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13 min. boot time

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Paul Szilard
13 min. boot time
on Aug 12, 2018 at 5:45:17 am

Hi people,

I have an iMac PRO 64GB ram, 1TB SSD and some peripherals. I also have around 500 Apps (aka programs) installed. I do run daily clones and Time Machine.

My iMac used to boot up in about 60 seconds, but now takes 13 MINUTES! I just tried to boot my MacBook Air via USB using the iMac's clone and it took about 30 minutes. This makes sense as USB is slower than internal SSD, however there is something that puts in a wait of about 12 minutes when the progress bar gets about 2/3 of the way.

I know that you can't just say "such and such" and fix this, but can anyone give me a clue on how to track down and fix this problem?

Note, I have tried both safe mode and single user modes and it makes no difference to the boot time!

I am also experiencing shutdown problems. Namely 50% of the time I don't get a shutdown and would have to hold in the Power Button.

Thanks in advance...

paul
-apprentice-
joined 25 Nov 2012
platform OS X iMac 27" 32GB ram 1TB SSD, LR and FCPX etc.


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John Rofrano
Re: 13 min. boot time
on Aug 12, 2018 at 8:21:18 pm

My guess would be a corrupt file system. Boot into Recovery mode and use Disk Utility to run First Aid on the boot partition. If you get errors, run it again until there are no errors left.

~jr

http://www.johnrofrano.com
http://www.vasstsoftware.com



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Paul Szilard
Re: 13 min. boot time
on Aug 12, 2018 at 9:51:51 pm

I had already done that. Do you think that something would be logged somewhere? I am thinking that the OS is waiting for something, like mounting a LAN drive or something...

paul
-apprentice-
joined 25 Nov 2012
platform OS X iMac 27" 32GB ram 1TB SSD, LR and FCPX etc.


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Jared Ewing
Re: 13 min. boot time
on Aug 14, 2018 at 7:50:52 pm

Hi Paul,

Have you tried Verbose mode? You may be able to see where the startup / shutdowns are getting stuck for an extended period of time.

https://support.apple.com/HT201573


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Paul Szilard
Re: 13 min. boot time
on Aug 14, 2018 at 11:12:42 pm

Yes I have, but couldn't make head or tail of it! :)

paul
-apprentice-
joined 25 Nov 2012
platform OS X iMac 27" 32GB ram 1TB SSD, LR and FCPX etc.


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Jared Ewing
Re: 13 min. boot time
on Aug 14, 2018 at 11:23:18 pm

I can take a look at it if you’d like, just send a recording to FinalCutProHelp@me.com


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Paul Szilard
Re: 13 min. boot time
on Aug 19, 2018 at 4:22:48 am

Thanks for the kind offer, however I took a different approach:
1) Clone to 1TB SSD
2) Format internal SSD drive
3) Install OS X and restore from external cloned SSD

Result: Boot time 17.9 seconds! Shutdown also very fast.

Don't understand the reason behind this, but there you are.

paul
-apprentice-
joined 25 Nov 2012
platform OS X iMac 27" 32GB ram 1TB SSD, LR and FCPX etc.


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Jared Ewing
Re: 13 min. boot time
on Aug 19, 2018 at 4:24:39 am

That’s awesome news! Thank you for posting the fix.


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Paul Szilard
Re: 13 min. boot time
on Aug 19, 2018 at 4:29:47 am

ps: Just ran an internal SSD disk speed test.

AJA System Test
Write: 2,972 MBps and read 2,442 MBps

BlackMagic Speed Test
Write: 2,993 MBps Read: 2,485 MBps

And to Promise Pegasus R3 on TB3
Write: 1,200 MBps Read: 580 MBps

Don't know why write is faster than read. Can anyone tell me?

Impressive speed.

paul
-apprentice-
joined 25 Nov 2012
platform OS X iMac 27" 32GB ram 1TB SSD, LR and FCPX etc.


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