I have an external drive, attached via firewire, formatted in HFS+ Journaled.
This drive was first formatted with Tiger (10.4); I have now upgraded the OS to 10.6.
I specify, in sharing this volume, that there are two users (including me) who should be able to access this volume read-write, and one user that should be able to access it read-only (this is a photo archive, and I want to prevent my kids from inadvertently deleting some photos).
All seems perfect: when I select that volume, or any sub-directory, in Finder, and click on Get Info, it shows clearly that I and my wife have read-write permission, and our child read-only. Yet, from my child' laptop, I have no trouble making copies of files, moving them to trash, renaming them, etc etc.
In essence, it looks like the read-only permission is not respected.
How comes? Are there known "gotchas"? I am not a Mac OS X expert sysadmin (I thought the beauty of Mac OS X is that one did not need to be an expert sysadmin to use it , but neither am I a fully clueless user... any suggestions of things to watch for?
Note: I don't know anything about how ACLs are implemented on Macs, except for the information I can read in the "Info" tab I obtain when I click on "Get Info", or the setting I select in the Settings / Sharing setup menu.
Many thanks! Luca.
This drive was first formatted with Tiger (10.4); I have now upgraded the OS to 10.6.
I specify, in sharing this volume, that there are two users (including me) who should be able to access this volume read-write, and one user that should be able to access it read-only (this is a photo archive, and I want to prevent my kids from inadvertently deleting some photos).
All seems perfect: when I select that volume, or any sub-directory, in Finder, and click on Get Info, it shows clearly that I and my wife have read-write permission, and our child read-only. Yet, from my child' laptop, I have no trouble making copies of files, moving them to trash, renaming them, etc etc.
In essence, it looks like the read-only permission is not respected.
How comes? Are there known "gotchas"? I am not a Mac OS X expert sysadmin (I thought the beauty of Mac OS X is that one did not need to be an expert sysadmin to use it , but neither am I a fully clueless user... any suggestions of things to watch for?
Note: I don't know anything about how ACLs are implemented on Macs, except for the information I can read in the "Info" tab I obtain when I click on "Get Info", or the setting I select in the Settings / Sharing setup menu.
Many thanks! Luca.