![]() It seems it downloads the actual OS from within the installer app and thus I am unable to make a proper fresh OS install USB drive. The install app finishes downloading and ends up at 22.8 MB, obviously not the full OS. ![]() I'm on macOS High Sierra 10.13.6 with a MacBook Pro Retina 13-inch Mid 2014.Īs per How to create a bootable installer for macOS - Apple Support and several online tutorials I've downloaded the Install macOS Mojave.app from the Mac App Store. Hi.īeen scratching my head bald trying to make this work. Want to do a fresh install of OS, my Install macOS Mojave.app is only 22.8 MB and I can't make the USB. ![]() I am fully backed up as far as my HDD goes, not worried about Apps I can reinstall, so are there any other options? Is there a way to check the USB installer to make sure its exactly right? Does using the BT keyboard and mouse have any effect on things when you are running from terminal? but then a screen pops up with a few choices including Restore from Time Machine, Reinstall MacOS, Get Help Online, and Disk Utility. , but when I went to the selection where you have options to reinstall the OS, a popup appeared saying it was going to reinstall Catalina. So I tried doing the Internet Recovery Boot holding CMD+Option+R and the process seems to start, I got to the spinning globe. What would cause the installer App to fail? If you wish to continue type (Y) then press return: yĮrasing disk: 0%. To continue we need to erase the volume at /Volumes/USB. I have tried various methods, including creating a USB installer stick and in that case, it seemed like its running fine. ![]() REINSTALL MOJAVE on iMac currently running Catalina My 2019 iMac27 Retina 250 SSD was shipped with Mojave v.10.12.4 and I really want to go back to that macOS and not use Catalina. Even If I could find a way of showing the Mojave Installer there, wouldn’t it install it on my iMac hard drive? (4) If I double-click the Mojave Installer icon on my screen, it first says it’s verifying and then informs me that this version of the Installer is too old to be opened.Ĭan anyone guide me in the right direction? (3) In Startup Disk in System Preferences only my iMac hard drive is shown. But when I click Install OS, it wants to reinstall Catalina on my iMac with no way of choosing a different OS or destination. This takes me straight to the Recovery screen and this time the cursor is not frozen. (2) Trying a different tack, I boot up holding down Command + R. I can navigate between the four options using the space bar but cannot click the Continue button as the cursor is still frozen. If I hit the space bar this gives way to the macOS Recovery screen. (1) If I turn on the computer while holding down the Option key, I first get what looks like a line drawing of a mouse alternating with a line drawing of something else, and the cursor is frozen in the top left-hand corner of the screen. Its icon on the screen now also shows as My Book Mojave. And I have erased the content of the WD and renamed it My Book Mojave. ![]() It is on a flash drive which has changed its name to Install macOS Mojave. I have successfully created a bootable Mojave installer. While retaining Catalina on the iMac, I want to install Mojave on the WD so that I can use software which is not Catalina-compatible. I use the G-Drive in conjunction with Time Machine so everything on the iMac is safely backed up. and two external hard drives: a G-Drive mobile and a WD My Book. I have: an iMac running Catalina 10.15.2. ![]()
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