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I had this happen to me when testing Monterey, but only on an external SSD, never the internal drive. I've always suspected that it has to do with the wrong partition being chosen when the system performs a reboot during the upgrade process. The update (as well as the clean installation) creates what appears to be a temporary partition that is used as the installation media during the install process. But if this partition is not chosen at boot time then the system boots the default OS partition. After a prolonged wait the systems seems to wipe any traces of the attempted system update. I've managed to get around this issue by waiting for the partition selection screen to show up in OCLP when the system reboots for the first time, there choosing the installation partition, after which to installation proceeds as normal. Never once have I been low on drive space. But perhaps I misunderstood the failures you were referring to.
I can say that I use to test Monterey in an external SSD, but connected to a SATA port via Pcie. In the final boot, the volume "Macos Installer" (or something like that) does not appears. Same drive, connected to USB, and do appears. Then I can continue the installation.
 
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This issue happens even on supported system starting approximately with Big Sur 11.3. If you get only the message you may ignore it. Neither reinstallation nor complete recreating of all APFS file systems could solve this. There might be a connection to FeatureUnlock. But even this is still under observation. If apps start to crash the sudo purge command from the terminal app may help.

Checking the open and closed issues on GitHub and searching this thread could have lead you to the same information.
Help may be on the way? ?A new version of FeatureUnlock v.1.0.4 has been rolled into the current Main branch nightly. ?
 
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There may be other problems with that iMac? On a 2 GHz Mini with the same GPU, Messages performs as expected w/o issues. Use it numerous times, daily. :cool:
Are you sure that your Apple default Messages app runs well, without any scrolling issue?
 
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Scrolls, send and receive videos, numerous contacts, big family, others. Catalina, Big Sur, Monterey all work the same. :rolleyes:
My Messages app scrolling only works with Catalina. Big Sur & Monterey are all very sluggish when scrolling to the point that it's not really practical to use it.
Would you have another close look under Big Sur & Monterey, when you have time? I am curious to know because I really want to have this Messages app working under Big Sur / Monterey.
And ironically the scrolling functions correctly if the Post-Volume Patch (non-metal acceleration) is NOT applied. But obviously this is not practical neither since other apps like safari need this patch.
 
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I'd concur your sentiment. It would be even better if @ASentientBot can fix the sluggish Messages app issue with pre-Metal GPU Macs so that my iMac10,1 with GeForce 9400 can also run Big Sur / Monterey.
P.S. I really need the Messages app, which is one of the main reasons for me to start learning macOS since earlier this year.
This is currently my top priority. Not able to give an estimate of how long it'll take, but it really annoys me too and I hope to fix it soon.
 
This is currently my top priority. Not able to give an estimate of how long it'll take, but it really annoys me too and I hope to fix it soon.
Thank you so much for the help and very pleased to know that you have made this your top priority and have been working on a solution. Sincerely wish miracles will eventually prevail, through your dedication and talent. Your non-metal GPU acceleration have saved a lot of Macs so far.
All the best.
 
My Messages app scrolling only works with Catalina. Big Sur & Monterey are all very sluggish when scrolling to the point that it's not really practical to use it.
Would you have another close look under Big Sur & Monterey, when you have time? I am curious to know because I really want to have this Messages app working under Big Sur / Monterey.
And ironically the scrolling functions correctly if the Post-Volume Patch (non-metal acceleration) is NOT applied. But obviously this is not practical neither since other apps like safari need this patch.
Miles of messages just not iPhone smooth, not enough to complain or be put-off. :rolleyes:
 
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Miles of messages just not smooth, not enough to complain or be put-off. :rolleyes:
It's good to know. The beauty of this world is that everyone is different :p I am glad this scrolling issue does not bother you that much. But I am just very irritated by this slow and stuttering scrolling issue.
 
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It's good to know. The beauty of this world is that everyone is different :p I am glad this scrolling issue does not bother you that much. But I am just very irritated by this slow and stuttering scrolling issue.
With these most primitive of unsupp Macs learning to use what is given seems appropriate? Dortania&Co. eventually sorts things out. ? ;)
 
With these most primitive of unsupp Macs learning to use what is given seems appropriate? Dortania&Co. eventually sorts things out. ? ;)
I like my iMacs very much, particularly the screens, which are far better than some of the new monitors and costed about the same ;) So I am planning to keep them for a long time. For the purpose of my user-case, nothing fancy and no games, it's more than adequate. I'd go so far as to say that they are superb, with the help from all the developers here.
 
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So apologies if this is posted somewhere updated MacBook Pro mid 2014 latest beta normally it gets stuck (assuming it’s Kepler patches) resulting in holding power button rebooting safe mode applying patches . I installed latest beta holding shift button which means I didn’t have to power down I could do the install completely it even had the time remaining countdown which I’ve not had since installing Monterey so my long way of asking a question is this is there with opencore (or other app) to force boot safe mode everytime rather than holding shift through a install meaning I can do the 2gb OTA auto into safe mode patch no more switching the machine off at the Apple logo. Thanks
 
Hello everyone!

Now I have another problem. I got an iMac from a colleague in mid-2010. I would also like to update it on Monterey. Everything installed the patch executed because of the EFI boot everything works!

But the WLAN card is on, but cannot find a network! What do I have to do so that the part finds a WLAN network. The interface "runs" but finds nothing!
 
Hello everyone!

Now I have another problem. I got an iMac from a colleague in mid-2010. I would also like to update it on Monterey. Everything installed the patch executed because of the EFI boot everything works!

But the WLAN card is on, but cannot find a network! What do I have to do so that the part finds a WLAN network. The interface "runs" but finds nothing!
Check the relevant chapter of OpenCore Legacy Patcher's online documentation if your iMac is perhaps affected by this:
With OCLP v0.2.5, we've added support for legacy Wi-Fi on Monterey. However some users may have noticed that they can't connect to wireless networks.


To work-around, we recommend users to manually connect using the "other" option on the Wi-Fi menu bar or manually adding the network on the "Network" preference pane.

In other words, go to the Network pref pane in the system preferences and add your Wi-Fi network manually by entering its SSID and its WPA2/3 password so that it appears in the list of known Wi-Fi networks. Check if that lets your iMac successfully connect to your Wi-Fi network.
 
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Hi there,

thank you but unfortunately that doesn't work either! The bluetooth module is strange but the WiFi doesn't stand a chance
 
Hi there,

thank you but unfortunately that doesn't work either! The bluetooth module is strange but the WiFi doesn't stand a chance
just wonder if the wifi works with High Sierra?
Did you apply the Post-Install Volume Patch after the installation of Monterey?
 
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So I have imported the patch again and lo and behold it works great and thanks so far for the help.

But now comes the next problem, the picture flickers in different colors, what can I do now?

An ATI Randeon HD 5750 1GB is installed.
 
So I have imported the patch again and lo and behold it works great and thanks so far for the help.

But now comes the next problem, the picture flickers in different colors, what can I do now?

An ATI Randeon HD 5750 1GB is installed.
I don't have first hand experience with an iMac's HD 5750, but you should have a look at this post by @RBSX1 on page 67 of this thread and check if it's relevant to your problem - quote:
To fix color flashing use ResXtreme and change for a 8 bit color resolution.
As far as I understand, it might be the problem described by e.g. Mark B. Tomlinson in his blog. And in case you can't access the ResXtreme website (at least I can't): archive.org is always your friend. :)
 
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One bigger gripe I have with oclp on the MacBookPro4,1 is that the second internal HDD (in replacement of the internal DVD-drive) and its partitions don’t get mounted. Do we have a fix for this, that i maybe just overlooked?
 
One bigger gripe I have with oclp on the MacBookPro4,1 is that the second internal HDD (in replacement of the internal DVD-drive) and its partitions don’t get mounted. Do we have a fix for this, that i maybe just overlooked?
The MacBookPro4,1's second internal drive is still connected via PATA / IDE and AppleIntelPIIXATA, the driver that was deployed by OCLP to re-enable PATA / IDE devices, is no longer functional in Monterey for yet unknown reasons. This is documented in OCLP GitHub issue #707. Feel free to join the analyzing efforts there!
 
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I don't have first hand experience with an iMac's HD 5750, but you should have a look at this post by @RBSX1 on page 67 of this thread and check if it's relevant to your problem - quote:

As far as I understand, it might be the problem described by e.g. Mark B. Tomlinson in his blog. And in case you can't access the ResXtreme website (at least I can't): archive.org is always your friend. :)
Hello, thanks that helped. I was hoping there would be a patch to get the 10 bits.
 
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