Find what's preventing Mac from sleeping
If Mac is failing to go to sleep or is waking up unexpectedly, you can run pmset -g log | egrep '\b(Sleep|Wake|Start)\s{2,}' in terminal to inspect last sleep/wake events
If Mac is failing to go to sleep or is waking up unexpectedly, you can run pmset -g log | egrep '\b(Sleep|Wake|Start)\s{2,}' in terminal to inspect last sleep/wake events
Installing Mac OS X on iMac's blank formatted hard drive. Installation runs for 5-10 minutes and then fails with following error:
An error occurred while preparing the installation. Try running this application again.
Tried installing OS X El Capitan (10.11) and OS X Sierra (10.12) - the same error occurs in both cases.
Read more: Installing Mac OS - An error occurred while preparing the installation...
L2TP/IPsec VPN successfully connects to a remote VPN server, but Mac OS still has no access to the remote network.
To resolve the issue I had to select "Send all traffic over VPN connection" in VPN network Advanced settings.
Read more: Mac OS L2TP/IPsec VPN connects but no access to remote network
These instructions shows how to merge an original iMac Fusion drive that for some (installing Windows, messing with Disk Utility) was split into separate SSD and HDD drives.
Warning: performing below steps will irrecoverably wipe both SSD and HDD drives. Make sure you have all your data backed up.
Read more: Merge split iMac Fusion drive (SSD + HDD) back into one