clean install using Option-Cmd-R

[mattburley7]

can anyone confirm that this option now gives a clean install copy of macos mojave?

 

[dan9700]

Cant do it won't work no way to do clean install tried everything

 

[mattburley7]

anyone else try this and it worked?

 

[Porkchop Sandwich]

I un-enrolled my 2017 mbp from the beta program, restarted holding comm & r (no '-'), wiped my drive, and installed the final release. Took about 15/20min. I'm now presented with a fresh copy of Mojave. ..just fyi

 

[mattburley7]

i am on high sierra. if i do option-cmd-r will it give me mojave and option to do a clean install?

 

[dan9700]

i am on high sierra. if i do option-cmd-r will it give me mojave and option to do a clean install?

No

 

[mattburley7]

https://wccftech.com/clean-install-macos-mojave-ota/

this method is suppose to give a clean install?

 

[Birkan]

Option-CMD-R should install the latest available OS according to Apple documents. You can try it without messing up your original partition. Just press the Option-CMD-R buttons and let it load the latest OS. If you see Mojave installer it is good and you can wipe and install from there, otherwise, you might need to wait a few days. https://support.apple.com/en-us/HT204904

 

[richard69]

I did a clean install on my mBP TB. Just created a usb install media restart, hold option key, and choose the install media. Format the SSD, done. Worked like a charm .

 

[dan9700]

Mine wont let me
[doublepost=1537817931][/doublepost]It wont let me install from usb, keeps skiping it and going to globe and installing from server back to high sierra

 

[fate0311]

Why the need for a clean install?

 

[TokMok3]

can anyone confirm that this option now gives a clean install copy of macos mojave?

Yes sir! it works... I just installed in my MacBook Pro 15 2015 and very impressed with the beauty and performance of this machine with Mojave.
[doublepost=1537818476][/doublepost]

anyone else try this and it worked?

Yes sir, it works!!!

 

[dan9700]

Why on 2018 it says security cant install from usb drive

 

[richard69]

Mine wont let me
[doublepost=1537817931][/doublepost]It wont let me install from usb, keeps skiping it and going to globe and installing from server back to high sierra

Follow the steps in this video

https://9to5mac.com/2018/06/18/how-to-create-a-bootable-macos-mojave-10-14-usb-install-drive-video/
[doublepost=1537819118][/doublepost]

Why on 2018 it says security cant install from usb drive

You need to hold CMD + R and change the settings just to install, after you can turn it on again.

 

[TokMok3]

Why on 2018 it says security cant install from usb drive

I think is related to the T2 security chip on 2018 MacBook Pro. I think you have to disable some settings before doing a usb clean install.

 

[dan9700]

Follow the steps in this video

https://9to5mac.com/2018/06/18/how-to-create-a-bootable-macos-mojave-10-14-usb-install-drive-video/
[doublepost=1537819118][/doublepost]
You need to hold CMD + R and change the settings just to install, after you can turn it on again.

Thank you what setting do you change arghhh this is a nightmare im now installing high sierra again and just upgrade i just got new mac so wanted it to start with 10.14 from scratch but the t2 quick wont do it like the old days

 

[TokMok3]

Thank you what setting do you change arghhh this is a nightmare im now installing high sierra again and just upgrade i just got new mac so wanted it to start with 10.14 from scratch but the t2 quick wont do it like the old days

Sooner or later you will have to install Mojave, why not to start now.

 

[raab]

Sooner or later you will have to install Mojave, why not to start now.

He wants to fresh install Mojave instead of upgrading from High Sierra, but the T2 chip is preventing him from doing so