If you have filesystem errors, Mac OS X doesn't allow you to repair the startup disk, so you need to boot from a CD to run a repair utility. Of course if you formatted your drive in UFS, tools like Disk First Aid and Norton Utilities won't be able to do anything for you. However, Apple has provided a solution.
If you boot from the OS X install CD, you can go to the Installer menu, and choose "Open Disk Utility...". This will allow you to test and repair both UFS and HFS+ disks, without having to venture into the scary land of terminals and Single User Mode.
This is completely useless tip, but OS X stores the version number in /System/Library/CoreServices/SystemVersion.plist
If you edit this file, you will be able to make it say Mac OS 3 (build 3p14) in the about this mac.
[Editor's note: This shouldn't bother anything like future upgrades, since they look elsewhere to see if they're needed ... however, use at your own risk. During the Public Beta, people had great fun changing the version number and publishing screenshots to confuse forum readers!]
I noticed on MacFixIt today that someone commented on the system.log file getting filled with data from the Adaptec SCSI drivers. So I took a look at system.log in the /var/log directory, and was surprised at what I saw:
May 15 10:01:41 mach_kernel: ADPT_OSI_IndicateQueueFrozen: id 4, freeze May 15 10:01:41 mach_kernel: ADPT_OSI_IndicateGenerationChange (nop) May 15 10:01:41 mach_kernel: ADPT_OSI_IndicateQueueFrozen: id 4, unfreeze May 15 10:01:42 mach_kernel: ADPT_OSI_IndicateQueueFrozen: id 4, freeze May 15 10:01:42 mach_kernel: ADPT_OSI_IndicateGenerationChange (nop) May 15 10:01:42 mach_kernel: ADPT_OSI_IndicateQueueFrozen: id 4, unfreeze
As you can see, all those messages were written in the span of two seconds. My system.log file was over 5.5mb in size, and the system had backed up about six previous logs, all over 2mb in size. You can see these in the list as system.log.0.gz, system.log.1.gz, etc.
I deleted the backup log files, and will remove the drivers later tonight (see the Adaptec ReadMe for instructions on how to do so).
So if you've noticed some vanishing drive space, and have the Adaptec drivers installed, check your log files!
I'm pretty sure almost everyone has tried the trick of putting an alias of your hard drive(s) in the dock. However, this thread on the MacFixIt boards has a great tip from 'johnq' for putting one icon with all your drives (including removables) into just one dock icon. The process basically involves creating a symbolic link (from the terminal) to your /Volumes folder, and then making an alias of that symbolic link so that you can use a customized icon in the dock.
Head on over to MacFixIt and read all about it! Quite cool...
OK, i know its been said in various ways on this site, but i'll say it again, as i found out today how similar OS9+ and OS X are. If something changes in your OS X enviroment, some configuration, the look of your desktop, your mailbox has suddenly added more boxes, folders are in the wrong place, or like me, all of your invisible files become visible, SCRAP THE PREFERENCES relative to the change.
if you're unsure if it's the preferences, then login as someone else and see if it stays the same, if it doesn't, its more than likely to be a prefence change, so dump it in the trash. you wont have to delete it, it wont work from the trash. after you RESTART, if the problem still hasn't changed, you can move it back (say yest to "replace new with old") no harm done. OS X isn't that different after all.
[Editor's note: I published a similar tip back in December, but it bears repeating. It's good advice, and you can find your user's preference files in your home directory, then in Library/Preferences]
If you want to enable automatic login on Mac OS X remotely you can to this by using ssh and the niutil command. This requires that you have enabled "Allow remote login" in the System Preferences, of course.
1) Open an ssh session to your Mac.
2) type su to become root.
3) To enable the automatic login, the property "username" must be found by loginwindow in the local netinfo database. Here is how you do it:
Check your software update panel ... I just installed it, and I'll post back details after I restart!
OK, here are the details. The modified files list seems to indicate that there have been changes to the BSD kernel, ADB I/O, CD storage, DVD storage, graphics I/O, networking, PCI, and a number of other areas. I've posted the whole list in the remainder of the article, in case you'd like to see it (it's not too long).
As for the operational changes, I can't say that it feels much different, but I'll have more to say after I get a chance to re-run my benchmark suite this evening. Apparently it squelches one bug in the Finder dealing with folders with large numbers of items. If you had over some relatively small number (600ish) in one folder, all the Finder would show was 539. They'd be there (you could see them in FTP or the terminal), but the Finder wouldn't work with them.