I know I’ve been changing OS’s a lot, but once I realized I could still use Altstore with Mojave, I wanted to downgrade because it was the last OS that only required 2gb of RAM to run, and therefore, in my experience, has lead to SIGNIFICANT increases in process easing power. The only reason I updated from Mojave was to try out Big Sur. And now I’m back, if that gives you any indication of my faith in Mojave. It’s like the “ Windows XP” of Macs, IMO.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Downgrading from Big Sur to Mojave
- Thread starter davemp88
- Start date
- Sort by reaction score
Yeah i spent a month on big sur and another few weeks on cat. Back to Mojave again. It's just so much lighter and runs faster (with less issues)
What's unfortunate is that I actually am running into quite a bit of compatibility issues with software I want to install on Mojave. But then when I reinstall it, it seems to be fine. I think eventually tho, For things like Altstore and what not, I'm gonna have to upgrade. Would you say the graphics are better with Big Sur than with Mojave? I was reading online and a lot of people were actually saying that the more RAM needed to operate is actually better because it forces the computer to use all the RAM allotted, and for people like me who've upgraded to 16gb of RAM, which is MORE than capable of running Big Sur, now that there's a stable 11.4 release, I think I'll switch back.....Unless.....If I'm running Mojave right now, how can I partition my main SSD Drive, so that I can install Big Sur (Through either Patched Sur or OpenCore Legacy Patcher as my MBP does not natively support Big Sur) on the new partition? and if I use OpenCore, which I had planned on, I'll leave show picker mode on, so each time I could select to boot either Mojave or Big Sur? or will that not work because one is macOS Extended Journal and one is APFS?
if you plan to run mojave and BS at the same time, make sure you partition and not simply create a new APFS container. The APFS container in BS is different so you may run into issues.
And regardless of what you do, when you boot into Mojave, it will see the BS APFS container and complain every time on startup.
I actually had to switch back to 11.4 since my keychain is broken on mojave (it won't sync no matter what i do). It must have messed up my account when i went to BS
EDIT: I dont know what happened but signing into my old install of high sierra and then going back to mojave got everything going again. Im staying on mojave for now!
really liking the stability
Last edited:
I have two Mojave Virtual Machines on my Windows desktop and will need a Big Sur virtual machine at the end of the year for TurboTax. Of course I might have an M1X system by then. All of my macOS installations are Mojave except for my Late 2009 iMac 27 which only goes to High Sierra and an old system running Catalina for testing purposes.
When I first opened TurboTax this year (running Mojave), it advised me I would need a minimum of Catalina for next year, not Big Sur. I've always run TT in a VM, anyway, so I've created a Catalina VM ready for next year.
You are correct but I don't plan to use Catalina in my home production environment. Going straight to Big Sur has the advantage of not having to move up the following year or the year after that. I will be there anyways with whatever I get that has the M1X in it.