problem with permissions

[luap]

hello,
i am having a problem or 3 grasping the concept of ,i think, permissions.
hopefully experienced users will show mercy on a puzzled pre-newb.
here is part of my fstab:

/dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,user 0 0
proc /proc proc defaults 0 0
/dev/hde3 /mnt/redhat9 ext3 auto,user,
/dev/hdb2 /mnt/rh8 ext3 auto,user,

i can get a cd mounted, i can access folders and files. but when i try to run a set up script, i get the following:
paul@badpenguin paul $ cd /mnt/cdrom/linux/office60
paul@badpenguin office60 $ ./setup
-bash: ./setup: Permission denied

i tried as root:
root@badpenguin office60 # ./setup
bash: ./setup: Permission denied

and when i try to access the home folders of hde3 and hdb2(thru nautilus) i get

You do not have the permissions necessary to view the contents of "paul".

first question-what do i need to do to get full functionality out of a cd rom drive? to be able to install from a cd?
second queston- what permissions do i need to set to access files from my (admitedly non gentoo) other linux installs?
i know this isnt really a gentoo issue, its a ignorant new user issue.
heck, while i'm here, is it at all possible to set the desktop clock to show normal 12 hr time?
i've read lots of stuff, set the symlink from zoneinfo to localtime, and set rc.conf. the clock
on the gdm logn screen shows correct time, but the desktop clock shows (correct) military time.

i have tried to read up on permissions etc, but i honestly dont get it.

[snkmoorthy]

with regards to not being able to execute a "setup" program you should look at the permissions of the setup file like rwxr------- etc.

remember if it is a windows executable it won't run and you will get a "permission denied" error not matter who executes it. same thing for a shell script say shell.sh which doesn;t have the execute bit set like rw-r--r--

as far as reading mounted partitions see the permission of the mount point ie../mnt/rh8 ...

for the clock, assuming you are using GNOME, rightclick on the clock and select 12hr time format.

[luap]

hello,
thanks for your response.
a doh! and a duh to me for missing the gnome clock setting.

i still dont quite get permissions, but i'm working at it.

i did get my staroffice installed, by copying the install files to my
home folder.

[eNTi]

[dice]

As far as reading the directories on your redhat partition you'll have to make sure that your user account on your Gentoo partition has the same UID as your user on the RedHat partition. First off completely log out of all your shells, running X sessions, etc. then, as root, open up /etc/passwd in Your Favorite Text Editor and check out the line which corresponds to your user account. Here's mine:

[luap]

hello ,
thanks folks for the help. got the cd-r set so i can use it now, and can now get to my other linux home directories. by the way thanks for the examples and the step thru on setting user uid.
a little more practice setting permissions, and reading , i should get the hang.