Besides, if that one extension had vanished, who knows what else was missing or damaged? The only way to fix that now would be to re-install OS X. But now with SIP, trying that sort of trick is almost certain to fail, and my problems could have been amplified. Sure enough, a few dozen entries after its last restart – my iMac had been restarted plentifully by now – there were a couple of lines which reported that the major kernel extension (KEXT) responsible for supporting its Ethernet port had not been found.īack in Yosemite and earlier, I could then simply (relatively) locate the last working copy of that extension, pop it back into the /System/Library/Extensions folder, restart, and away we’d go.
I browsed back through the logs to see if there were any clues there. By this stage I was not convinced: my last iMac had passed even the extended hardware check when its graphics adaptor was broken, which hardly encouraged me to place confidence in that test result. In an effort to console myself that it was something simpler, I ran Apple Diagnostics, which told me that the hardware checked out correctly.
Then the iMac would be away for a week or so, its Fusion Drive would be re-initialised… That would mean traipsing over to West Quay in Southampton, which would take up most of a morning, or hanging around waiting for a courier to collect it for shipping to a repair centre. From my recollection of this iMac’s logic board, a hardware failure would almost certainly require a replacement. I was worried, though, why my Ethernet port had suddenly vanished. My only option was to press ahead and capture as many screenshots on the iMac as I could, then fall back to getting the rest on my MacBook Air later, which would (if the App Store was not awry) at least let me run my purchases. This was worryingly like the last time that Apple’s security certificate was changed, last autumn, and I knew that another change was occurring this month. Each time it thought for a moment, then told me that an unknown error had occurred, and advised me to contact support. Each time that I tried to run an app purchased there, I was informed that I was running it for the first time, and asked to sign in with my Apple ID password. The App Store thinks it is a different Mac, but could not cope with the fact that some of it was the same as my old system.Īt this stage, I was beginning to wonder if the App Store was having a bit of a crisis too. When that suddenly vanishes, this authentication mechanism breaks. One of the key pieces of hardware information which is factored into this is the Mac’s Ethernet MAC.
MAC ETHERNET CABLE UNPLUGGED MAC
When you try to launch an app purchased from the App Store, it and OS X run a quick security check to see whether that Mac and its associated Apple ID are authorised to operate. It turns out that losing the MAC address on that port made OS X and the App Store think that this was a different Mac altogether, and almost all my purchased apps were now broken. My Mac was no longer completely crippled, just largely so. I then checked for the MAC address of the Ethernet port: there was none, so I turned AirPort on to at least re-establish connections with the outside world. Although it had been working just a minute ago, I had to spend some time proving that there was electrical connectivity from the back of the iMac to the network and modem-router. Sometimes, when we are asleep in bed, our cat roams the odd nooks and crannies in our house, and could easily have dislodged a cable. It was now completely disconnected from the network and Internet, complaining that its wired Ethernet was unplugged.Įven after all these years interpreting error messages, I believed what it told me. But once restarted, this was no longer my iMac. I made an early start, and thought it best to restart my iMac into its special screenshot user account which I keep preconfigured so that each shot meets the detailed editorial rules. For the first time in years, I had two writing deadlines which coincided: by the end of the day (or night), I had a load of screenshots to take, prepare, and submit along with the almost completed text for two articles.
0 kommentar(er)
