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macOS 10.15 Catalina on Unsupported Macs

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K two

K two

macrumors 68020
Dec 6, 2018
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North America
85iben said:
Hi there

Sorry I got kinda lost in this enormous post...
Here's my iMac details, running on mac OS High Sierra 10.13.6 (17G13035)

Will I get in some troubles (some apps not running? slow as a escargot? ...) if I try to update with Mojave patcher? Main reason why I want it is to get Messages in dark mode... Can't stand that white messaging mode anymore, while my FB Messenger & WhatsApp for Mac are in dark...

Big thanks!


iMac (21.5-inch, Mid 2011)
2.5 GHz Intel Core i5
12 GB 1333 MHz DDR3
AMD Radeon HD 6750M 512 MB
500 GB SATA Disk
Click to expand...

http://dosdude1.com/catalina/ known issues

AMD/ATI Radeon HD 5xxx and 6xxx series graphics acceleration: Currently, it is not possible to achieve full graphics acceleration under Catalina on any machines that use a Radeon HD 5xxx or 6xxx series GPU. If you have a machine with one of these GPUs installed, I'd advise upgrading it if possible (can be done in 2010/2011 iMacs, iMac11,x-12,x), disabling the dedicated GPU if using a 2011 15" or 17" MacBook Pro (MacBookPro8,2/8,3, instructions to do so can be found here), or not installing Catalina. Running Catalina without full graphics acceleration will result in extremely poor system performance.

Same holds true for Mojave.
 
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Ausdauersportler

Ausdauersportler

macrumors 603
Nov 25, 2019
5,007
5,826
85iben said:
Hi there

Sorry I got kinda lost in this enormous post...
Here's my iMac details, running on mac OS High Sierra 10.13.6 (17G13035)

Will I get in some troubles (some apps not running? slow as a escargot? ...) if I try to update with Mojave patcher? Main reason why I want it is to get Messages in dark mode... Can't stand that white messaging mode anymore, while my FB Messenger & WhatsApp for Mac are in dark...

Big thanks!


iMac (21.5-inch, Mid 2011)
2.5 GHz Intel Core i5
12 GB 1333 MHz DDR3
AMD Radeon HD 6750M 512 MB
500 GB SATA Disk
Click to expand...
The solution is near, just a few clicks away....you can get native metal support using another graphics card.
 
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hvds

hvds

macrumors 6502a
Sep 1, 2017
850
2,023
Switzerland
K two said:
Dot 6 beta 4 is out.
Click to expand...
On MBP5,2 beta 4 installed OTA and running fine, transparency is there.
(usual tools - CatalinaOTAswufix, OpenCore boot for 2nd OTA phase, 1.4.4 post-install patches, patch updater for NightShift)
 

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CharlieRuiz97

CharlieRuiz97

macrumors newbie
Sep 26, 2018
22
35
I have a question for all of you guys?... I wanna begin to learn swift to develop universal apps can I do it on Catalina or I need Big sur and beta xcode for that? (building Universal apps) cause my Mac is a 7,1 whitebook that doesn't run big sur yet so... Can I do swift development for universal apps on Catalina?... And another thing... At the beginning of the year I installed swift playgrounds to try learning swift but it didn't run the code and crashed, this is a problem because of the lack of metal compatible card on my Mac?
 
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K two

K two

macrumors 68020
Dec 6, 2018
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CharlieRuiz97 said:
I have a question for all of you guys?... I wanna begin to learn swift to develop universal apps can I do it on Catalina or I need Big sur and beta xcode for that? (building Universal apps) cause my Mac is a 7,1 whitebook that doesn't run big sur yet so... Can I do swift development for universal apps on Catalina?... And another thing... At the beginning of the year I installed swift playgrounds to try learning swift but it didn't run the code and crashed, this is a problem because of the lack of metal compatible card on my Mac?
Click to expand...

Maybe? Xcode 12 for macOS Universal Apps beta 2 (12A8161k)
 
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twinboys

macrumors newbie
Dec 22, 2013
19
17
twinboys said:
I apologize LuisN that I wasn't able to articulate clearer. (1) I put the Crucial SSD in an external case and plug it into the the USB connector. (2) I rebooted from the original HDD to make sure macOS can read the external drive prior to me reformatting it. (3) I then rebooted from the dosdude1 High Sierra USB drive and installed the macOS onto the external Crucial SSD. (4 ) Once done, I shut down and replaced the internal HDD with external SDD which now has a dosdude1 installed High Sierra OS. (5) When I rebooted, it was showing the "Flashing folder with Question mark".

I took your recommendation and purchase another Hard Drive Flex Cable. I'm scheduled to receive it this coming Friday and once putting everything back together, I'm hopefully for a successful macOS install on the SSD. I'll report back on my status. I want to thank you again for your patience in helping me.
[automerge]1593393622[/automerge]


I took your advice and installed High Sierra on the SSD but on the next reboot I recieved the "Flashing folder with Question mark" again. I took LuisN recommendation and purchase another HDD Flex Cable. I'll let you know how it turned out. Thanks
Click to expand...

LuisN and TimothyR734, after finally having time on my hands to replace the HDD Flex Cable, I wanted to touch base with you both to report that this solutioned worked. I was able to replace the cable, upgrade the HDD to SDD, and install macOS High Sierra without any issues. Once that was done, I moved on to installing macOS Catalina via DosDudes1 patch and that worked without a program. I would have placed bets that all the problems I had encountered wasn’t a result of a cable but it was. Thanks for all your help.
 
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trifero

trifero

macrumors 68030
May 21, 2009
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twinboys said:
LuisN and TimothyR734, after finally having time on my hands to replace the HDD Flex Cable, I wanted to touch base with you both to report that this solutioned worked. I was able to replace the cable, upgrade the HDD to SDD, and install macOS High Sierra without any issues. Once that was done, I moved on to installing macOS Catalina via DosDudes1 patch and that worked without a program. I would have placed bets that all the problems I had encountered wasn’t a result of a cable but it was. Thanks for all your help.
Click to expand...
Great!
 
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trifero

trifero

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koyado

macrumors newbie
Aug 9, 2012
11
9
Hi, installed done in MacBook Pro 5.5.
Any application to improve performance ?, There was one tweak app to reduce the graphic load of the system, but I do not remember what it was called.
 
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Larsvonhier

Larsvonhier

macrumors 68000
Aug 21, 2016
1,611
2,983
Germany, Black Forest
TimothyR734 said:
github.com

GitHub - minh-ton/Control-Center: A replica of the Big Sur Control Center for macOS 10.12 - 10.15.

A replica of the Big Sur Control Center for macOS 10.12 - 10.15. - minh-ton/Control-Center
github.com github.com
[automerge]1594612886[/automerge]
View attachment 933385 View attachment 933386
[automerge]1594612932[/automerge]
very good thank you Minh works good :)
Click to expand...
Looks really good, but I cannot get it to run: Gatekeeper or Xprotect prohibit execution... "it´s recommended to discard the app to trash" or so. I even tried to self-sign it on my machine, which works without complaint but it still throws the same message and does not start...
(10.15.5 build F101).
Any clue here - or does it have to be compiled for that build of Catalina?
 
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trifero

trifero

macrumors 68030
May 21, 2009
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Larsvonhier said:
Looks really good, but I cannot get it to run: Gatekeeper or Xprotect prohibit execution... "it´s recommended to discard the app to trash" or so. I even tried to self-sign it on my machine, which works without complaint but it still throws the same message and does not start...
(10.15.5 build F101).
Any clue here - or does it have to be compiled for that build of Catalina?
Click to expand...
Run in Terminal sudo spctl --master-disable
[automerge]1594717397[/automerge]
koyado said:
Hi, installed done in MacBook Pro 5.5.
Any application to improve performance ?, There was one tweak app to reduce the graphic load of the system, but I do not remember what it was called.
Click to expand...
Wow. In a 2009 mac. Does it run good?
 
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K two

K two

macrumors 68020
Dec 6, 2018
2,311
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North America
twinboys said:
LuisN and TimothyR734, after finally having time on my hands to replace the HDD Flex Cable, I wanted to touch base with you both to report that this solutioned worked. I was able to replace the cable, upgrade the HDD to SDD, and install macOS High Sierra without any issues. Once that was done, I moved on to installing macOS Catalina via DosDudes1 patch and that worked without a program. I would have placed bets that all the problems I had encountered wasn’t a result of a cable but it was. Thanks for all your help.
Click to expand...

Since the source of the cable failure (vibration from the HDD) has been removed it is unlikely this cable failure will re-occur, SSDs do not vibrate. A strip of smooth electrical tape where the SATA imbilical meets the MB housing is good insurance in any event especially for those with the HDD remaining.
 
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twinboys

macrumors newbie
Dec 22, 2013
19
17
K two said:
Since the source of the cable failure (vibration from the HDD) has been removed it is unlikely this cable failure will re-occur, SSDs do not vibrate. A strip of smooth electrical tape where the SATA imbilical meets the MB housing is good insurance in any event especially for those with the HDD remaining.
Click to expand...

Thanks K two, i will do this.
 
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A

Alex-Microsmeta

macrumors 6502
Jul 14, 2018
376
630
Rome
Flacko said:
I would give Onyx maintenance a try.
Click to expand...

@jackluke I have workarounded it with this simple script
Flacko said:
I would give Onyx maintenance a try.
Click to expand...

@jackluke I have found this workaround that works. I launch a .command automatically after boot:

for i in {1..5}
do
open -g -a /Applications/Google\ Chrome.app
done

Chrome sings "dong" then opens. Sometimes it returns:

LSOpenURLsWithRole() failed for the application /Applications/Google Chrome.app with error -10810.

but opens without the need of clicking 20 times, and when opened the first time it continues to work until next reboot, also if I close it, not only when minimized :)
 
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