I downloaded the OS HS from apple store and during installation I got stuck on the following error: "The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged"
I've read a lot but so far haven't been able to solve the problem. I also found out that HS has issues supporting fusion drive.
Info: - iMac 12,1 21.5 mid 2011 - In 2015 I replaced the original HDD with a DIY fusion drive (120GB ssd + 4TB HDD) - using OS 10.12.6 - Sierra - using apple trackpad + bluetooth keyboard - I have a TM Backup but it's months old - I have a bootable usb with El Captain - Don't have access to another mac - Only have a windows laptop but no adm rights (work laptop)
diskutil shows this:
My goal is to come back to Sierra, so I can perform a new TM Backup. I understand that since the installation didn't go thru, it shouldn't be that difficult, am I right? **
What I've tried so far:
Any help will be greatly appreciated. Thanks in advance.