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0970373

Suspended
Mar 15, 2008
2,727
1,412
I used these commands:

sudo nvram boot-args="rootless=0"
sudo nvram boot-args="kext-dev-mode=1"

and did a reboot. Then, I flipped the switch on TRIM Enabler, rebooted again, and it worked. System Information shows that my Corsair SSD has TRIM enabled, so I'm assuming all is well.

Yeah, that same process is not working for my mid-2011 11" MBA. I'm fine w/o trim for now but hoping it gets sorted.
 

Tubamajuba

macrumors 68020
Jun 8, 2011
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Yeah, that same process is not working for my mid-2011 11" MBA. I'm fine w/o trim for now but hoping it gets sorted.
That's weird. I had to repeat the process to get it to work, because the first time it gave me some error about a missing driver. What are you seeing?
 

0970373

Suspended
Mar 15, 2008
2,727
1,412
That's weird. I had to repeat the process to get it to work, because the first time it gave me some error about a missing driver. What are you seeing?

I'm not seeing anything that would suggest it shouldn't work as far as any error messages. I enter terminal commands, reboot. Launch TRIM Enabler. Turn on TRIM, reboot. TRIM Enabler says TRIM is not active. I checked System Report to confirm that TRIM is not enabled ¯\_(ツ)_/¯
 

Tubamajuba

macrumors 68020
Jun 8, 2011
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I'm not seeing anything that would suggest it shouldn't work as far as any error messages. I enter terminal commands, reboot. Launch TRIM Enabler. Turn on TRIM, reboot. TRIM Enabler says TRIM is not active. I checked System Report to confirm that TRIM is not enabled ¯\_(ツ)_/¯
Wow, I don't know what to say... but I'm optimistic that TRIM Enabler can be officially updated to work with El Capitan. Hopefully some other people try this out and let us know what happens for them.
 

nos1609

macrumors member
Jun 8, 2015
40
26
Moscow
TRIM is perfectly working with on 10.11

Just type in the Terminal window:
Code:
sudo nvram boot-args="rootless=0"

or if you'd also like to disable swapping:
Code:
sudo nvram boot-args="rootless=0 vm_compressor=2"

and then enable TRIM with any app like TRIM Enabler or Disk Sensei

A little addition for those, who wants to profit of the high level of security in OS X 10.11 aka RootLess(Parano-mode:)).
After verifying that TRIM is successfully enabled you might want remove the rootless backdoor, because it becomes useless for TRIM normal functionning. To do so just type in Terminal
Code:
sudo nvram -d boot-args
or
Code:
sudo nvram boot-args="vm_compressor=2"
respectively. That's it. Now, That's exactly Yosemite-like;)



To revert:
disable the trim switch in any app you used and just hold ⌘⌥PR at boot and wait for a second startup chime
Warning! if you don't switch off trim manually you'll get your system unbootable!
Just in case you've already fogotten to do it and OS X doesn't boot

Снимок экрана 2015-06-09 в 8.51.10.png
 
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flowrider

macrumors 604
Nov 23, 2012
7,321
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^^^^What happens if you want to modify (update OS) how do you reverse the terminal command? Or is it just necessary to turn off trim before the update and then reenable? This needs to be explored.

On another note, it seems odd they haven't modified the splash screen to read El Capitan?

And, I tried using the Manual Trim command in Disk Sensei and unless you have a couple of hours to kill, you won't be using it much.

Lou
 

matlacki

macrumors newbie
Jun 4, 2011
3
0
I just ran El Capital installation and completely forgot I have the trim enabler on. Now my imac boots up with a message on the screen saying something about mismatching partitions. Any idea how to fix it?
 

KALLT

macrumors 603
Sep 23, 2008
5,380
3,415
Also note that El Capitan removes the repair permissions feature from Disk Utility and the corresponding diskutil command. If I understood this correctly, that feature was rendered obsolete because of the new rootless feature that blocks permission changes to system files, which is now stopping Trim Enabler. If you disable rootless, you can no longer perform any repair permissions operation in case you do need it. I suppose that only a reinstall or system update will fix your permissions now. How this is going to affect Trim Enabler, we have to see. I suspect that any update will override the modifications done by Trim Enabler, so you have to go through the entire process again.
 

flowrider

macrumors 604
Nov 23, 2012
7,321
3,003
^^^^Yes, He posted:

If you try to enable Trim on El Cap, it will look like it works but nothing really happens.
You don’t even have to restart, you can just reopen the app and you will see that Trim is still off.
I will provide updates with workarounds for this.
 

xgman

macrumors 603
Aug 6, 2007
5,697
1,425
So does this command in effect make all system files that were not locked down in Yosemite, unlocked in El Cap?
 

Bobino

macrumors newbie
Apr 5, 2006
5
2
New York City
It's really hard to understand why Apple has chosen not to support TRIM for 3rd party SSDs. Contrary to what some have said, the market for 3rd party SSds is most likely creative content producers - - the target audience for the MacPro. How is it rational to make life more difficult for this audience? Not to mention that Apple's policy in this regard seems, at least to me and some colleagues with legal expertise, a blatant violation of the antitrust laws. Anyone ever hear of "restraint of trade?"
 
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thefredelement

macrumors 65816
Apr 10, 2012
1,196
648
New York
Also note that El Capitan removes the repair permissions feature from Disk Utility and the corresponding diskutil command. If I understood this correctly, that feature was rendered obsolete because of the new rootless feature that blocks permission changes to system files, which is now stopping Trim Enabler. If you disable rootless, you can no longer perform any repair permissions operation in case you do need it. I suppose that only a reinstall or system update will fix your permissions now. How this is going to affect Trim Enabler, we have to see. I suspect that any update will override the modifications done by Trim Enabler, so you have to go through the entire process again.

It's still there via terminal, when I ran it it fixed a TON of errors.
 

CheMillan

macrumors regular
Original poster
Jan 5, 2015
104
52
Los Angeles
Apple is encouraging users to hack into the OS by not supporting TRIM on non-Apple SSDs and blocking users from modifying the OS will have the opposite effect. I've been a faithful hardcore Mac user for many years and I've spent thousands of dollars on Apple hardware but it seems that custom upgrading your Mac the way you want it will become impossible such as DIY SSD upgrades with each new OS release. Using a hacking tool like TRIM Enabler is not the same as native TRIM support. I will not be upgrading my iMac or MacBook Pro to El Capitan. I will be using Mavericks for as long as it takes. I'm very disappointed in Apple.
 

Partron22

macrumors 68030
Apr 13, 2011
2,655
808
Yes
SSD's works nicely through USB3. Not 20gG per minute, but 9 is a nice improvement on 1, 2 or even 6.
Apple burnt us on Firewire. Not having much desire to court a Thunderbolt storage debacle this time around.
 
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