[Veltliner]

As I probably have to do an Archive & Install, as iDVD doesn't open...

1. Can you delete the previous system in the previous systems folder?

2. Can complex software be affected by an Archive & Install. e.g. Photoshop?

Thanks.

[Sherman Homan]

In general you can safely and immediately delete a Previous System folder. In fact, if you look at the Applications folder you will only see Apple programs. None of your apps will be in there. You won't see anything in the Users folder.
Couple of reasons to wait: make sure you have everything you expected! Make sure everything works. Older versions of Photoshop had some kind of script that was needed to simply double-click and open a .psd file that got deleted during an A&I. Quark required a re-install of that Xerces thing. No big deal, but those are the only problems I ever ran into.

[mdc]

Fireworks was also affected by A&I but I can't remember how, sorry. Macromedia had a patch on their site you could run after A&I. I'm not sure if CS3 is still affected or not.

Most apps are not affected because they store things in ~/Library which is not touched by A&I, and the rest of their files are in their own bundle.

[ghporter]

I did an A&I to upgrade to Leopard. In my Previous System's Applications folder there are a LOT of apps-and a bunch with an international "not" sign over them. Apps like Garage Band, iDVD and such I can sort of understand, but Firefox? Google Earth? What does that all mean, anyway?

[Sherman Homan]

The international NO sign is for apps that will not work under Leopard, usually System 9 stuff. I have never seen non-Apple apps moved into the Previous System after an A&I! That is really odd, and certainly a really good reason to wait and see before tossing the folder.

[Veltliner]

Looks like I won't do an A&I yet.

Can't risk Photoshop trouble.

I just wonder now why this shitty iDVD doesn't open.

[Sherman Homan]

Veltliner, I just saw your other post about iDVD. Damn the torpedoes and do the A&I. Photoshop will be fine, the double-click thing is only in this case:
Adobe Forums - Double-click/Drag-&-drop Photoshop files opens application but not file or I get a message saying that some files in Application Support are missing and I have to reinstall. (Photoshop CS/CS2/CS3)
I did the Scripting Additions trick after an A&I and it worked perfectly.

[Veltliner]

Originally Posted by Sherman Homan 

Veltliner, I just saw your other post about iDVD. Damn the torpedoes and do the A&I. Photoshop will be fine, the double-click thing is only in this case:
Adobe Forums - Double-click/Drag-&-drop Photoshop files opens application but not file or I get a message saying that some files in Application Support are missing and I have to reinstall. (Photoshop CS/CS2/CS3)
I did the Scripting Additions trick after an A&I and it worked perfectly.

Thanks! Which exactly would be the file I have to double-click? It doesn't say so in the Adobe forum post.

[Sherman Homan]

Sorry if I wasn't clear, the problem is with double-clicking a Photoshop file in the Finder. It will open Photoshop, but not the file. It is weird, you can open the file correctly from within Photoshop, but not from the Finder. At worst it is an annoyance, no other function of Photoshop is affected. The fix is easy:
Open your Previous System folder.
Find "Adobe Unit Types".
Copy it into the root level of your hard drive/Library/ScriptingAdditions/
Then reboot your Mac.

[Veltliner]

Originally Posted by Sherman Homan 

Sorry if I wasn't clear, the problem is with double-clicking a Photoshop file in the Finder. It will open Photoshop, but not the file. It is weird, you can open the file correctly from within Photoshop, but not from the Finder. At worst it is an annoyance, no other function of Photoshop is affected. The fix is easy:
Open your Previous System folder.
Find "Adobe Unit Types".
Copy it into the root level of your hard drive/Library/ScriptingAdditions/
Then reboot your Mac.

Thanks!

I understand, the root level (there are so many libraries in OS X) is the library that rules the HD, different from the libraries that govern the home folder?

The file you mentioned: could it be the file Adobe unit types.osax? That's the only file I see there. (And it is still there, as I didn't do an A & I).

[Sherman Homan]

Yup, that's the one! Just drag into your new Library/ScriptingAdditions after the A&I.