Installing El Capiton on an old Mac Book Pro today, I received the error:
- Reinstall El Capitan Without Losing Data
- Reinstall El Capitan Without Apple Id
- Reinstall El Capitan On Imac
Reinstall El Capitan Without Losing Data
OS X could not be installed on your computer
Aug 23, 2021 Reinstall El Capitan Without Losing Data Reinstall El Capitan On Imac I might ask if anyone knows how I can run the installer manually - from the command line I can cd to /Volumes and see my main hard drive and the downloaded dmg file 'Install OS X El Capitan'. Download: OS X El Capitan This downloads as a disk image named InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder.
No packages were eligible for install. Contact the software manufacturer for assistance.
Quit the installer to restart your computer and try again.
I checked Apple’s support Matrix (it is a very old macbook pro) at https://support.apple.com/kb/SP728?locale=en_GB and it was listed as supported.
After lots of Googling and investigation, I discovered that the date and time were not set to current, the macbook thought it was year 2000.
You can easily reset the time and date by following the steps below:
- Click Utilities on the menu bar
- Select Terminal
- Type date
- Confirm the date is wrong
- Type date 062112422016 (example: June 21st 12:42 2016)
- Exit terminal
- Click Restart
Reinstall El Capitan Without Apple Id
Once the Date and time are configured you will be able to install OS X.
Reinstall El Capitan On Imac
Easy fix, for a ridiculous error!