Questions tagged [single-user]

OS X can run in single-user mode by holding down ⌘-S after powering on the system. This allows for maintenance tasks to run with the majority of the OS shut down.

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25 views

Trying to copy files in single user mode but system says read-only (Catalina)

after i installed some wacom drivers my macbook (pro 2014) refuses to start. it goes to full progress bar but then gets stuck every time. safe mode and verbose mode do not work. i have accepted that i ...
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Mounting External Drive in Single User Mode When Internal Drive Unmountable

2010 iMac running OS X 10.12.6 is failing to start up (progress bar gets to about 75% and then it powers down). I have exhausted all of the following to try to at least salvage some files: Go to ...
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32 views

Can you Help me with a A1466 MacBook Air That won't boot no matter what I try?

So, my brother's MacBook Air isn't working anymore. I have had my fair share of problems with my macs (2011 and 2012 macbook Pros, imacs, macBook airs,etc), and I've always been able to resolve these ...
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MacBook Pro 2011 Single-user mode hangs

I have a MacBook Pro 2011 with known GPU-problem and MacOS High Sierra on board. 3 years ago I solved this problem with this tutorial: link So I need terminal to enter commands, but I can't enter ...
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How to login again in Users and Groups again and also how to gain sudo access which lost privilege [duplicate]

macOS High Sierra (10.13.6) How to login again in Users and Groups Also before with old username, I could access sudo. How to gain back sudo access. I went into Users and Groups --> Unlocked ...
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1k views

Unable to mount read-write in OS Catalina 10.15.4 in Single User Mode

The command /sbin/mount -uw / no longer works after I upgraded to Catalina. I've read that this is due to Apple. Is there a new solution to mount to read and write through Single User Mode?
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Mac fails to boot up after crash, showing white lines, disk checks out OK

I'm running an old Mac Pro (early 2009) with Lion 10.7, 650GB hard drive near full. This morning the computer became unresponsive besides the mouse and showed columns of light gray lines across the ...
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39 views

Crash when trying to activate root in single user mode

when i try to activate root in the single user mode, my computer crashes. It says something with stress and I have to press a key to restart. I used the tutorial How to activate root using the Single-...
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Catalina | Mount not working with external disk

My MBP is not booting up. When I run the mount command to use /sbin/mount_hfs /dev/disk2s1, I get the following error: Get Master Block : Error 1 opening /dev/rdisk2s1 mount_hfs : error on mount(): ...
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197 views

I just changed my single user home directory to “/”, can I return back?

While deleting another user account on System Preferences, I changed the home directory for the primary user (System Preferences>Users and Groups>Users>Advanced Settings) to "/", because I already ...
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149 views

Classic boot disk password before log-in screen in macOS 10.15 (by creating users in single user mode?)

I followed this tutorial to bypass the conversion of a pre-defined hard disk password of my boot drive to the recent FileVault state where macOS doesn't distinguish a boot password from a user ...
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248 views

In OS Catalina make a account Standard

I have an MacBook Air with the OS Catalina installed. I need to change my admin account to a Standard User account.So how would you change a account from Administrator to a Standard account by using ...
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3k views

Delete account on Mac OS Catalina Single User Mode

I have an account on my MacBook Air with the new Catalina OS. I am unable to delete an account and I have tried to delete it using Single User Mode, I have forgot the password for admin but I cannot ...
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41 views

Stuck with booting on Mac

Not able to login into my Mac. I have deleted some files earlier today and after that mac never starts and hangs in booting state. I am to login to SINGLE USER MODE and I deleted the file /....
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395 views

Removing User from Single User Mode Fails - MacOS 10.14

So I’m trying to delete a specific user account while avoiding the traditional SysPrefs method. I do have FileVault enabled and am running 10.14. This is what I’ve tried in Single User mode: /sbin/...
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1answer
1k views

Mounting USB stick in single-user mode: unsupported sector size (0)

I'm trying to mount a USB stick in single-user mode (thankfully there's nothing wrong with my Mac, I'm just trying some stuff out). These are the commands I've been running: $ mount -uw / $ mkdir /...
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1answer
4k views

How can I mount the root Data volume as writable on macOS 10.15 Beta 1 when booted into Single User Mode?

I need to reset my admin password (https://apple.stackexchange.com/a/61932/17533). Can't boot into Recovery Volume, so I need to boot into Single User Mode and modify the Data volume. When booting ...
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740 views

Is it possible to downgrade Boot ROM SW to try and fix unbooting Late 2012 iMac from Single User Mode?

I currently have 283.0.0.0.0 Boot ROM SW installed on my crippled Late 2012 iMac - which I upgraded HDD->SDD, tried to unsuccessfully install Mojave, then broke fusion setup, erased drives and am now ...
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1k views

Macbook restarts when logging in

My Macbook Pro (Mid-2015, Mojave) restarts after I type my password to log in. The progress bar fills to about three-quarters before this happens. I have tried: Resetting PRAM Resetting SMC ...
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1answer
248 views

How can I regain an admin account on my iMac?

I have seen this question several times but no clear answer. I changed the password on the admin user account and It saved it as a standard user. I just bought the Mac so I’m a newbie. I have tried ...
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43 views

Another black screen + cursor problem

My macbook 13inch late 2013 on highsierra gives me the blackscreen+cursor after I login. After I googled it, I found a fix involving the single user mode, but when I do press command+S it shows the ...
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1answer
158 views

Accessing the Terminal on a 2008 MacBook Pro, when booting in single-user mode

I am booting my 2008 MacBook Pro into single-user mode and attempting to access the Terminal by using the key combination Command + s during startup. But it doesn't appear to be working. Pressing ...
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26k views

Single-User-Recovery-Mode on High Sierra 10.13.6

Before the High Sierra update to 10.13.6 I was able to boot in single-user-recovery mode by holding Cmd-R-S at startup, but after the latest software update booting while holding Cmd-R-S just enters ...
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2k views

What does “AMFI: code signature verification failed” mean during single-user boot, and should I worry?

I had to boot into single-user mode for something and during the boot process I noticed repeated error messages, "AMFI: code signature verification failed". What could be causing these, and is this ...
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30 views

All accounts lost on each reboot

I recently purchased a used 2015 MacBook Pro. The machine is in excellent condition, and they did a factory reset before I took the device. Every time I shut down the machine, all of the users have ...
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20k views

How to setup iPads to be shared by multiple users?

My school has iPads for use for students. Currently, each student has their own iPad, with their own password, and own files on it. But I've seen other schools instead have laptops where students can ...
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2answers
14k views

I've lost administrator access and /var/db/.AppleSetupDone is read only

I have lost administrator access after trying to change my username in system preferences and restarting. I have followed the directions by rebooting in Single user mode, ⌘S and typing the following ...
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1answer
2k views

Single user mode comes up with wrong boot disk

For some reason Single User Mode is now booting to something other than my usual HD partition: The disk has no /Users directory; fsck -fy takes only 1.7sec; df shows the root device to have only 3.9M ...
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2answers
20k views

How to mount USB Drive in Single User Mode in Mac OS X

I have faced a problem where my Mac is not booting up and throwing messages like this continuously. process[182] crashed: opendirectoryd. Too many corpses being created. I tried repairing the Hard ...
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1answer
220 views

I had to go in to single-user mode, how I can restore my data back?

I had to go in to single-user mode because I couldn't log into my admin account, I made a new account and changed my admin password. Now, on my first admin account, I can search for my files but ...
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2k views

Stuck on grey screen after internet restore

My early 2011 MBP 15 stopped loading one day and is stuck on the grey screen when I start it up. I have changed the hard drive with a formatted one (that I did on my Mac Pro) to the journaled file ...
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234 views

Why is my .trash folder not visible in single user mode?

So I booted of to single user mode for fun and I was checking whether my trash folder will be present there but it was not and I also mounted / as read and write but when I boot to my Mac and then use ...
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1answer
68 views

Can I still boot into Single User Mode if I disable the shell for root?

It's been suggested that, since the root account now appears in the accounts database on macOS 10.13.1+ by "default" (by accident it seems), it might be a good security measure to disable shell access ...
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1answer
41k views

Changing my administrator user's username has removed privileges [duplicate]

I've taken over my wife's Mac mini running osx high sierra. I was in a rush and went into system preferences, clicked on the current user (advanced options), which was named 'user', which was also ...
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2k views

How do I mount an encrypted disk in single-user mode?

How do I mount an encrypted disk in single-user mode? I tried using one of the answers to “How can I mount an encrypted disk from the command line?”; but when I tried using “diskutil” as suggested, I ...
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1answer
2k views

Changing the Keyboard Layout for Single User Mode

Apple says: "When in single-user mode, the keyboard layout is U.S. English." (emphasis added) Naturally, not every hardware keyboard to be used on a Mac in Single User Mode actually is ...
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1answer
1k views

macbook pro - disable csrutil without recovery mode

So, my MacBook Pro just died and it appears to be the standard known issue with the graphics card. There seems to be a possible fix by moving some system files around. However, to do this, I have to ...
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2answers
5k views

fsck_hfs keeps returning “The volume was modified”

I have a iMac (Late 2013) which has a standard 1TB 7200 RPM hard drive. Long story short, I noticed a dramatic slowdown in Windows (in Bootcamp) and on the Mac. After installing DriveDx, it reported ...
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1answer
202 views

How do I enter commands in single-user mode?

After every command line do I have to press enter and wait for it to end before I go to the next one? I have no clue at all and am desperate to solve this problem. This is my first time using single-...
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871 views

Wireless Networking in Single-User Mode

How to enable AirPort network (and other) services; in single-user mode? Input: (including prompt string) bash-3.2# networksetup -setairportnetwork en0 <network> [password] Output: Error ...
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82 views

OSX: How to backup personal data via CLI script or command

I need run a backup of the personal data from my MacBook Pro (native HDD) to an external HDD. I have used this external drive to back up this internal drive previously via Time Machine. I don't have ...
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1answer
749 views

I am unable to boot my mac in El Capitan and Single User mode

I am unable to boot El Capitan. When I turn on the computer it seems to load fine for a while, but then this screen shows up: When I try to boot into Single User mode, it stops loading at this point:...
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1answer
46 views

MacBook (13-inch, Late 2009) only boots up to Apple logo with little spinning wheel

Using single-user mode, I get this message: launchctl: Please convert the following to launchd: /etc/mach_init.d/dashboardadvisory.plist What does it mean and how do I convert launchctl to launchd?...
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2answers
362 views

Back up Mac using CarbonCopyCloner with command line only?

Background: I never expected to have only command line access to my Mac, but the day has arrived! :) Due to a video card problem, any attempt to boot the normal OS or recovery partition results in ...
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1answer
671 views

USB 3.0 disk not mounting in single user mode

I have a MacBook Pro Retina (Early 2013) with MacOS X 10.11. To cut a long story short, due to issues with the NVIDIA card and graphics switching, I'm able to boot into single-user mode, but can't ...
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1answer
2k views

Booting into single user mode by default

I want to force myself to use the command line interface of OS X. How can I make my Macbook Air boot into single user mode by default?
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1answer
1k views

Cannot create new user in Single-user mode

I try to create new user using the following commands: /sbin/fsck -fy /sbin/mount -uw / launchctl load /System/Library/LaunchDaemons/com.apple.opendirectoryd.plist dscl . -create /Users/username But ...
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343 views

Builduser() Error building user of type [duplicate]

I have entered Single user mode like 5min ago. Meanwhile I shut down the computer, tried to get back to Single user mode my pressing cmd+S and it doesnt work. It outputs the error saying Builduser() ...
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2answers
2k views

Is there The Way to get into Single User Mode w/o rebooting?

Like with old-days-UNIX when you can just send a command to init and you're staring at black text screen with shell for your own use. ;)
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1answer
8k views

Error while trying to create an account in single user mode on OS X Mavericks

On OS X Mavericks, I am trying to create an account using single user mode, using the following script. #! /bin/bash # create user dscl . -create /Users/hiddenuser dscl . -create /Users/hiddenuser ...