Is OnyX safe to use?

I've had some kernel panic problems and now have an Open With contextual menu problem as noted in my previous submission here. It was suggested that I use a utility called OnyX which cleans caches among other things.

Does anyone have any experience with OnyX and any warnings?

Steven

G4 Quicksilver 867 mhz 1.5 GB RAM, Mac OS X (10.4.10)

Posted on Nov 10, 2007 10:04 AM

Reply
5 replies

Nov 10, 2007 10:10 AM in response to Steven Shmerler

Hello Steven,

Onyx is safe to use. There are a couple of things to be aware of though...

It is vital to get the correct version for your OS - There are several different versions of Onyx.

It is often the case that a MUCH longer boot time can occur after the first use of Onyx - So don't panic!

Some of Onyx' features / tasks mean that browser data is deleted - Make sure you know all your internet passwords. Such as the password to log into discussions!

Regards

Ian

Nov 10, 2007 4:47 PM in response to Steven Shmerler

Steven,

I can only add three comments to the information already provided by Ian Bickerstaffe.

1.
I suggest that you use the OnyX defaults which are provided in the Automation option to begin with.

2.
Be aware that after resetting the LaunchServices database, you may see a window which asks that you approve the opening of an application.

3.
OnyX provides windows which give you the option to Cancel or Continue. Take the time to read and decide what you want to do.

No Alibi.

Nov 10, 2007 8:39 PM in response to Steven Shmerler

Actually I wouldn't go as far as to say Onyx is safe to use. It is not a maintenance utility despite others calling it, Cocktail, Macaroni, Applejack, Jaguar-Tiger Cache Cleaners, and other multifunction utilities that do more than one task. The only safe utility to use is a backup utility. Everything else should be treated as an after backup utility used only, and I repeat only for troubleshooting, when you know what it is you are troubleshooting, and are ready to restore the backup if the troubleshooting doesn't save you time. If you don't have a backup, some troubleshooting utilities can actually dig you a deeper hole, whereby data recovery is the only way to restore your situation with expensive data recovery companies. Moral of the story, backup first, worry about alternate utilities later. My backup FAQ* goes into detail on that:

http://www.macmaps.com/backup.html

The real danger with many of the other utilities which specifically empty system caches is that caches can get corrupt, sometimes requiring a complete erase and install to resolve a persistently corrupting cache file. The real danger of prebinding utilities is you can render your Mac unbootable:

http://www.unsanity.org/archives/macos_x/shock_andawe.php

Permissions sometimes is not repaired properly by these utilities, unless you use Disk Utility of the boot drive. Though thankfully with Tiger and newer at least you can use the installer disc's disk utility on a newer version of the operating system than is on the installer DVD. Previous versions of the operating system were not as generous, and required you have an equal or greater version of Disk Utility to do repair permissions.

Whoever recommended Onyx did so only because they were lucky or knew what they were doing, and assumed you would too. These swiss army knife utilities need to be guarded with care, and only to be used when you have a backup on standby.

- * Links to my pages may give me compensation.

Nov 11, 2007 10:07 AM in response to Steven Shmerler

Thanks everyone. I think the most important aspect here, as stated by A Brody, is that 3rd party apps such as OnyX are trouble shooting and NOT routine maintenance. This really helped me, thanks. The statements here are discussed in detail at:

http://thexlab.com/faqs/faqs.html

Very helpful.

Next on my list is DiskWarrior, but I will start another thread for ease of search/find for others.

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Is OnyX safe to use?

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