On a mid 2010 i7 iMac, going from 10.10.5 to 10.11 (with all peripherals disconnected).
I can't get El Capitán to finish the install--
Twice this has happened, with identical results: once on an internal volume and once on an external FW volume.
Short History:
All seems to be going well, the DL was uneventful as was most of the install. But then, during the second restart, the installer stalls (hangs?) with about 7 minutes (estimated) time remaining.
Two hours later, no progress or change.Â
I manually restarted, but that always reverts to the same previously stalled window.
From a different volume, I could see that System Preferences identified the startup disk with El Capitán on it, but I still can’t get the install to complete.
I tried repairing the El Capitán volume with Disk Warrior, but that did no good.
FWIW, I had/have no problems with Yosemite.
Clearly this is frustrating beyond measure. Sine 1983, this is the first OS I can't install.
What am I doing wrong?
