![]() ![]() Identify and confirm there is a hardware disk problem. In order to confirm a hardware failure, a professional would need to wipe out the Mac completely, break the Fusion pairing, test both the SSD and the HDD. You can use Time Machine or Carbon Copy Cloner to accomplish the task or you can just copy all your Desktop / Documents and anything else important off the Mac. I suspect your HDD drive has some bad sectors and it might be getting ready to die completely.īACKUP ALL YOUR DATA ASAP to an external drive large enough to hold it all. ![]() Any complete disk failures on either of those two drives can result in catastrophic data loss. Since you have a Fusion Drive in an iMac it consists of a small SSD volume paired with a HDD volume that is much larger. If the disk errors are on the System volumes then that might indicate a disk failure. Meanwhile the Data volume is where all your data and other user data as well as applications you installed reside. The OS is booted from that snapshot which is signed and sealed by Apple. Regardless, what's happening here is the System volume is the read-only (why it's greyed out) 'Macintosh HD' and the snapshot is taken from that read-only immutable volume. For example, the Data volume might be listed as 'Macintosh HD Data'. The display of this information will likely vary as this is how Ventura displays it. When you expand out all the tree branches you can see there's the APFS 'Container disk3' which holds the 'Macintosh HD volumes' which holds a greyed out Macintosh HD which has a 'Macintosh HD snapshot'. Here's an example of what I see on my internal SSD on my sidebar: Go to the View menu and select Show all Devices. Open up Disk Utility again, you don't need to be in Safe Mode nor booting from the USB drive. Thanks, this identifies the root cause of your problems. Nov 20 13:25:10 iMac osinstallersetupd: Operation queue failed with error: Error Domain= Code=1004 "An error occurred loading the update." UserInfo= 416 1 ![]() Nov 20 13:25:10 iMac osinstallersetupd: **** /macOS Install Data/UpdateBundle/AssetData/./payloadv2/payload.009 !=. Nov 20 13:25:00 iMac osinstallersetupd: Could not verify trust (5) using MobileSoftwareUpdate policy. Nov 20 13:25:00 iMac osinstallersetupd: Syncing extracted data to disk Nov 20 13:25:00 iMac osinstallersetupd: Finished extracting: succeeded ![]() I copy the moment when the installer stops abruptly. I even went into diagnostic mode and my hardware has no RAM or SSD problems. I have tried to do it in safe mode, in recovery mode, in recovery mode with the latest version available (Monterey) with no result. Now, I can't install anything higher than Mojave (10.14.6). I had BigSur and had the unfortunate idea to do a clean Monterey install. I've been trying for days to install Monterey on my 2019 iMac 5K. Monterey Update iMac19,1: MISSION: IMPOSSIBLE Hi everyone! "An error occurred preparing the update" Failed to prepare the software update. The installation problems occur in both the safe mode and regular login, and always at the 26 minutes remaining, and always produces the same error message: I decided to wait for Ventura to come out and when it did I encountered the same problems as above. I deleted the software update and attempted it again from both regular login and safe mode, both produced the same results, and always at the 26 minutes remaining. The installation process would start and usually at the 26 minutes remaining mark I would get the following error message "An error occurred preparing the update" Failed to prepare the software update. I would boot into safe mode and I was able to successfully download the update I attempted to install the update for Monterey, 12.6.2 In the past, this has not affected any Apple updates, or any other s/w updates) ( I have attempted all updates with and without the VPN connected and the results are the same. I have a VPN running connected to a US host. I have been trying to install the new Ventura Operating system unsuccessfully on my iMac since it was first released.ĢTb Fusion drive with 1.22TB of free space. ![]()
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