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User profile for user: mwfgpwemtb5
mwfgpwemtb5 Author
User level: Level 1
8 points

Boot Time very long since update to big sur

iMac 27” 5k retina 1t fusion drive now has very slow boot up since upgrade to Big Sur

iMac 27″, macOS 11.2

Posted on May 2, 2021 8:44 PM

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User profile for user: Jack-19
Jack-19
User level: Level 8
46,008 points

Posted on May 2, 2021 8:46 PM

Hi mwfgpwemtb5,


Please try;


Cheers,


Jack

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User profile for user: mwfgpwemtb5
mwfgpwemtb5 Author
User level: Level 1
8 points

May 4, 2021 8:45 PM in response to Jack-19

Hi Jack,


I have tried your suggestions with no change, I have now installed Big Sur on an external SSD drive and booting time now reduced from almost 5 min. down to 37 seconds, I think it may be due to the fusion drive not having enough SSD space for Big Sur so it is split between SSD an Mechanical drive indicated by a quick first 1/3 of startup bar progress is quick and the balance of approximately 4 min for the remaining 2/3 including logon.


Regards


Michael

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Boot Time very long since update to big sur

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