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Lenovo M700 Tiny on Sierra won't boot after security update

Joined
Sep 7, 2012
Messages
59
Motherboard
ASUS Z97-a USB3.1
CPU
i7-4790K
Graphics
Nvidia GTX 960
I have a Lenovo M700 Tiny i3-6100T integrated gpu only, with Sierra installed and working perfectly for a few years. I decided to run the security patch for it. After the patch, it no longer boots. Attached is the screen cap before it continuously reboots itself over and over. I tried booting into recovery, but it would get stuck about 70% on the progress bar and just sit there.

Previously I never applied any updates once an install has been completed exactly due things like this happening. But in a thread I posted about not updating to High Sierra or later, my hesitation was questioned, and was assured it would be perfectly fine. So I thought I'd start with just a security update.

Anyways, enough of the backstory, I have 2 paths, I can either start anew and try to install the latest macOS it'll support, or repair this install. Either case requires that I pull some files off of the original install. But when I put the SSD in an external enclosure, neither my High Sierra nor my El Capitan system would even recognize the drive in Disk Utility. I tried different cables and enclosures. Is there a trick to getting a boot drive to be recognized? If it's a simple repair, I can just get it booted then pull the files, then maybe wipe and reinstall to latest and greatest. Is anyone willing to help?
 

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P1LGRIM

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Coincidentally perhaps, the security certificates for the Nvidia web drivers expired on 1st June.
Use the forum Search tool for info.
Try booting with nv_disable=1 or in safe mode.

Oddly your image shows a problem with Lilu.kext.
 
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Joined
Sep 7, 2012
Messages
59
Motherboard
ASUS Z97-a USB3.1
CPU
i7-4790K
Graphics
Nvidia GTX 960
Thank you for the reply. The M700 Tiny only has integrated graphics, but I will give it a try today and come back with my results.
 

P1LGRIM

Moderator
Joined
Mar 2, 2012
Messages
25,861
Motherboard
Lenovo ThinkStation p700
CPU
2x E5-2620 V3
Graphics
RX 560
Mac
  1. MacBook Pro
  2. Mac mini
Classic Mac
  1. Power Mac
Mobile Phone
  1. iOS
Thank you for the reply. The M700 Tiny only has integrated graphics, but I will give it a try today and come back with my results.
Disregard my previous post then, I was going by the hardware in your profile.
 
Joined
Sep 7, 2012
Messages
59
Motherboard
ASUS Z97-a USB3.1
CPU
i7-4790K
Graphics
Nvidia GTX 960
I've updated my post for better clarification, sorry for the confusion.
 
Joined
Sep 7, 2012
Messages
59
Motherboard
ASUS Z97-a USB3.1
CPU
i7-4790K
Graphics
Nvidia GTX 960
I should probably post this in the Catalina forum instead. I'll leave the original post as strike through.

Finally had some time to get back to this. I took a backup of the Sierra EFI partition and created a Catalina USB drive, intending to following this guide since another user with a Lenovo M700 Tiny was suggested to follow that guide.

Then I copied my Sierra EFI and overwrote the EFI that was on the Catalina USB that I created. Ran Clover configurator and generated new serial #, SMUUID, and ROM values. I then formatted the Sierra SSD using a High Sierra box with APFS, GUID and named it "Catalina" per UniBeast guide here. Upon boot, I cannot see the formatted Catalina drive seen in attached pic. What did I do wrong?

The M700 Tiny is:
i3-6100T 3.20 GHz
Intel HD Graphics 530

Also attached the back up of the EFI from Sierra that I used. The install log is from the previous install in 2017.
 

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  • Screen Shot 2022-06-11 at 11.45.15 AM.png
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  • Lenovo M700 Tiny EFI Partition.zip
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