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Unable to Install Updates Anymore

Joined
Aug 17, 2010
Messages
130
Motherboard
Z390 Aorus Elite-CF
CPU
i7-8700K
Graphics
RX 580
Mac
iMac
Mobile Phone
Android
Unable to install updates for the first time. All previous updates went smoothly, not sure what changed this time. Here's what I see when I try to update from the Apple Software Update, after I restart and choose the "Data" drive to boot from:



On the other hand, when I try to update via the stand-alone installer, I get this:




Any idea what could be going wrong please?

Thanks!
 
Joined
Aug 7, 2018
Messages
536
Motherboard
Z370M-DS3H
CPU
i7-8700K (OC 5Ghz)
Graphics
RX580 & UHD630 Headless
Supplemental update != combo update.

It should be applied over the same OS version.

But you can use the 10.15.4 Combo Update (the supplemental is already included)
 
Joined
Aug 7, 2018
Messages
536
Motherboard
Z370M-DS3H
CPU
i7-8700K (OC 5Ghz)
Graphics
RX580 & UHD630 Headless
Read again what I said.

You are trying to install a "Supplemental" update for 10.15.4 over 10.15.3.

You must update to 10.15.4 first. But like I mentioned, if you use a 10.15.4 combo update, the supplemental update is included in it.
 
Joined
Aug 17, 2010
Messages
130
Motherboard
Z390 Aorus Elite-CF
CPU
i7-8700K
Graphics
RX 580
Mac
iMac
Mobile Phone
Android
That's what I meant. I tried with the combo update this time, but the same error comes up when the system restarts and I choose the MacOS Install Data to boot from....

Read again what I said.

You are trying to install a "Supplemental" update for 10.15.4 over 10.15.3.

You must update to 10.15.4 first. But like I mentioned, if you use a 10.15.4 combo update, the supplemental update is included in it.
 
Joined
Mar 5, 2013
Messages
62
Motherboard
Asus ROG Strix X570-E
CPU
Ryzen 3950X
Graphics
RX Vega 64
I have the same issue going from 10.15.3 to 10.15.5. Not sure what is happening. I see the same error about locked files.
 
Joined
Apr 2, 2017
Messages
58
Motherboard
Gigabyte GA-Z170-D3H f22f
CPU
i3 6100
Graphics
530
Mobile Phone
iOS
i have same issue but i will open clover plist and enable -v flag then problem is sloved :thumbup:
 
Joined
Mar 5, 2013
Messages
62
Motherboard
Asus ROG Strix X570-E
CPU
Ryzen 3950X
Graphics
RX Vega 64
how does -v solve the problem?
 
Joined
Apr 2, 2017
Messages
58
Motherboard
Gigabyte GA-Z170-D3H f22f
CPU
i3 6100
Graphics
530
Mobile Phone
iOS
how does -v solve the problem?
It work for me 1st 3 try my system can’t install macOS 10.15.5 after than I I enable -v flag aka safe mode then my system install the update.
 
Joined
Aug 7, 2018
Messages
536
Motherboard
Z370M-DS3H
CPU
i7-8700K (OC 5Ghz)
Graphics
RX580 & UHD630 Headless
It work for me 1st 3 try my system can’t install macOS 10.15.5 after than I I enable -v flag aka safe mode then my system install the update.
-v isn't safe mode. It stands for Verbose Mode and will show you what it does when booting up until your GPU framebuffer is loaded.
 
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