I have a sickly iMac, whose gpu (the venerable HD4670 on a late 2009 21.5") crapped out the other day. Another iMac is on the way and the idea is to migrate data etc from the now donor iMac. It was running Mavericks and since new iMacs are shipped with El Capitan, I decided to update the donor machine to El Capitan controlling via Remote Screen Sharing to keep things simple.
Big mistake.
I had forgotten about SIP. For some reason, El Capitan had decided to uncheck all the remote login and file sharing preferences. The iMac no longer shows up on the network but can be scanned by Apple Remote Desktop. I can see via Target Disk mode that the update seems to have completed but without access to the booted system, it is hard to tell if all has gone well.
I have tried to kickstart the sharing by first trying to ssh into the iMac in order to run a script to re-enable sharing. This I tried by first booting the iMac into single user mode and typing
mount -uw /
launchctl load -w /System/Library/LaunchDaemons/ssh.plist
reboot
But no go. SIP won't let anything in /System be written over. I even tried copying ssh.plist over to /Library and launching it from there. Doesn't seem to work. SSH still reports connection refused.
Trying to launch a Terminal from Recovery Mode is a non-starter without a screen so is there any other way of killing SIP so that I can ssh in?
Big mistake.
I had forgotten about SIP. For some reason, El Capitan had decided to uncheck all the remote login and file sharing preferences. The iMac no longer shows up on the network but can be scanned by Apple Remote Desktop. I can see via Target Disk mode that the update seems to have completed but without access to the booted system, it is hard to tell if all has gone well.
I have tried to kickstart the sharing by first trying to ssh into the iMac in order to run a script to re-enable sharing. This I tried by first booting the iMac into single user mode and typing
mount -uw /
launchctl load -w /System/Library/LaunchDaemons/ssh.plist
reboot
But no go. SIP won't let anything in /System be written over. I even tried copying ssh.plist over to /Library and launching it from there. Doesn't seem to work. SSH still reports connection refused.
Trying to launch a Terminal from Recovery Mode is a non-starter without a screen so is there any other way of killing SIP so that I can ssh in?