Mike, sound advice. I'll make no decision about how or if to proceed until I have your comment and Mike Bombich's.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Carbon Copy Cloner Restore
- Thread starter UPPERCASE
- Start date
- Sort by reaction score
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Update: I found a supplier of hard drives large enough for me to clone CCC_SEAGATE_8TB. Drive will arrive tomorrow. So by Monday or Tuesday I hope to have the clone done. Meanwhile, I'll work on digesting what you all have so generously provided. I might have some questions about it all, but I won't be doing any restores until I have the clone done and the original safely tucked away. Thanks again to all.
(The above swatch is from #14) I'll call this question Q05: "Do TARGET and CRASHED have the same main user name?". Answer05: There is only one main user on all my stuff, as far as I know. But as a check on that belief, I think I should verify that the UUID in the restored TARGET is 501. Which brings up RQ06: How do I determine the UUID of a user? (I've searched around the Web, and all I could find for UUID was device UUIDs)Is the current main user name in TARGET the same name as the one in CRASHED (hence also in CCC_SEAGATE)? If yes, then MA should ask if you want to overwrite that User. Answer yes. If it works that is good because it means the user in the restored TARGET will have UUID=501. If the user name on CRASHED/SEAGATE is different then it will be migrated in as a second user and have UUID=502.
What I asked is whether they have the same name. When Migration Assistant examines the drive you are migrating from it will look at the User account name. If it is the same as the User name on the machine you are migrating to, it will offer to overwrite it, and it will keep UUID 501. If the name is different it will not ask but just migrate the different name as a second user, which will have UUID 502.(The above swatch is from #14) I'll call this question Q05: "Do TARGET and CRASHED have the same main user name?". Answer05: There is only one main user on all my stuff, as far as I know. But as a check on that belief, I think I should verify that the UUID in the restored TARGET is 501. Which brings up RQ06: How do I determine the UUID of a user? (I've searched around the Web, and all I could find for UUID was device UUIDs)
It used to be easy in old macOSes to see the UUID in Settings, but I see in current macOS it is no longer possible and now needs Terminal. I don’t know when it changed, so dont know whether it is easy in Sierra. This link from 2009 mentions the old way:
“UID can be changed from GUI as follows. go to system preferences->accounts. unlock the lock at the bottom. select an account, control-click and choose "advanced options". you can change the UID there. you'll have to recursively change permissions on the home directory after you do this of course. not sure why you wnat to change GID and to what. leopard and snow leopard use default GID=20 (staff). I would not try to change it. you can of course but I'm not clear why you'd want to”.
However if there has only ever been one User account on both machines it is highly likely that both are UID 501 even if the User names are different. But as above if names are different the migrated user would become 502.
Last edited:
OK, thanks. I always login on the same name on these macs. When I ls the /Users dir, I do see some other users (like macports, test, guest) but I don't recall ever using them. So I think I'm OK.
Update: I'm back on the air. Thank you (THANK YOU!!) to everyone who helped, especially Mike Boreham!
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.