On 2019-09-12, at 11:14 AM, Carl Hoefs <[email protected]> wrote:
> Yes, I was hoping to get the data off the drive. I was unsure how TM drives > work when apart from the system they were backing up. If I connect the TM HDD > to another system, does TM know the backups on it aren't for that system? > Would the TM backup data be available through TM on the new system? Or would > I need to cd into the drive and copy files off manually? There's some variations over time, but basically the backup directory contains a top-level "per machine" section, that is used to identify if the backup is for a given machine or not. When you use (I think) associateDisk to take ownership of a backup disk for a new machine (typically used when you restore a backup onto a new machine if the old mother board dies, etc), that just renames that directory to indicate current ownership. The files on the backup basically are untouched. They are placed in directories that do not permit any write operations of any kind (ACL lists). All files/directories get two extended attributes to indicate that they are in a backup and the approximate range of which backups. If there were any special permissions, those should be indicated in another special extended attribute. Modern Finder should, on copy, restore the permissions/ACL's of the files to normal when they come out of the backup directory. Older systems only did that when you restored through the time machine interface or the tmutil command. Normal file system commands will work just fine. The TM directories just look like normal read-only directories containing the files. If you are not using any special ACL's or extended attributes, everything will treat them normally, including normal "chmod" permissions and ownerships You might need to use "Browse other time machine disks" if you wanted to look at it through the TM graphical interface. --- Entertaining minecraft videos http://YouTube.com/keybounce _______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
