Hi, I have a 2011 27" iMac which has EL Capitan on it. It has a 1Tb drive which I had re-partitioned to test High Sierra in a 150Gb partition leaving 850Gb for EL Capitan.
Now if all goes well I intend change the partitions to around a 500Gb each to enable me to keep both operating systems intact.
Will I have to completely delete the 150Gb partition before I do the resize. I can reduce the 850Gb to 500Gb by dragging which gives me 500Gb, 350 Gb unallocated and 150Gb. Is there a way to merge the 350+150 ?
Also should there any speed penalty in booting from one partition or the other or does it not matter.
My plan is to install a fresh copy of High Sierra and then to migrate my system from my TimeMachine EL Capitan backup located on an external drive. End result is 2 operation system with all my data on 2 equal partitions, hopefully !!!
Now if all goes well I intend change the partitions to around a 500Gb each to enable me to keep both operating systems intact.
Will I have to completely delete the 150Gb partition before I do the resize. I can reduce the 850Gb to 500Gb by dragging which gives me 500Gb, 350 Gb unallocated and 150Gb. Is there a way to merge the 350+150 ?
Also should there any speed penalty in booting from one partition or the other or does it not matter.
My plan is to install a fresh copy of High Sierra and then to migrate my system from my TimeMachine EL Capitan backup located on an external drive. End result is 2 operation system with all my data on 2 equal partitions, hopefully !!!
