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Can’t reinstall OS after factory reset

galmandsværkgalmandsværk
in Desktop

Hi.

I’m trying to factory reset a Mac Mini. I’ve erased the disk as instructed, but when I try to reinstall the OS, I get this message (see picture)!
Does anyone know how to proceed from here? I’ve looked at numerous guides online but they all just say: erase disk, reinstall OS…
Is there another way?

Comments

  • galmandsværkgalmandsværk

    Thanks for replying. Much appreciated.
    I press cmd + r and the Mac asks me to connect it to Wi-Fi, which I do. It then does an Internet Recovery Mode thing for a while, but ends up at a menu with Disk Utility and Reinstall OS. I have erased the disk according to instructions online (GUID + extended journaled) and then proceed to reinstall OS. Everything goes fine until the install is complete and I get the error message.
    If I try to boot the Mac any other way, I just get the blinking folder with a question mark and a link to an Apple-website for further help.

  • galmandsværkgalmandsværk

    And if I try to boot using cmd + option + r for an automatic installation of latest compatible OS, it won’t let me continue because it can’t connect to Wi-Fi, and it doesn’t give me an option to do it.

  • NeuMNeuM

    Here's a video:

  • galmandsværkgalmandsværk

    @NeuM said:
    Here's a video:

    Thanks. Can’t really work out what he does, but his menu looks somewhat different from mine. I don’t have a Verify button in Disk Utility, and I can’t access WI-FI from a drop-down menu as he does at 1:47…? 🤷🏻‍♂️

  • NeuMNeuM

    @galmandsværk said:

    @NeuM said:
    Here's a video:

    Thanks. Can’t really work out what he does, but his menu looks somewhat different from mine. I don’t have a Verify button in Disk Utility, and I can’t access WI-FI from a drop-down menu as he does at 1:47…? 🤷🏻‍♂️

    Search for other videos on YouTube using the exact same text as appears in the pop-up window you showed on your photo. That will help narrow down the possibilities.

  • galmandsværkgalmandsværk


    For what it’s worth, this is the info on my disks in Disk Utility + the menu screen I get.

  • galmandsværkgalmandsværk

  • galmandsværkgalmandsværk

  • galmandsværkgalmandsværk

    @NeuM said:

    @galmandsværk said:

    @NeuM said:
    Here's a video:

    Thanks. Can’t really work out what he does, but his menu looks somewhat different from mine. I don’t have a Verify button in Disk Utility, and I can’t access WI-FI from a drop-down menu as he does at 1:47…? 🤷🏻‍♂️

    Search for other videos on YouTube using the exact same text as appears in the pop-up window you showed on your photo. That will help narrow down the possibilities.

    Sorry for the clutter of pictures. Can’t seem to add several photos in one go.
    I’ll check out YouTube again.

  • galmandsværkgalmandsværk
    edited March 2023

    EDIT!

    Scrap that! I needed to adjust the screen resolution on my monitor. Now the menu is there. Embarrassing 🙈 still doesn’t solve my problem though.

    Original (stupid) message:
    Most videos show the possibility of accessing the Terminal via a drop down menu at the top of the screen. I don’t get that option for some reason…very confused…

  • robosardinerobosardine

    Just in case you are not aware - Apple provide free 24/7 telephone support. At least they do here in the UK, but you could always phone that number from wherever you are I would imagine. I have found them very helpful in the past. Did you already try the Apple Support website mentioned in Utilities above?

  • galmandsværkgalmandsværk

    @robosardine said:
    Just in case you are not aware - Apple provide free 24/7 telephone support. At least they do here in the UK, but you could always phone that number from wherever you are I would imagine. I have found them very helpful in the past. Did you already try the Apple Support website mentioned in Utilities above?

    Thanks. Yeah, might need to give them a call. I’ve gone through their support page regarding reinstalling OS. Didn’t help. Most videos on YouTube suggest that the problem is often something to do with a wrong date and time, but when I check the date in Terminal, it’s correct, unlike in the videos, where it’s often set to 1999 (“party like it’s…”🕺🏽😜)

  • GavinskiGavinski

    @robosardine said:
    Just in case you are not aware - Apple provide free 24/7 telephone support. At least they do here in the UK, but you could always phone that number from wherever you are I would imagine. I have found them very helpful in the past. Did you already try the Apple Support website mentioned in Utilities above?

    Only if you still have applecare, no?

  • robosardinerobosardine

    @Gavinski said:

    @robosardine said:
    Just in case you are not aware - Apple provide free 24/7 telephone support. At least they do here in the UK, but you could always phone that number from wherever you are I would imagine. I have found them very helpful in the past. Did you already try the Apple Support website mentioned in Utilities above?

    Only if you still have applecare, no?

    I’m don’t think so. I never ‘took out’ Apple Care - I didn’t even know what it was until you mentioned it there, I had to look it up. I just called them and they helped me out and I’m certain it was out of warranty. Maybe I’m mistaken and I was within some timeframe when I called, but I don’t think so. Mind you they probably would be a bit overwhelmed if it was open season and anyone with an Apple product could call them. It’s definitely worth a go though.
    I also noticed when I was looking it up that there is ‘Apple Support Communities’ online so they might be of help as well.

  • wimwim

    @galmandsværk said:
    And if I try to boot using cmd + option + r for an automatic installation of latest compatible OS, it won’t let me continue because it can’t connect to Wi-Fi, and it doesn’t give me an option to do it.

    Is there any way you can connect via an ethernet cable? For instance, my router has five ethernet ports on the back of it, any of which will get me on the internet with no WiFi needed. My MacBook Pro doesn't have an ethernet port, but works with a cheap USB ethernet dongle, which is fine for that kind of purpose.

  • galmandsværkgalmandsværk

    @wim said:

    @galmandsværk said:
    And if I try to boot using cmd + option + r for an automatic installation of latest compatible OS, it won’t let me continue because it can’t connect to Wi-Fi, and it doesn’t give me an option to do it.

    Is there any way you can connect via an ethernet cable? For instance, my router has five ethernet ports on the back of it, any of which will get me on the internet with no WiFi needed. My MacBook Pro doesn't have an ethernet port, but works with a cheap USB ethernet dongle, which is fine for that kind of purpose.

    Thanks, that’s a good idea. However, I think it’s finally working. Got it to boot and reinstall latest compatible OS. It went through the installation and then a gigantic lightning bolt symbol appeared on the screen. Couldn’t do a thing about it. Shut down the Mac and restarted it, and now it seems to have picked up on the installation process. Voodoo stuff, sometimes…fingers crossed that it finally works.

  • galmandsværkgalmandsværk

    jason said:

    @galmandsværk said:

    @wim said:

    @galmandsværk said:
    And if I try to boot using cmd + option + r for an automatic installation of latest compatible OS, it won’t let me continue because it can’t connect to Wi-Fi, and it doesn’t give me an option to do it.

    Is there any way you can connect via an ethernet cable? For instance, my router has five ethernet ports on the back of it, any of which will get me on the internet with no WiFi needed. My MacBook Pro doesn't have an ethernet port, but works with a cheap USB ethernet dongle, which is fine for that kind of purpose.

    Thanks, that’s a good idea. However, I think it’s finally working. Got it to boot and reinstall latest compatible OS. It went through the installation and then a gigantic lightning bolt symbol appeared on the screen. Couldn’t do a thing about it. Shut down the Mac and restarted it, and now it seems to have picked up on the installation process. Voodoo stuff, sometimes…fingers crossed that it finally works.

    You really should check the wealthy state of your internal HD.
    If installations fail or result with such “voodoo” magic, it often is a developing hardware issue, especially with the HDD.

    Advice: If your internal HD is dying, this is not the end. Just connect an empty external SSD to the mac and install there. This way you also may drastically improve the speed of your mac.

    Thanks. I finally made it work. But, it doesn’t seem like the factory reset has dramatically increased the speed of the Mac. So I might look into the external drive solution 👍

  • galmandsværkgalmandsværk
    edited March 2023

    jason said:

    @galmandsværk said:

    jason said:

    @galmandsværk said:

    @wim said:

    @galmandsværk said:
    And if I try to boot using cmd + option + r for an automatic installation of latest compatible OS, it won’t let me continue because it can’t connect to Wi-Fi, and it doesn’t give me an option to do it.

    Is there any way you can connect via an ethernet cable? For instance, my router has five ethernet ports on the back of it, any of which will get me on the internet with no WiFi needed. My MacBook Pro doesn't have an ethernet port, but works with a cheap USB ethernet dongle, which is fine for that kind of purpose.

    Thanks, that’s a good idea. However, I think it’s finally working. Got it to boot and reinstall latest compatible OS. It went through the installation and then a gigantic lightning bolt symbol appeared on the screen. Couldn’t do a thing about it. Shut down the Mac and restarted it, and now it seems to have picked up on the installation process. Voodoo stuff, sometimes…fingers crossed that it finally works.

    You really should check the wealthy state of your internal HD.
    If installations fail or result with such “voodoo” magic, it often is a developing hardware issue, especially with the HDD.

    Advice: If your internal HD is dying, this is not the end. Just connect an empty external SSD to the mac and install there. This way you also may drastically improve the speed of your mac.

    Thanks. I finally made it work. But, it doesn’t seem like the factory reset has dramatically increased the speed of the Mac. So I might look into the external drive solution 👍

    On my old mac mini I got 10 times faster speed by in-building an SSD. If your mac supports USB 3 it should also work with an external SSD. If fusion drive is inbuilt, this would not generally improve the speed.

    On all older Apple macs without fusion drive, the extremely slow HD is slowing down the entire system drastically. The startup does need extremely long there, which was gone by using an SSD.

    This whole SSD installation thing is brand new to me, so perhaps you can enlighten me at bit more? 😊

    I have a Mac Mini late 2014. Would it work with an external SSD with that model? And does any model suffice?

    If not, do I then install an SSD inside the Mac Mini as explained in this video?

    Finally, do I then erase the original disk and reinstall OS on the new SSD?

    Or have I completely misunderstood how all this works? 😂

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