Really slow startup after SSD upgrade

tubeexperience

macrumors 68040
Original poster
Feb 17, 2016
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I upgraded a MacBook Pro with an SSD, (which probably should have been done a long time ago).

Or as of my roommate say: "What's an SSD? Is that like a type of hard drive?" She is not exactly tech savvy. No wonder we are such good friends. lol

Anyway, after the upgrade, startup is REALLY slow. It would hang right after power on.

I don't mean that it boots slow. It boots FAST! Applications open almost instantaneously after boot.

I think that, for some reason, it doesn't quite know to boot from the drive and then hang.

It's actually faster for me to press "option" during startup and select the drive.
 

keysofanxiety

macrumors G3
Nov 23, 2011
9,467
24,215
I upgraded a MacBook Pro with an SSD, (which probably should have been done a long time ago).

Or as of my roommate say: "What's an SSD? Is that like a type of hard drive?" She is not exactly tech savvy. No wonder we are such good friends. lol

Anyway, after the upgrade, startup is REALLY slow. It would hang right after power on.

I don't mean that it boots slow. It boots FAST! Applications open almost instantaneously after boot.

I think that, for some reason, it doesn't quite know to boot from the drive and then hang.

It's actually faster for me to press "option" during startup and select the drive.
Let me guess: white screen for ages before you see the Apple logo?

When you turn it on again, press and hold CMD + ALT + P + R until you hear the Apple 'boot chime' 3 times, then let go. Should be better from there. :)
 

tubeexperience

macrumors 68040
Original poster
Feb 17, 2016
3,192
3,881
Let me guess: white screen for ages before you see the Apple logo?
Yes, that is exactly it.

Let me guess: white screen for ages before you see the Apple logo?

As soon as you turn it on again, press and hold CMD + ALT + P + R until you hear the Apple 'boot chime' 3 times, then let go. Should be better from there. :)
Will do. Good night!
 
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snaky69

macrumors 603
Mar 14, 2008
5,903
480
I upgraded a MacBook Pro with an SSD, (which probably should have been done a long time ago).

Or as of my roommate say: "What's an SSD? Is that like a type of hard drive?" She is not exactly tech savvy. No wonder we are such good friends. lol

Anyway, after the upgrade, startup is REALLY slow. It would hang right after power on.

I don't mean that it boots slow. It boots FAST! Applications open almost instantaneously after boot.

I think that, for some reason, it doesn't quite know to boot from the drive and then hang.

It's actually faster for me to press "option" during startup and select the drive.
You can also play in system preferences and select your preferred boot volume. I'm not on a Mac right now so I can't really tell you where to look, but I do know that in some cases switching hard drives may cause this setting to be lost, causing abnormally long boot times. I believe I had to do it on my own machine back when I switched to a SSD.
 

robvas

macrumors 68030
Mar 29, 2009
2,801
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USA
You can also play in system preferences and select your preferred boot volume. I'm not on a Mac right now so I can't really tell you where to look, but I do know that in some cases switching hard drives may cause this setting to be lost, causing abnormally long boot times. I believe I had to do it on my own machine back when I switched to a SSD.
System Preferences -> Startup Disk

 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,134
8,806
California
This, exactly. Thank you.
Yup... that is almost certainly the issue here. If you install a new drive and don't select it in that screen the system spends a bunch of time searching around for boot volumes before finally finding the new drive.
 

tubeexperience

macrumors 68040
Original poster
Feb 17, 2016
3,192
3,881
You can also play in system preferences and select your preferred boot volume. I'm not on a Mac right now so I can't really tell you where to look, but I do know that in some cases switching hard drives may cause this setting to be lost, causing abnormally long boot times. I believe I had to do it on my own machine back when I switched to a SSD.
System Preferences -> Startup Disk

Yup... that is almost certainly the issue here. If you install a new drive and don't select it in that screen the system spends a bunch of time searching around for boot volumes before finally finding the new drive.
That resolved the issue.

I am not sure why Mac PCs have trouble figuring out that it should boot from the only drive that it's connected to.

Windows PCs just boot from whatever it can find, and you don't have to go tweak the UEFI/BIOS.

_________________________________________________________________________________________________

Actually, I upgraded a few dozen iMacs at work with SSDs and some of them have this problem, but nobody said anything.

lol
 
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Weaselboy

Moderator
Staff member
Jan 23, 2005
29,134
8,806
California
I am not sure why Mac PCs have trouble figuring out that it should boot from the only drive that it's connected to.
I believe I read somewhere if you don't have that selected it also looks around for a netboot option, so that makes it take even longer to circle around to the internal disk.

Glad you are fixed up. :)