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If you buy a used Mac that comes with fresh OS are you still wiping it?
- Thread starter mrk123
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Personally, any used electronics I buy get a factory reset and complete fresh install, as close to new as I can get it. I like to know that whatever potentially will go wrong is my fault and not due to some quirky selection someone made when installing the OS, along with the standard security concerns.
i don't think a 2012 Mac would support Sonoma without OCLP?
I would create a macOS 10.15 Catalina USB installer, boot that, erase the internal disk, and install. You may also be able to do that from Recovery Mode. (I am guessing that for your Mac, Catalina is the most recent supported version of macOS).
Unless you consider yourself knowledgeable about macOS, do not get involved with a more recent unsupported version of macOS using OCLP.
Unless you consider yourself knowledgeable about macOS, do not get involved with a more recent unsupported version of macOS using OCLP.
Yes this mac has the open core patcher, but the seller put it on, i have a limited understanding of how it works, but could not iuse sonoma in the end due to certain 2020 programs not installing.. So I am now using Cataline, shame as Sonma looked pretty fly.
You didn't tell us WHAT Mac you have and what the year of manufacture was.
Considering it came with 2 OS's -- which suggests to me that the internal drive is partitioned -- then, YES, I'd wipe it and start over.
Open Core?
Unless you know how to use and MAINTAIN that, you're playing with fire.
Put a SUPPORTED version of the OS onto it, and use that.
EXCEPTION:
You could use one of dosdude1's "Mojave" or "Catalina" patchers, which I reckon are more stable than OCLP.
Considering it came with 2 OS's -- which suggests to me that the internal drive is partitioned -- then, YES, I'd wipe it and start over.
Open Core?
Unless you know how to use and MAINTAIN that, you're playing with fire.
Put a SUPPORTED version of the OS onto it, and use that.
EXCEPTION:
You could use one of dosdude1's "Mojave" or "Catalina" patchers, which I reckon are more stable than OCLP.
I have put a load of software on my catalina os now, not sure i want to go through all that again, was stressful.
Can i just get rid of the Sonoma easily? Or how hard can it be to update the opencore?
When it works, it is simple.
When it goes wrong - you have to understand its limitations and how it works.
Post the output of the command
diskutil list and we can try and help. The tricky part is that OCLP will have modified the EFI partition. But, as many of us have said, better to erase the whole disk and start again with a used computer in an unknown (mixed OS) state.
Wasn't sure what you meant with command diskutil. Here is a screen grab?
Attachments
macbookpro@MacBook-Pro-Catalina ~ % diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 1000.0 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +1000.0 GB disk1
Physical Store disk0s2
1: APFS Volume Sonoma - Data 30.0 GB disk1s1
2: APFS Volume Catalina - Data 65.3 GB disk1s2
3: APFS Volume Preboot 5.5 GB disk1s3
4: APFS Volume Recovery 1.8 GB disk1s4
5: APFS Volume 10.6 GB disk1s5
6: APFS Volume Update 507.9 KB disk1s6
7: APFS Volume VM 6.4 GB disk1s7
8: APFS Volume Catalina 11.2 GB disk1s8
Make sure you have a backup of whatever is valuable - in case of disaster.
Then:
1: APFS Volume Sonoma - Data 30.0 GB disk1s1 is the Sonoma read/write disk and can be deleted.
5: APFS Volume 10.6 GB disk1s5 is probably (the size is about right) the Sonoma read only volume - it can be deleted too.
(by deleted, I mean go into Disk Utility, select the volume and use the minus symbol to remove).
That gets rid of Sonoma and recovers 40GB space.
But you will still have 1) OCLP modifications to the EFI partition (1: EFI EFI 209.7 MB disk0s1) and 2) Recovery and other small volumes (used by both Sonoma and Catalina) which have modifications for Sonoma. So you will not have a clean Catalina.
As I and others have said, you should erase the whole disk and do a clean install of Catalina - from a USB boot disk or Internet Recovery. Anything else and you will never quite know the cause any future issues.
Then:
1: APFS Volume Sonoma - Data 30.0 GB disk1s1 is the Sonoma read/write disk and can be deleted.
5: APFS Volume 10.6 GB disk1s5 is probably (the size is about right) the Sonoma read only volume - it can be deleted too.
(by deleted, I mean go into Disk Utility, select the volume and use the minus symbol to remove).
That gets rid of Sonoma and recovers 40GB space.
But you will still have 1) OCLP modifications to the EFI partition (1: EFI EFI 209.7 MB disk0s1) and 2) Recovery and other small volumes (used by both Sonoma and Catalina) which have modifications for Sonoma. So you will not have a clean Catalina.
As I and others have said, you should erase the whole disk and do a clean install of Catalina - from a USB boot disk or Internet Recovery. Anything else and you will never quite know the cause any future issues.