Macbook Pro Problem - help needed

I've just got back from Dusseldorf where we were showing the Naim for Princess Yachts system (brilliant by the way!). But I now find that my Macbook Pro has a problem.  It starts to boot, and I see the status bar start to fill up, then slow, then take ages to reach the end but that's as far as it goes. I can get into the recovery section.  I've run a repair utility.  I've also done a hardware scan (short and long) and no issues found. I've reset PRAM. However, still no dice and I get the same if I try to enter safe mode. I did an update to High Sierra a few weeks ago and all I can think of is that something there has corrupted. What to do? I'm thinking of trying to get hold of a USB stick with a bootable OSX onboard. But in the meantime can any of you Mac experts help?

Original Post

Hi Richard,

Not sure if booting into recovery HD partition aplies to OS High Sierra as its APFS - hold down Command & R as it attempts to boot & you will get a limited number of tools, you can repair disc permissions.

Once you get sorted I recomend a copy of Carbon Copy Cloner which makes an exact copy of your Mac, hidden partitions aswell.

Bon chance

Or indeed;

https://support.apple.com/en-us/HT204904

which will help with;

Command (⌘)-R
Install the latest macOS that was installed on your Mac, without upgrading to a later version.*


Option-Command-R
Upgrade to the latest macOS that is compatible with your Mac.**


Shift-Option-Command-R
Requires macOS Sierra 10.12.4 or later Install the macOS that came with your Mac, or the version closes

If it’s an SSD Mac, ie recent, it may be a problem with the SSD itself, booting from a usb copy of High Sierra might allow you to recover some/all of your files but given the recent OS changes, I would guess the OS should match.

As others have said, best of luck!

KR, J

Does this describe your problem?

https://discussions.apple.com/thread/8158292

If so, it sounds like a tough problem affecting many users. Some users seem to have had to reinstall the OS. One user (Jan 19 2018 11:37) managed to repair the disk with First Aid using a second computer and then booting from USB stick. Nina R on the same page suggests yet another solution.

And I will check the backup of my High Sierra Mac Mini tonight...

JFritzen,

yes, that thread opening post describes exactly the same issue I am having. The recovery dialog just tells me it's getting" too many corpses", whatever that means. I was having to use the hotel's open (and probably rather insecure) network to do work, so i do wonder whether it has let in something malicious.

My Macbook Pro is a 2014/15 model, 500GB HDD. I will try the option command R and see what happens...

Richard Dane posted:

JFritzen,

yes, that thread opening post describes exactly the same issue I am having. The recovery dialog just tells me it's getting" too many corpses", whatever that means. I was having to use the hotel's open (and probably rather insecure) network to do work, so i do wonder whether it has let in something malicious.

I've not had problems with malware affecting Macs so far (knocking on wood). I'd rather guess it's the fault of a buggy High Sierra installer or something like that.

From the security point, once recovered check the firewall is turned on under system settings, security & privacy. Something I consider essential to run in a web browser these days is NoScript, it controls Javascript and stops all manner of malware. Whilst Malwarebytes is good, I use Sophos Home on  my Mac, most 'home' programs are crap but Sophos is rather good.

Richard,

all the replies you had are variably spot on. The 'too many corpses' thing is suspicious. Keep in mind that now HighSierra is susceptible to viruses. Once per year I save my files on a USB pen (I have little stuff on my 2011 MacBookPro) and format it from scratch, using the various cmd-R booting system, re-installing OS and everything.

It is not risky nor difficult. The Carbon Copy Cloner is a good suggestion. It's what I used when I substituted an SSD for my HD (I did it myself!) and now I use the original HD as backup and crisis-boot tool.

Best wishes, you'll sort it. P.S. I don't think HighSierra has bugs, but it has been updated a couple of times lately due to malware of some sort.

Max

Thanks everybody.  A quick update.  I backed up the disc via Recovery mode.  I then applied the Time machine backup that I had made just prior to the upgrade to High Sierra. This worked fine and the MBP is now back up and running normally.  I should now be able to take any more recent files from the recent backup disc.

Of course, it does now leave me in a quandary - I'm back on Mavericks but I want to upgrade the OS so I can run Malwarebytes etc.. but it looks like I'm only being offered High Sierra.  Is there a way to only upgrade to Sierra? Or is it safe to go for High Sierra again?

Apparently you cannot upgrade to Sierra anymore, unless you had the Sierra installer downloaded before High Sierra was launched: 

https://forums.macrumors.com/t...high-sierra.2073277/

I guess, now that you know the recovery procedure, you could give High Sierra another try, perhaps with another backup to another disk immediately after the High Sierra installation, so that in case of trouble you could reinstall High Sierra and keep your files. But I'd keep the Mavericks TM backup for the worst case.

 

 

So, I have bitten the bullet and done the High Sierra upgrade again.  So far so good...  If it remains stable for a day or two I will do another TM backup as is and then cross my fingers all remains well. I really hope that Apple can fix whatever it is that causes this problem.

And all this futzing about with the MBP has had me wondering whether I should go further and upgrade to a SSD drive like a Samsung 850 or similar...

Take a look at the Crucial website and run the survey program that will tell you what upgrades will work.

I have used the Crucial SSDs in a MacBook Pro and a Mac Pro and their memory upgrades in both types of machines.  I use an external drive (which is an SSD to clone my main drive to so that I can boot from the external drive - why use an SSD in the external drive, once you get used to the speed of the SSD you do not want to be booting a machine from a spinning disk - it is so slow.

Richard Dane posted:

So, I have bitten the bullet and done the High Sierra upgrade again.  So far so good...  If it remains stable for a day or two I will do another TM backup as is and then cross my fingers all remains well. I really hope that Apple can fix whatever it is that causes this problem.

And all this futzing about with the MBP has had me wondering whether I should go further and upgrade to a SSD drive like a Samsung 850 or similar...

I used SuperDuper about a year ago to clone my spinning drive to a Crucial SSD.

Swapping was easy to do, and it has worked perfectly for my 2013 MBP. 

Hook posted:
Richard Dane posted:

So, I have bitten the bullet and done the High Sierra upgrade again.  So far so good...  If it remains stable for a day or two I will do another TM backup as is and then cross my fingers all remains well. I really hope that Apple can fix whatever it is that causes this problem.

And all this futzing about with the MBP has had me wondering whether I should go further and upgrade to a SSD drive like a Samsung 850 or similar...

I used SuperDuper about a year ago to clone my spinning drive to a Crucial SSD.

Swapping was easy to do, and it has worked perfectly for my 2013 MBP. 

+1 for that

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