[X-Unix] chmod "just doesn't work" on /Volumes/OtherMac

[Jerry Krinock]

Am I incorrect in expecting that this should work, or did something  
change in Mac OS X 10.5.7?

In the session below, ls says that the permissions of a mounted disk  
is 700, rwx------.  I change it using chmod to 777.  Output indicates  
that it "did it" -- no error.  But then running ls again shows that it  
is still 700.

Jerrys-Mac-Mini:~ jk$ cd /Volumes

Jerrys-Mac-Mini:Volumes jk$ ls -al
total 8
drwxrwxrwt@  6 root  admin   204 Jun 26 03:22 .
drwxrwxr-x  71 root  admin  2482 Jun  5 22:30 ..
lrwxr-xr-x   1 root  admin     1 Jun 24 20:31 JMiniHD -> /
drwxrwxr-t  15 root  admin   578 May 16 10:03 JTimeHD
drwx------  35 jk    staff  1146 Feb 24 13:58 Pb800HD
drwxrwxr-x  13 root  admin   510 Jun  5 22:35 Spare

Jerrys-Mac-Mini:Volumes jk$ chmod -v 777 Pb800HD
Pb800HD

Jerrys-Mac-Mini:Volumes jk$ ls -al
total 8
drwxrwxrwt@  6 root  admin   204 Jun 26 03:22 .
drwxrwxr-x  71 root  admin  2482 Jun  5 22:30 ..
lrwxr-xr-x   1 root  admin     1 Jun 24 20:31 JMiniHD -> /
drwxrwxr-t  15 root  admin   578 May 16 10:03 JTimeHD
drwx------  35 jk    staff  1146 Feb 24 13:58 Pb800HD
drwxrwxr-x  13 root  admin   510 Jun  5 22:35 Spare

Thank you,

Jerry Krinock