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macOS 11 Big Sur on Unsupported Macs Thread

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libneko

libneko

macrumors member
Jun 22, 2020
62
165
Siberia
About HD4000: there are HD4000 bundles in the current Big Sur beta, so, any hope for Mac Mini Late 2012?
[automerge]1592870200[/automerge]
1592870190099.png


Provided by friend
 
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toru173

macrumors 6502
Apr 5, 2007
332
154
ASentientBot said:
Edit: and they changed (disabled?) the kextcache command, and prevented chowning something to root. This is such a nuisance.
Click to expand...

I remember reading about kmutil as a replacement for kextcache, possibly in the known issues page. I'm still installing so don't have a man entry for it to investigate.

I am exploring the installer now. It looks like the actual install file is in /Volumes/Shared\ Support/com_apple_MobileAsset_MacSoftwareUpdate/0dc2cd535db0da2a9f559215671686ea4c055394.zip, which is a modified .ipa file. I'm trying to extract and install it manually now

Edit: Also, it needs over 50 gigs to do a clean install. I'm assuming it extracts the .zip to a temp location (~10gb), builds an installer package from the pbzx compressed payload (~10gb) then actually executes the staged installer (~10gb), which puts the files on disk (~20gb). So at the moment it looks like a hybrid macOS/iOS installer. The boot process for basesystem.dmg is completely different too - they've hardened and signed rc.cdrom, and it no longer creates ramdisks
 
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M

Macbookprodude

Suspended
Jan 1, 2018
3,306
898
libneko said:
About HD4000: there are HD4000 bundles in the current Big Sur beta, so, any hope for Mac Mini Late 2012?
[automerge]1592870200[/automerge]
View attachment 926219

Provided by friend
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Something else is stopping it from working - check the plist I’d supported machines.
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PixelmonGalaxy said:
macOS 11.0 beta has acceleration on Mid 2012 13" Macbook Pro, only thing not working is wifi (should be a simple fix) View attachment 926227
Click to expand...

so does it work on non-retina 2012 ?
 
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Darkdes

macrumors member
Jun 22, 2020
35
39
Can anyone make a guide on how to get it installed? I was going to install it in a separate partition but can not work out how I am supposed to install it. I also have not got a way to obtain the big sur installer so if somebody could provide it that would be great
 
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Darkdes

macrumors member
Jun 22, 2020
35
39
I can't seem to obtain the big sur installer in any way. I do not have any supported macs so I can't use them if someone could upload it to one drive that would be great
[automerge]1592872430[/automerge]
Does anyone know of a location to download big sur
 
M

Macbookprodude

Suspended
Jan 1, 2018
3,306
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Darkdes said:
I can't seem to obtain the big sur installer in any way. I do not have any supported macs so I can't use them if someone could upload it to one drive that would be great
[automerge]1592872430[/automerge]
Does anyone know of a location to download big sur
Click to expand...

probably the developer website.. or torrent
 
macrumor2018

macrumor2018

macrumors member
Dec 19, 2018
63
43
Might the use of LPDDR3 RAM in iMac14,4 (Mid 2014) but not iMac14,1 (Late 2013) explain why the latter won't be supported by Big Sur?
 
Q

quaccOS

macrumors regular
Apr 19, 2020
126
208
ASentientBot said:
I created a basic patch which seems to get a copy of the OS installed.

My steps (briefly) were:
- Disable Library Validation and SIP
- launchctl setenv DYLD_INSERT_LIBRARIES $PWD/Hax.dylib
- Open and click through the installer app

This is all that's necessary for an "install to this machine" outcome. However, it currently does not boot... will report back if I figure anything out.

For anyone else who only has an unsupported machine and wants to test, here are the files! There are definitely alternatives like using OpenCore, cloning from a supported machine, etc. But thought I'd share this anyways.
Click to expand...
ASentientBot said:
There is no AVX requirement!!!

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.
Click to expand...
PixelmonGalaxy said:
macOS 11.0 beta has acceleration on Mid 2012 13" Macbook Pro, only thing not working is wifi (should be a simple fix)
Click to expand...
I'm sure this is the Big Sur Beta…btw I love the name, "Big Sur".
ASentientBot said:
Click to expand...
Big Sur Package.png I'd like to install to a new internal partition on my machine, or create a bootable installer on an external drive partition. I only have a single machine, but I'm still tempted to test Big Sur…it looks amazing.

People will probably hate the iOS-look off it, but aesthetically it looks amazing. The detail in each icon, fonts, spacing, geometry. They're really small things that make it feel special. I know it's all marketing and branding, but it makes for that experience…
 
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Darkdes

macrumors member
Jun 22, 2020
35
39
I already found one! my friend started the big sur app install and is going to upload to one drive for me
 
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