what is trim enabler??? On Nov 18, 2014, at 2:54 PM, John Robinson <[email protected]> wrote:
> Folks, I have must installed Yosemite, oh my, it’s the most beautiful OS I > have ever seen. Mail works great, I had waited as I heard mail was a > problem, but so far it’s good. > > However I do have a question. I have a Solid State Drive as the primary on > this Mini. I used Trim Enabler to keep it functioning as it should, now when > I try to load the App I get the following. > > I don’t really want to override Apple’s security in order to run Trim > Enabler, but what are the opinion’s of those in the know? If I don’t use > Trim Enabler what will happen to the drive? Any program that can be run over > the drive every so often will will perform the same function without altering > the Kernel Extension, such as Tech Tools? > > Any suggestions will be appreciated, many thanks. > > John > > > > > > In OS X 10.10 (Yosemite), Apple has introduced a new security requirement > called kext signing. (A kext is a kernel extension, or a driver, in Mac OS X) > Kext signing basically works by checking if all the drivers in the system are > unaltered by a third party, or approved by Apple. If they have been modified, > Yosemite will no longer load the driver. This is a means of enforcing > security, but also a way for Apple to control what hardware that third party > developers can release OS X support for. > Since Trim Enabler works by unlocking the Trim driver for 3rd party SSD’s, > this security setting prevents Trim Enabler to enable Trim on Yosemite. > To continue to use Trim Enabler and continue to get Trim for your third party > SSD, you first need to disable the kext signing security setting. > It is important to note that the kext-signing setting is global, if you > disable it you should be careful to only install system drivers from sources > that you trust. > > > Trim Enabler support > Trim Enabler 3.3 will disable the kext-signing setting automatically for you, > by giving a choice when you flip the switch. > By clicking Proceed, your computer will reboot with kext-signing disabled. > You can then flip the switch again to enable Trim. > When you flip the switch back to Off, Trim Enabler will ask you if you want > to restore the kext-signing setting back to normal. > > > Important issues > The kext-signing setting is stored in your Mac’s NVRAM/PRAM, a sort of flash > memory inside your Mac. This memory can be reset either by accident or by > intention (usually by troubleshooting issues with your hardware), causing > kext-signing setting to re-activate. > If you try to boot a Trim-enabled system with the kext-signing setting > re-activated, you will be met by a gray screen with a stop sign: > <prohibitory_sign.png> > This is your system telling you that a driver has been modified, and is not > allowed to load. > To avoid this situation, you can make sure to disable Trim before performing > any hardware maintenance or PRAM reset on your Mac. > > > _______________________________________________ > MacGroup mailing list > [email protected] > http://www.math.louisville.edu/mailman/listinfo/macgroup
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