Mavericks slow booting up

comics addict

macrumors 6502a
Original poster
Feb 16, 2013
598
38
I just upgraded my machine to the OS X Mavericks GM and have noticed that boot-up has gone from 9 to 20 seconds on my SSD. Shut down however seems to have shorten to less than 10 or so. Anyone else experiencing this ? :confused:
 

coldjeanzzz

macrumors 6502a
Nov 4, 2012
655
17
restart a few times and see if it stays at 20 seconds

i thought mine was slow too but after a few restarts it's now back in the 12-13 second range which is what it was on ML
 
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GP-SE

macrumors 6502
Feb 27, 2013
322
48
it's slower than ML for me also, but only about 5-6 seconds slower, so not that much.
 
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xgman

macrumors 601
Aug 6, 2007
4,859
661
Clear the kext caches:

sudo chown root:admin (enter password)

sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches


Do in terminal and reboot. make sure your start up disk is still selected correctly in preferences.
 
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MeUnix

macrumors 6502
Aug 21, 2013
355
2
San Francisco
On my MacBook, Mavericks GM boots up in about 14-15 seconds. A *little* slower than Mountain Lion booted up on the same machine.


- Kyle
 
Comment

ibarnett

macrumors regular
Aug 20, 2010
218
45
Gold Coast, Australia
Clear the kext caches:

sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches


Do in terminal and reboot. make sure your start up disk is still selected correctly in preferences.
Great tip!
I also had a slower start-up, this solved the problem, thanks!
 
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djtech42

macrumors 65816
Jun 23, 2012
1,429
49
Mason, OH
Clear the kext caches:

sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches


Do in terminal and reboot. make sure your start up disk is still selected correctly in preferences.
Whoa! I didn't even have a slow boot up, but this still improved the boot up time. It's around 8 seconds!
 
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micke1967

macrumors regular
Nov 1, 2012
104
2
Clear the kext caches:

sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches


Do in terminal and reboot. make sure your start up disk is still selected correctly in preferences.
Hi I dont have much experience with the terminal...
could you explain step-by-step how to do this??
I understand I need to open a terminal window but then what??
best regards
 
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Krazy Bill

macrumors 68030
Dec 21, 2011
2,985
3
Hi I dont have much experience with the terminal...
could you explain step-by-step how to do this??
I understand I need to open a terminal window but then what??
best regards
1.) Open Terminal. Copy/Paste this line to the terminal window:

Code:
sudo kextcache -system-prelinked-kernel
2.) Press Enter. Type your OSX password to allow changes. Wait for cursor.

3.) Copy/Paste this line to the terminal window and press Enter:

Code:
sudo kextcache -system-caches
4.) Quit Terminal. Reboot.
 
Comment

micke1967

macrumors regular
Nov 1, 2012
104
2
1.) Open Terminal. Copy/Paste this line to the terminal window:

Code:
sudo kextcache -system-prelinked-kernel
2.) Press Enter. Type your OSX password to allow changes. Wait for cursor.

3.) Copy/Paste this line to the terminal window and press Enter:

Code:
sudo kextcache -system-caches
4.) Quit Terminal. Reboot.
Hi Many thanks I will try this as soon as mavericks is out and ive installed it...great:)
 
Comment

xgman

macrumors 601
Aug 6, 2007
4,859
661
sometimes you first have to type sudo chown root:admin and the enter/your password

I find it's not a bad idea to run the above cache clearing commands every so often.
 
Comment

lapy

macrumors newbie
Jun 4, 2013
24
0
my rMBP 2013 i7 2.7ghz 16gb ram is slower booting up with Mavericks GM too, I never saw the spinning gear on Mountain Lion when booting up and now it goes for at least 5 seconds. It's not a huge deal but it seems to be a sign that there's something wrong. I already tried to clear caches etc. No change. And my system is kinda clean, just a few big applications installed like Office and Photoshop, all the rest are small apps from the App Store (no new apps since I switched to Mavericks).
 
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cwpics

macrumors newbie
Aug 8, 2013
4
0
Having similar issues on a my new mba. Cleared the cache etc but it's acceptable by any means.

Still can't believe it's free!
 
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djoliverm

macrumors newbie
Oct 21, 2013
29
0
My MBPr is taking MINUTES to boot

Hey guys, wondering if anybody else got this problem, but my MBPr is taking several minutes (about 5 minutes last time I timed it) to boot. It does boot eventually. I did a clean install and used migration assistant on a backup and deselected copying System settings. (On the final public release from the Mac App Store btw.)

I just did a safe boot to clear the dynamic loader shared cache, which took several minutes, and upon getting to the login window I immediately restarted the system. The following restart was very quick, like 5 seconds.

I then rebuilt the kernel extension caches like in this post, and again the boot up took several minutes. I then restarted and this time it was quick again.

I decided to then try a boot from a complete shutdown and I'm back again to it lasting several minutes. What could possibly be wrong? Any suggestions?

EDIT (Possibly fixed?): So after the initial boot I tried a series of successive restarts and they all clocked in at around 15 seconds total, so normal. And I just tried a boot from shutdown and it's back to normal as well. So fingers crossed it stays like this. Weird. Thanks for the post guys.
 
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MikeDVB

macrumors newbie
Dec 2, 2010
3
0
I'm having the same issue on Mavericks on a brand new [Late 2013 Edition] 15" MacBook Pro Retina.

It usually [9 times out of 10] takes roughly 2 to 3 minutes to get me to a log-in screen.

If I boot into safe mode and then shut down and boot normal it boots in a few seconds [very quick].

If I shut down from 'normal' mode and boot back up it takes 2 to 3 minutes to boot.

From the logs it looks to me like the boot cache is failing on every boot and being rebuilt [and loaded] which takes time - every time.

Have done a format/erase + fresh install twice now - issue persists.

Have an open ticket with Apple and it's in their Engineering department now. I believe this to be a bug with Mavericks but can't confirm this 100%. They do not believe it's hardware failure nor do they believe it's a software issue. Disk Utility tools all ran - etc.

For me the solution is simply to use sleep [and turn off power nap] until the system boots quickly every time as I'm used to.

Perhaps a reboot every couple of days to keep things 'fresh' when I'm not in a hurry to use the system.

I imagine with all of the changes in Mavericks they're probably being slammed with bug reports. I just hope 2 to 3 minute boot time on a machine that should take seconds will be prioritized if it is a bug.
 
Comment

djoliverm

macrumors newbie
Oct 21, 2013
29
0
I'm having the same issue on Mavericks on a brand new [Late 2013 Edition] 15" MacBook Pro Retina.

It usually [9 times out of 10] takes roughly 2 to 3 minutes to get me to a log-in screen.

If I boot into safe mode and then shut down and boot normal it boots in a few seconds [very quick].

If I shut down from 'normal' mode and boot back up it takes 2 to 3 minutes to boot.

From the logs it looks to me like the boot cache is failing on every boot and being rebuilt [and loaded] which takes time - every time.

Have done a format/erase + fresh install twice now - issue persists.

Have an open ticket with Apple and it's in their Engineering department now. I believe this to be a bug with Mavericks but can't confirm this 100%. They do not believe it's hardware failure nor do they believe it's a software issue. Disk Utility tools all ran - etc.

For me the solution is simply to use sleep [and turn off power nap] until the system boots quickly every time as I'm used to.

Perhaps a reboot every couple of days to keep things 'fresh' when I'm not in a hurry to use the system.

I imagine with all of the changes in Mavericks they're probably being slammed with bug reports. I just hope 2 to 3 minute boot time on a machine that should take seconds will be prioritized if it is a bug.
Does it hang on one particular line, especially the one I've referenced elsewhere in this thread? Can you boot in verbose mode and see in real time where it hangs? If it hangs at the exact same spot/error then that's interesting. Thing is that I don't think it's a huge problem since it doesn't seem to be a lot of people complaining about it.

Anyway, thanks for your input. Tomorrow I think I'm starting from fresh (no migration assistant) and I'll see how it performs literally right after a brand new install (although you've already tried twice and no luck). I'll also file a report.
 
Comment

mrleonhuang

macrumors newbie
Oct 23, 2013
14
0
Washington DC
I'm having the same issue on Mavericks on a brand new [Late 2013 Edition] 15" MacBook Pro Retina.

It usually [9 times out of 10] takes roughly 2 to 3 minutes to get me to a log-in screen.

If I boot into safe mode and then shut down and boot normal it boots in a few seconds [very quick].

If I shut down from 'normal' mode and boot back up it takes 2 to 3 minutes to boot.

From the logs it looks to me like the boot cache is failing on every boot and being rebuilt [and loaded] which takes time - every time.

Have done a format/erase + fresh install twice now - issue persists.

Have an open ticket with Apple and it's in their Engineering department now. I believe this to be a bug with Mavericks but can't confirm this 100%. They do not believe it's hardware failure nor do they believe it's a software issue. Disk Utility tools all ran - etc.

For me the solution is simply to use sleep [and turn off power nap] until the system boots quickly every time as I'm used to.

Perhaps a reboot every couple of days to keep things 'fresh' when I'm not in a hurry to use the system.

I imagine with all of the changes in Mavericks they're probably being slammed with bug reports. I just hope 2 to 3 minute boot time on a machine that should take seconds will be prioritized if it is a bug.
Yes, I am facing this problem, too. When I used the Mavericks GM1, everything was good. But when I downloaded the formal version from App Store and installed it, my boot up time is several minutes. I also tried every method I could use, trying to fix it, such as reinstall, reset NVRAM, PRAM and other terminal input methods, none of them could fix it.

By far, I have seen 3-4 users face to this problem, I also think that it is a bug of the new system since the problem did not even happen when I used Mavericks GM! I have totally no idea about how to fix it because I have tried every method already. Hopefully, this problem can be solve when system updates are available. I will keep track of the forum and pay attention to you guys' feedbacks.
 
Comment

ooo

macrumors 6502
Nov 23, 2007
252
1
Call yourself lucky 2-3 minutes... it's taking me 5-10 minutes on 15" MBPR (late 2013 model). What happen is my finder will freeze, so I'll try to restart my computer, this process takes forever so I end up force quitting my computer, then bootup becomes a pain...
 
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Mave10.9

macrumors newbie
Nov 10, 2013
1
0
I have a mbp 13" mid 2010 with crucial m500 120gb in the hdd's bay with the clean installation 10.9 in it. And what about this? I have some troubble on graphics:

https://www.dropbox.com/s/pitha5m6sb60mkl/V%C3%ADdeo%2008-11-13%2018.58.02.m4v
 
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Jabersky

macrumors newbie
Dec 25, 2013
2
0
2.5 Min Startup

I am also having a 2.5 min startup on my new 16G i7 Macbook Pro.:mad::mad::mad:
 
Comment

Jabersky

macrumors newbie
Dec 25, 2013
2
0
Yes, I am facing this problem, too. When I used the Mavericks GM1, everything was good. But when I downloaded the formal version from App Store and installed it, my boot up time is several minutes. I also tried every method I could use, trying to fix it, such as reinstall, reset NVRAM, PRAM and other terminal input methods, none of them could fix it.

By far, I have seen 3-4 users face to this problem, I also think that it is a bug of the new system since the problem did not even happen when I used Mavericks GM! I have totally no idea about how to fix it because I have tried every method already. Hopefully, this problem can be solve when system updates are available. I will keep track of the forum and pay attention to you guys' feedbacks.

This, so far, has fixed my new Macbook Pro - although I have only rebooted twice....

It appears to be an issue with external Western Digital hard drive. I am running a WDD MyBook Velociraptor external drive drive and after booting in verbose mode and doing some digging I did the following.

Three steps:

1) I deleted the "folders" folder in /var/folders (sudo rm -r folders)

2) Go to System Preferences > Users & Groups > Login Items and remove the "WDD..." application from the list.

3) Restart
 
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CaMeL78

macrumors newbie
Dec 28, 2013
1
0
booting up time: > 6 min

Hi guys

I have the same problem.
Just got a new Mac book pro last week.

Problem not solved so far...

anyone a quick solution that works?
any news on that issue?

thx a lot
 
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