Hello to all,
iMac 13,2 (2012 - Metal capable)
Updated OTA to 15.3 RC from 15.3 beta 3 after reverting OCLP 2.2 patches ( patches prevent any updates from downloading via OTA on said machine).
See post# 2119 page# 85 for steps usually taken to update OTA on both iMac 13,2 and MacBook Pro 5,2. (Latter is a 2009 and Not Metal capable).
While OTA update appeared to complete, upon last reboot during installation process, iMac went into boot loop. I was forced to shut down via power button, then reboot into recovery partition. I was able to use recovery’s OS system reinstall function to install 15.3 beta 3 version of Sequoia OTA, then, without patching, initiated OTA update to 15.3 RC. This time installation completed, and patching with OCLP 2.2 went without untoward “sequelae”. Metal Lib library downloaded mid-patching process, as designed; the Metal lib descriptive matched 24D60 designation. Note, computers are connected to Ethernet while updating OS to allow Metal Lib and KDK downloads initiated by OCLP.
WiFi, Bluetooth, Networking, Hand off, Air Drop and continuity features work without noticeable problems.
MacBook Pro 5,2 2009 - listed as the process may apply to other not-metal capable computers.
Updated OTA to 15.3. RC from 15.3 beat3 without issues; patching process was uneventful, however, OCLP mediated automatic KDK download would not complete; the download window showed no progress. Had to download KDK from Apple developer’s website and install it manually, then initiate successful patching.
Observations:
Grey Screen- appears for brief moment on iMac, when installing or upgrading OS, before showing wall paper or desktop background. It does not occur when rebooting or waking up from sleep. MacBook Pro 5,2 shows grey screen for about 15 to 20 seconds, post OS installation, before standard desktop of wall paper appears. It does not appear when waking up from sleep or rebooting.
Sluggishness after using OCLP to install OS: as reported by others, there is a lot of background activity that needs to be completed when unsupported machines boot into latest OS.
A good way to monitor what is happening in the background is to have Activity Monitor (located in utilities folder) run in the background (probably familiar to most already, but just in case). Start Activity Monitor app. before updating OS; it will relaunch automatically once desktop is reached after OS installation. Make sure that the “monitoring scope” is set for “All Processes” and not just “My Processes” ( go to “View” in application’s menu bar, and select “All Processes” from dropdown menu.
Then, look at “% CPU” column in application window, and note which processes are taxing CPU; medianalysisd, photanalysisd, crashreporter and tailspin are some of the applications that often take high percentage of the CPU. Those processes can be selected (individually) and stopped, by clicking on the name of process, to highlight it, then clicking button marked by a circle with an X symbol in it; the button is located just above the “%CPU” column heading.
The processes listed above can be “deleted” with impunity. If the process restarts, repeat above steps to inactivate it again. There are other rogue activities that can be discontinued in similar manner. Doing this “cleanup” can substantially reduce CPU lug and decrease time for the computer to return to “idle”.
Note also the box, just below “%CPU” column; it shows percentage of CPU that is being utilized. If “idle” percentage is 0, computer will be sluggish until background activity completes, or given process is forced to discontinue (see above).
When no maintenance activity or active applications are consuming CPU, iMac 13,2 idles at between 98 to > 99%. This denotes that 98 to > 99% of CPU “power” is available for use. MacBook Pro 5,2 idles (minimum CPU activity) at 96 to > 97%.
I am sure most are already aware of Activity Monitor’s function.
Some Application compatibility data:
iMac 13,2 under Sequoia 15.3 RC can utilize at speed:
LibreOffice (need to download JDK for data base functions), GIMP (version 3.0), Blender (up to Version 3.6.9), iWork, Keynote, Numbers (latest versions), and applications usually bundled with system when OS is installed.
There are other compatible applications, but those specifically listed I actually tested, and are open source/free (for most personal use scenarios(?)). [Disclaimer: I have no direct connection, in any way, with developers of any of the listed applications, I am an end user]. Downloading alternate browser, to supplement Safari, is another good preemptive measure to guard against possible incompatibility.
Multiple Mac OS systems on same drive (internal or external) on one computer; see Post #2195 on Page# 88 for details.
I have not encountered any discernible problems running multiple Mac OS variants on same machine, and iCloud data syncs without problems, albeit all instances connect to same Apple account, whether utilizing Catalina, Sonoma or Sequoia variants.
Another great feat by the developers to “purvey” newest Mac OS for the unsupported machines.
Hope some of the above data may be of help.
iMac 13,2 (2012 - Metal capable)
Updated OTA to 15.3 RC from 15.3 beta 3 after reverting OCLP 2.2 patches ( patches prevent any updates from downloading via OTA on said machine).
See post# 2119 page# 85 for steps usually taken to update OTA on both iMac 13,2 and MacBook Pro 5,2. (Latter is a 2009 and Not Metal capable).
While OTA update appeared to complete, upon last reboot during installation process, iMac went into boot loop. I was forced to shut down via power button, then reboot into recovery partition. I was able to use recovery’s OS system reinstall function to install 15.3 beta 3 version of Sequoia OTA, then, without patching, initiated OTA update to 15.3 RC. This time installation completed, and patching with OCLP 2.2 went without untoward “sequelae”. Metal Lib library downloaded mid-patching process, as designed; the Metal lib descriptive matched 24D60 designation. Note, computers are connected to Ethernet while updating OS to allow Metal Lib and KDK downloads initiated by OCLP.
WiFi, Bluetooth, Networking, Hand off, Air Drop and continuity features work without noticeable problems.
MacBook Pro 5,2 2009 - listed as the process may apply to other not-metal capable computers.
Updated OTA to 15.3. RC from 15.3 beat3 without issues; patching process was uneventful, however, OCLP mediated automatic KDK download would not complete; the download window showed no progress. Had to download KDK from Apple developer’s website and install it manually, then initiate successful patching.
Observations:
Grey Screen- appears for brief moment on iMac, when installing or upgrading OS, before showing wall paper or desktop background. It does not occur when rebooting or waking up from sleep. MacBook Pro 5,2 shows grey screen for about 15 to 20 seconds, post OS installation, before standard desktop of wall paper appears. It does not appear when waking up from sleep or rebooting.
Sluggishness after using OCLP to install OS: as reported by others, there is a lot of background activity that needs to be completed when unsupported machines boot into latest OS.
A good way to monitor what is happening in the background is to have Activity Monitor (located in utilities folder) run in the background (probably familiar to most already, but just in case). Start Activity Monitor app. before updating OS; it will relaunch automatically once desktop is reached after OS installation. Make sure that the “monitoring scope” is set for “All Processes” and not just “My Processes” ( go to “View” in application’s menu bar, and select “All Processes” from dropdown menu.
Then, look at “% CPU” column in application window, and note which processes are taxing CPU; medianalysisd, photanalysisd, crashreporter and tailspin are some of the applications that often take high percentage of the CPU. Those processes can be selected (individually) and stopped, by clicking on the name of process, to highlight it, then clicking button marked by a circle with an X symbol in it; the button is located just above the “%CPU” column heading.
The processes listed above can be “deleted” with impunity. If the process restarts, repeat above steps to inactivate it again. There are other rogue activities that can be discontinued in similar manner. Doing this “cleanup” can substantially reduce CPU lug and decrease time for the computer to return to “idle”.
Note also the box, just below “%CPU” column; it shows percentage of CPU that is being utilized. If “idle” percentage is 0, computer will be sluggish until background activity completes, or given process is forced to discontinue (see above).
When no maintenance activity or active applications are consuming CPU, iMac 13,2 idles at between 98 to > 99%. This denotes that 98 to > 99% of CPU “power” is available for use. MacBook Pro 5,2 idles (minimum CPU activity) at 96 to > 97%.
I am sure most are already aware of Activity Monitor’s function.
Some Application compatibility data:
iMac 13,2 under Sequoia 15.3 RC can utilize at speed:
LibreOffice (need to download JDK for data base functions), GIMP (version 3.0), Blender (up to Version 3.6.9), iWork, Keynote, Numbers (latest versions), and applications usually bundled with system when OS is installed.
There are other compatible applications, but those specifically listed I actually tested, and are open source/free (for most personal use scenarios(?)). [Disclaimer: I have no direct connection, in any way, with developers of any of the listed applications, I am an end user]. Downloading alternate browser, to supplement Safari, is another good preemptive measure to guard against possible incompatibility.
Multiple Mac OS systems on same drive (internal or external) on one computer; see Post #2195 on Page# 88 for details.
I have not encountered any discernible problems running multiple Mac OS variants on same machine, and iCloud data syncs without problems, albeit all instances connect to same Apple account, whether utilizing Catalina, Sonoma or Sequoia variants.
Another great feat by the developers to “purvey” newest Mac OS for the unsupported machines.
Hope some of the above data may be of help.
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