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Questions tagged [startup]

Usually referring to the startup process of a device or computer from an initial "cold" state rather than sleep or hibernation.

0 votes
0 answers
97 views

Can boot with external SSD via USB, but can't boot USB flash drive with same data

I have a SSD, which I'm using to boot sometimes from. Yosemite is installed on it. I have some legacy apps there which do not run on newer OS versions (Catalina and newer). Now I've cloned the SSD ...
timaschew's user avatar
  • 101
3 votes
1 answer
65 views

Triple booted macbook pro has 6 boot options instead of 3, how do I delete the rest?

After struggling with triple booting (Kali, windows & macOs) for sometime, I finally won. But now I have two problems I will start with what I think is an easy solve for those with much more ...
Simphiwe N's user avatar
1 vote
1 answer
29 views

White screen - MacBook 15” early 2011

I have a MacBook Pro 15" early 2011. It has been slow and full since a long time so I decided to upgrade it with a Samsung 870EVO 2.5 SATA SSD. Since then, I can't access anything. I can't boot ...
Mélissa's user avatar
1 vote
0 answers
264 views

Third party extension is preventing M1 2020 MBP from booting

MBP 2020 M1, OS: Big Sur 11.7.9 My mac started malfunctioning lately: this morning I opened the lid and was greeted by the recovery screen telling me that there was a problem with the computer. I ...
Rus9Mus9's user avatar
0 votes
1 answer
689 views

Cannot boot Mac OS via USB (created via M1 chip) on 2012 MacBook Air, freezes for a while and then just ignores it

I am trying to revive my old 2012 MacBook Air (Model A1465) to use an older version of MacOS for a program that could only run on MacOS High Sierra or earlier. Luckily the Mac comes with a ...
Guillaume Taillefer's user avatar
1 vote
1 answer
54 views

System Crashes, SSD Boot Partition Not Found after Power Surge

Hi all—I've read this community for a long time, and am now hoping you can help me more directly. I was using my 2012 MacBook Pro last night when the power in my home went out and came back. The ...
sanktlafaeru's user avatar
0 votes
1 answer
834 views

Startup Disk Cannot be found (cannot reinstall macOS from Disk Utility in Recovery Mode) [duplicate]

Last night, I was booted my MacBook Pro and it was working find, after a few minutes restarted my MacBook Pro with Bootcamp. But then it showed a screen with a circle a line through it. I noticed that ...
chikitin's user avatar
  • 129
0 votes
1 answer
397 views

When I try 'sudo gpt -r show disk0' I get: 'gpt show: unable to open device 'disk0': Operation not permitted'. How could be this overcome?

Trying to replicate the gpt option on this post How to examine disks and their partitions via terminal? I do: sudo gpt -r show disk0 what I get is: gpt show: unable to open device 'disk0': Operation ...
nostromo's user avatar
  • 197
0 votes
1 answer
46 views

Unable to boot from USB installer (17-inch, 2.66GHz MacBook Pro (MB604LL/A) [duplicate]

I have an old 2009 macbook pro that had problems with hard drive. I changed it to new SSD (also updated ram to 2x4gb 1066MHz DDR3 SDRAM PC3-8500S), and created bootable USB in windows with TransMac ...
Yippee's user avatar
  • 1
0 votes
2 answers
600 views

How can I do a GPT (Guid Partition Table) sector raw backup with `dd` like in a UNIX/Linux-MBR fashion?

I want to "raw copy" with dd the critical GPT (~ Guid Partition Scheme) bytes of my computer's main hard drive, to an arbitrary file. I tried to do the equivalent MBR/Unix/Linux in my Mac (...
nostromo's user avatar
  • 197
2 votes
0 answers
295 views

How to mount external SSD with encrypte APFS volume very early during boot?

I have an external SSD connected to my MacBook Pro (2021, M1, macOS Vetura). On the external drive is an encrypted APFS partition. I installed some huge applications to that external drive to save ...
Mecki's user avatar
  • 941
1 vote
0 answers
117 views

Touchbar MBP with broken screen won't display on external monitor

I have a Macbook Pro, not sure which year but it's Intel-based with a touchbar and 4 USB-C/Thunderbolt connectors. Recently the screen broke, and the Mac by itself is completely unusable. The computer ...
2ple's user avatar
  • 11
1 vote
0 answers
97 views

Manage "open at login" items programmatically from CLI

I'd like to control a Java (not swift / native) application startup during login. While I can add plists-s to user's LaunchAgents, this does not show up as a login item in system settings. How can I ...
martin's user avatar
  • 121
1 vote
1 answer
435 views

iPhone 3G won't boot

I have an iPhone 3G that has worked well in the past, but it was put away for several years (after I got an iPhone 4s), and when I took it out again it wouldn't boot. It was jailbroken some years ago (...
cashiecoder's user avatar
0 votes
0 answers
76 views

MacBook reboots during Debian installation

I'm trying to install Debian on my MacBook Pro (late 2013): prepare a bootable usb: $ sudo dd if=path_to/debian-live-12.0.0-amd64-xfce.iso of=/dev/sda plug in usb drive and reboot MacBook: The ...
Rahn's user avatar
  • 151

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