes the current access info only on "ALB Files?"
sudo chmod a+rx /ALB Files"/* ---> this adds read/write for all users only on "ALB Files?"
Please let me know if these commands are correct or suggest what I should use instead.
Also, because I am changing permissions on my OS volume, do I need to boot from the OSX disk and run Terminal there?
Thanks much for the help!!!

Run commands such as:
sudo chflags 0 '/Volumes/ALB Files/'
Also, because I am changing permissions on my OS volume, do I need to boot from the OSX disk and run Terminal there?
No.
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