Many of you will be aware that Leopard is now available. Here are some problems already found by a colleague.
First make a bootable backup of your existing computer onto an external HD using Superduper or Carbon Copy Cloner 3.01 as this ensures that if the update is a disaster you can go back to where you started from (by booting off the backup and copying it back to the original computer hard disk or partition).
Remove any "haxies" such as APE or iScroll2 (http://www.xlr8yourmac.com/feedback/....html#storytop for a list of issues) otherwise when you restart you will be stuck in the "blue screen of death".
Run Onyx 1.8.3 (free) or Cocktail (shareware) to clear-out all the caches and run the maintenance utilities.
Load the Leopard install DVD and restart (hold down "c" at start up to boot off the DVD)
At the point you get to "Select a Destination", click on "options" and choose "archive and install" (this leaves the old system folder on your computer and is the most reliable way to upgrade) but if you are brace you can just "upgrade" follow the defaults (I did this by accident).
Wait till the installer is finished (>1hr)
When you log back in BEFORE you do anything go to software updates (under the apple menu) and install any updaters offered to you then restart you mac.
It seems that all your printer setups will need to be redone.
There is one significant problem that I and others have found with the "keychain" not being found.
Open "keychain access" in the "utilities folder" and then under "preferences" tick "show status in menu bar" which gives you an easy way to access this.
Then under the "keychain access" run keychain first aid "repair".
If you get no error message then you don't need to do any more.
If you get an error message telling you your "username" keychain can't be found (and if there was a keychain called "username" in the list it will disappear), then go to the "keychain viewer" window and click on the Keychain called "login", check that it has all your account information in it (passwords, secure notes etc). If it does then under the "file" menu, at the bottom, you will see an option to "make keychain login default", select this and then run "keychain first aid" (repair), it should complete without error.
Restart you mac and hopefully it should all work ok from there.
When you repair permissions with Disk Utility be prepared for a long run. It can take up to 20 minutes whereas it would take a couple of minutes with Tiger. Also a lot of people get this error message after running it:
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired
The common suggestion is to ignore it at this stage as no-one has identified a problem as a result of this.
Note also that "classic" (to run 0S9) programs will also not run under 10.5 (or any Intel mac) so if you still need these apps then do not upgrade.
A big problem for us is that Network Connect that allows broadband access to the hospital is broken under 10.5, if you do not have another computer to use this on at home or you do not have parallels or fusion installed on your machine (so you can run windows) and you need broadband access to the hospital I suggest you do NOT upgrade at this stage. I will let you know when Network Connect has been upgraded but it has been suggested this will not be until next year.
Another big problem is that filemaker 8.5 (and presumably lower versions will not run! Filemaker 9 will only run if the english language version is set to "US" http://filemaker.custhelp.com/cgi-bi...p?p_faqid=6649. An update is expected but no date is known.
Time Machine requires a separate hard disk (or partition) and is a great program for incremental backups and to check old versions of files. You CAN NOT boot off this backup however. I would still recommend having a cloned back up (using Superduper or Carbon Copy Cloner) which allows you to immediately boot off the backup disk. In other words, the ideal backup strategy is to have both types of backups.