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Lovebug10101

macrumors newbie
Jul 27, 2023
2
0
Hi there. I have a 2011 MacBook Pro and I would like to install both systems in different disk partitions (of the same disk) to be accesible whenever I need.



I've achieved to install a fresh copy of both systems (firstly HS and then Monterey), but the partition of Monterey dissapeared in High Sierra. This partition is only visible via Disk Utility, but I cannot boot to Monterey (Both into system preferences/startup disk, neither on Startup Manager pressing "Alt").



Also I have the error message "Incompatible Disk. This disk uses features that are not supported on this version of MacOS" when I start High Sierra.



Is possible to have installed Monterey and High Sierra and use both systems without any externals?



Thanks!
 

deeveedee

macrumors 65816
May 2, 2019
1,452
2,115
Peoria, IL United States
MBP 8,1 running OCLP 6.8 and MacOS 12.6.8
no issues so far
Same for my MBP6,2.

Note: I was previously running Monterey 12.6.7 patched with OCLP-AMFIPass-Beta4 (AMFI & LV Enabled, AMFIPass.kext 1.3.1). I updated my EFI with OCLP-0.6.8, upgraded Monterey from 12.6.7 -> 12.6.8 and then applied OCLP 0.6.8 post-install patches (all while AMFI and LV remained fully enabled). The OCLP upgrade from the AMFIPass Beta Fork to the 0.6.8 production version was flawless. Well done, Devs!
 
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miscend

macrumors regular
Nov 5, 2009
141
73
Opencore Legacy Patcher prompted me to install its latest update today. After I let it install, it asked to restart the computer. Now the computer gets stuck when booting up.
 

Larry-K

macrumors 68000
Jun 28, 2011
1,909
2,364
Opencore Legacy Patcher prompted me to install its latest update today. After I let it install, it asked to restart the computer. Now the computer gets stuck when booting up.
Did you try booting in "Safe" mode?
Mine did that after I did a migration, it had previously booted without issue.
 

miscend

macrumors regular
Nov 5, 2009
141
73
Did you try booting in "Safe" mode?
Mine did that after I did a migration, it had previously booted without issue.
I tried that because it had worked for me last time it didn't boot. But it didn't work this time, so I had to a clean install.
 

Vvglyy Wzxit

macrumors member
Jul 4, 2020
46
8
Hello,

After trying upgrading on Ventura, i did some huge mistakes :(
i lost my mojave backup HDD with oclp on it and my HDD with Ventura have been wiped
I still have snapshots in a time machines from my former Monterey on HDD. But how to downgrade on monterey with no OCLP and no macOS
I'm on Arch Linux to use my mac pro 2012, now

Each usb bootable of Mojave - if it's really the procedure - i made on arch linux can't be seen on boot screen, so can't be boot (I used DD command most of the time).

Tried :
Dortania Making the installer
coolaj86 Create a Bootable MacOS Recovery USB with Linux

Any life savior?
Thanks
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
Updated OCLP from 0.6.7 to 0.6.8 then ran post-install to update patch (Kepler). Everything went smoothly, no issues. Used system update to install Safari update and Monterey security update but could only install Safari, Monterey 12.6.8 could not be installed so I'm still running 12.6.7.

Tried to run installer again at boot options but it restarts and boots into Monterey 12.6.7

Also I was not prompted by OCLP post-installer to enable AMFI. I was under the impression that the latest version re-enables SIP?

Can someone explain in detail what they did to update to latest version of Monterey while using OCLP?
 
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deeveedee

macrumors 65816
May 2, 2019
1,452
2,115
Peoria, IL United States
Can someone explain in detail what they did to update to latest version of Monterey while using OCLP?
I did not experience this with 12.6.7 -> 12.6.8, but I have experienced this with other upgrades. When I encountered this upgrade problem in the past, I performed the upgrade with a USB installer.

Create a USB installer for Monterey 12.6.8 (use OCLP to "Create macOS Installer" and then install 12.6.8 to the 12.6.7 volume. You will need to boot the USB installer with the Open Core EFI that you generate with OCLP (Build and Install Open Core). The macOS upgrade will be performed "in place" without losing your data. I always have a Time Machine backup before performing any upgrades and I would encourage you to have your preferred way to recover from a failed upgrade.

If you're really paranoid like I am, create a new APFS Volume, perform a clean installation of Monterey 12.6.8 to the new volume and migrate data/apps/settings from your 12.6.7 volume as the last step of your new 12.6.8 installation (before you apply OCLP post-install patches).
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
I did not experience this with 12.6.7 -> 12.6.8, but I have experienced this with other upgrades. When I encountered this upgrade problem in the past, I performed the upgrade with a USB installer.

Create a USB installer for Monterey 12.6.8 (use OCLP to "Create macOS Installer" and then install 12.6.8 to the 12.6.7 volume. You will need to boot the USB installer with the Open Core EFI that you generate with OCLP (Build and Install Open Core). The macOS upgrade will be performed "in place" without losing your data. I always have a Time Machine backup before performing any upgrades and I would encourage you to have your preferred way to recover from a failed upgrade.

If you're really paranoid like I am, create a new APFS Volume, perform a clean installation of Monterey 12.6.8 to the new volume and migrate data/apps/settings from your 12.6.7 volume as the last step of your new 12.6.8 installation (before you apply OCLP post-install patches).
Crap. Tried the update again before coming back here. It corrupted the OS so I have to do system restore. I'm trying to restore now but it's stuck at "Preparing to restore". I no longer have an OS but I have Time Machine backups saved to another internal drive. I also have the thumb drive I created with OCLP but it's not bootable. I thought it would be bootable but can only see it under Utilities in System Restore. Is it possible to just do a restore or do I need a bootable thumb drive?
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
@Dolphins1972 You have a Time Machine backup. One option would be to install 12.6.8 to a new APFS volume and migrated data/apps/settings from Time Machine.
The problem is I don't have a bootable OS anymore so I can't install anything. I'm going to purchase a thumb drive with Mojave installer. They sell them on Amazon. I need to roll back to Mojave so I can boot without OCLP. Then I can reinstall Monterey using OCLP. I don't know of any other options at this point?
 

Wickintime

macrumors member
Feb 27, 2018
83
27
Melbourne, Australia
A friend has just brought round her 2011 MBP as it had "stopped working". It would boot but no mouse action until I plugged a wired mouse. It has OCLP v6.4 and Monterey 12.6.7. The graphics were erratic and it was showing all the symptoms of needing Root Patching. When I try to Root patch in v6.4 it will not patch because. "Library validation is enabled". How can I change this?

I then uploaded OCLP 6.8. However, when I run the Root Patcher for 6.8 I get
tempImagesNU61J.png


I would like to upgrade the MBP to Ventura, but for now, I have run out of knowledge and have no idea how to progress.
Any guidance would be welcome!

Thanks
 
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deeveedee

macrumors 65816
May 2, 2019
1,452
2,115
Peoria, IL United States
The problem is I don't have a bootable OS anymore so I can't install anything. I'm going to purchase a thumb drive with Mojave installer. They sell them on Amazon. I need to roll back to Mojave so I can boot without OCLP. Then I can reinstall Monterey using OCLP. I don't know of any other options at this point?
I will need to add "keep a spare, bootable macOS USB installer" to my disaster preparedness list. My Mac has an SSD with enough room to keep multiple macOS volumes. If I screw up one volume (which has happened), I boot into another volume to recover. I always keep a bootable USB with my latest Open Core EFI (generated by OCLP "Build and Install OpenCore").

It's good to remember that OCLP is awesome and the Devs are incredible, but it's in a constant state of development and change, so it should always be treated as Beta software and deserves the precautions required for handling Beta software. That's not a criticism of OCLP or the Devs, it's just my recommendation and especially important when the Mac is your only Mac and/or your "production" Mac. If you want to be extra careful, it is always safest to install a new version of macOS to a new APFS Volume and to migrate data/apps/settings from your "production" volume (before applying OCLP post-install patches to the new Volume) while leaving the "production" volume untouched.
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
I will need to add "keep a spare, bootable macOS USB installer" to my disaster preparedness list. My Mac has an SSD with enough room to keep multiple macOS volumes. If I screw up one volume (which has happened), I boot into another volume to recover. I always keep a bootable USB with my latest Open Core EFI (generated by OCLP "Build and Install OpenCore").

It's good to remember that OCLP is awesome and the Devs are incredible, but it's in a constant state of development and change, so it should always be treated as Beta software and deserves the precautions required for handling Beta software. That's not a criticism of OCLP or the Devs, it's just my recommendation and especially important when the Mac is your only Mac and/or your "production" Mac. If you want to be extra careful, it is always safest to install a new version of macOS to a new APFS Volume and to migrate data/apps/settings from your "production" volume (before applying OCLP post-install patches to the new Volume) while leaving the "production" volume untouched.
That's what I thought I had done. I have the USB I made with OCLP but it doesn't finish booting. The progress bar stops about a 3rd of the way then reboots into recovery. So I'm left with time machine backups which for some reason gets stuck in "preparing" and never finishes. Oddly though, after waiting 6 hrs for restore to finish I can see in Disk Utilities that my SSD shows as Monterey 12.6.8 but it doesn't boot past the Apple logo screen. I'm assuming OpenCore EFI is corrupted or missing? I'm gonna have to start over with Mojave and load Monterey on another drive. Monterey USB should be here tomorrow. I'll post if I have any more problems.
Thanks for the help.
 
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Dolphins1972

macrumors regular
Oct 1, 2017
125
49
@Dolphins1972 Are you able to add -v to boot-args in your config.plist, so you can see a verbose boot log which might show where the boot process is getting stuck?
Can't get past Apple logo screen so no way to access config.plist. I can view recovery log. Unless you mean accessing it in Terminal in Recovery mode? Don't know how to do that, if that's what mean?
 

deeveedee

macrumors 65816
May 2, 2019
1,452
2,115
Peoria, IL United States
Can't get past Apple logo screen so no way to access config.plist. I can view recovery log. Unless you mean accessing it in Terminal in Recovery mode? Don't know how to do that, if that's what mean?
If you can launch Monterey Recovery and you know vi editor, you can try the steps below. I haven't done this myself, so you'll have to let me know if this works. Be very careful since you're operating as root.
  1. Boot with Open Core EFI and press space bar at Open Core boot menu to show auxiliary menu items
  2. Choose Monterey Recovery and allow Recovery mode to boot
  3. Open Terminal
  4. Enter command "diskutil list" to show a list like this
    Screenshot 2023-08-04 at 7.42.24 AM.png
  5. Identify your EFI partition (disk0s1 in my example in step 4)
  6. Enter the command "diskutil mount disk0s1" (replacing disk0s1 with the identifier you found in step 4
  7. Enter the command "cd /Volumes/EFI/EFI/OC"
  8. Enter the command "cp config.plist config-bak.plist" (to save a backup of your unmodified config.plist)
  9. Edit config.plist with vi editor (search for boot-arg and add -v to boot-arg list, save config.plist)
  10. After exiting vi (saving modified config.plist), enter command "cd /", then enter command "diskutil umount disk0s1" (replacing disk0s1 with the identifier you found in step 4
  11. Reboot
Be very careful in step 9 to edit only the boot-arg list. If you think you screwed up your config.plist, don't reboot from Recovery Mode. Instead, copy config-bak.plist to config.plist (command "cp config-bak.plist config.plist") and try editing config.plist again (try again BEFORE you reboot from Recovery Mode).
 
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Dolphins1972

macrumors regular
Oct 1, 2017
125
49
If you can launch Monterey Recovery and you know vi editor, you can try the steps below. I haven't done this myself, so you'll have to let me know if this works. Be very careful since you're operating as root.
  1. Boot with Open Core EFI and press space bar at Open Core boot menu to show auxiliary menu items
  2. Choose Monterey Recovery and allow Recovery mode to boot
  3. Open Terminal
  4. Enter command "diskutil list" to show a list like this
  5. Identify your EFI partition (disk0s1 in my example in step 4)
  6. Enter the command "diskutil mount disk0s1" (replacing disk0s1 with the identifier you found in step 4
  7. Enter the command "cd /Volumes/EFI/EFI/OC"
  8. Enter the command "cp config.plist config-bak.plist" (to save a backup of your unmodified config.plist)
  9. Edit config.plist with vi editor (search for boot-arg and add -v to boot-arg list, save config.plist)
  10. After exiting vi (saving modified config.plist), enter command "cd /", then enter command "diskutil umount disk0s1" (replacing disk0s1 with the identifier you found in step 4
  11. Reboot
Be very careful in step 9 to edit only the boot-arg list. If you think you screwed up your config.plist, don't reboot from Recovery Mode. Instead, copy config-bak.plist to config.plist (command "cp config-bak.plist config.plist") and try editing config.plist again (try again BEFORE you reboot from Recovery Mode).
Although I'd like to solve this and pass on my findings to the devs but I've been without an OS for several days and I needed access to my data ASAP. Not willing to dabble in places I'm unfamiliar with at this point. Many thanks for the info.
On a happy note, it's time for some install music:
Screen Shot 2023-08-04 at 1.16.15 PM.png
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
Hmmm... I think I found out why I was not able to boot into Opencore USB to recover Monterey. This did not happen the first time I used this flash drive. I tried wiping it and installing again and it was successful but it failed to load EFI on reboot. Just ordered a new thumb drive and will try again tomorrow. For now I'm up and running on Mojave
Screen Shot 2023-08-04 at 1.48.12 PM.png
 

Dolphins1972

macrumors regular
Oct 1, 2017
125
49
Ok, bought new thumb drive and tried again but OCLP is not creating the EFI Boot option. See the contents of my thumb drive with newly installed OCLP patcher 0.6.8 below.
Screen Shot 2023-08-05 at 6.45.19 PM.png
 
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