Slow boot after upgrading to macOS High Sierra

[tubeexperience]

After upgrading to macOS High Sierra, boot time went from 10 sec to 1 min after upgrading to macOS High Sierra.

I have seen the problem discussed here: https://forums.macrumors.com/threads/macos-high-sierra-slow-boot-up.2075487/

That said, I don't see anything definitive as to what the problem is nor how to correct it.

 

[ssmed]

Is the affected machine fitted with an SSD or HDD? If the latter it seems to be the way it is. You can make a cup of tea whilst my cloned copy starts up of a fast back-up disk.

edited for punctuation

 

[tubeexperience]

Is the affected machine fitted with an SSD or HDD? If the latter it seems to be the way it is. You can make a cup of tea whilst my cloned copy starts up of a fast back-up disk.

edited for punctuation

I have an SSD with TRIM enabled.

This boot time reminds me of when I used to have a hard drive.

 

[TC_GoldRush]

I have an SSD with TRIM enabled.

This boot time reminds me of when I used to have a hard drive.

What year is your machine? Are there any other slowdowns, or is it just the boot?

 

[tubeexperience]

What year is your machine? Are there any other slowdowns, or is it just the boot?

MacBook Pro (17-inch, Late 2011)

The slowdown just affects boot

 

[TC_GoldRush]

MacBook Pro (17-inch, Late 2011)

The slowdown just affects boot

So we have a 6-7 year old Machine.. with SSD... While the 17inch is an AMAZING machine, it is getting rather dated... I'd go back to MacOS Sierra if possible, there's really no reason to upgrade to High Sierra.

 

[casperes1996]

The slowdown just affects boot

I'd recommend clearing the boot cache (OnyX can do this)

If it doesn't work, you may want to try and see if the problem persists on an HFS+ partitioned HS setup.

 

[tubeexperience]

So we have a 6-7 year old Machine.. with SSD... While the 17inch is an AMAZING machine, it is getting rather dated... I'd go back to MacOS Sierra if possible, there's really no reason to upgrade to High Sierra.

It has a quad-core Sandy Bridge processor.

That should be plenty.

Also, I just got annoyed getting prompted to upgrade to macOS High Sierra every day.

 

[TC_GoldRush]

It has a quad-core Sandy Bridge processor.

That should be plenty.

Also, I just got annoyed getting prompted to upgrade to macOS High Sierra every day.

Sorry I forgot how apple is so bitchy nowadays. I never get prompted for updates on Mac OSX 10.9. The processor is fine, all I can say is good luck!

 

[tubeexperience]

I'd recommend clearing the boot cache (OnyX can do this)

If it doesn't work, you may want to try and see if the problem persists on an HFS+ partitioned HS setup.

I cleared the boot cache.

It didn't change the boot time at all.

 

[h9826790]

If it's a self upgraded SSD, disable TRIM can fix the slow boot (may be few more small issues as well).

If you don't want to disable TRIM, then revert to HFS+ can also fix this slow boot (you need to re-format your SSD. Make a clean installation via terminal, or recovery by clone is your own choice)

 

[tubeexperience]

If it's a self upgraded SSD, disable TRIM can fix the slow boot (may be few more small issues as well).

If you don't want to disable TRIM, then revert to HFS+ can also fix this slow boot (you need to re-format your SSD. Make a clean installation via terminal, or recovery by clone is your own choice)

Upon further investigation, it does appear that this is an issue with the APFS introduced with High Sierra

https://cindori.org/apple-file-system-slow-boot-high-sierra/

How this slip past QA is beyond me.

Seriously, how could Apple engineers not noticed that it takes 6x as long to boot?

Or more likely, this is the byproduct of the Tim Cook era, when Apple is more concerned about selling trendy items to rich kids while everything else goes out the window.

 

[casperes1996]

How this slip past QA is beyond me.

Seriously, how could Apple engineers not noticed that it takes 6x as long to boot?

Or more likely, this is the byproduct of the Tim Cook era, when Apple is more concerned about selling trendy items to rich kids while everything else goes out the window.

Well, as evident by TRIM originally only being for Apple SSDs, manually upgraded SSDs aren't very well supported by Apple

 

[Mac Hammer Fan]

tubeexperience, I would take the wise advice from h9826790 if I were you. Go back to HFS+. I use this on my both Mac Pro's with SSDs. I cloned from a hard disk where I installed HS first.