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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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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76 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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318 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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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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166 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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705 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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1k 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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371 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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454 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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How to tell the difference between SingleUser and SingleUserRecovery mode on screen?

SingleUserRecovery mode is usually achieved by holding down Cmdr s on start up. This boots the Mac into the SingleUser mode of the Recovery partition. This is either handy o needed for things like ...
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1answer
192 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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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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107 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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4answers
18k 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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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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29 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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19k 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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10k 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
15k 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
187 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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1k 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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233 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
56 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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38k 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
1k 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 printed ...
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807 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
4k 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
179 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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786 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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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
697 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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43 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
334 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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572 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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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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302 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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1k 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
7k 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 ...
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1answer
18k views

fsck -fy hangs on Checking catalog file + issues booting (MacBook)

Last night my MacBook Pro crashed. This morning I tried turning the computer on, and it had a few issues.. Computer doesn't get past initial boot up loading. Fan activates loudly while starting up. ...
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2answers
486 views

What is the difference between -h, -r, -s, and -k, in the “shutdown now” command in single-user mode?

So, I opened up single-user mode to show my friend how easy it was for a Mac to be directly hijacked if someone was able to steal the physical lap top (as opposed to hijacking remotely using SSH), and ...
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289 views

2011 Macbook Pro - reinstall OS X in single-user mode?

I'm working on a friend's 2011 MBP. It's got the oh-so-common issue of the discrete graphics chip being busted, so GUI is hit and miss (most of the time it misses). The current installation has been ...
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461 views

Yosemite Single User Mode

Does "Single User Mode" still work, post v10.10.x ? I tried the following instructions, without success: OS X Yosemite: Start up in single-user mode To troubleshoot your computer’s startup ...
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2answers
1k views

How to get the password hashes for a user in Mac OS X 10+, in recovery/single user mode?

I would like to view the hashes on my Mac, in either single user mode, or the terminal in recovery mode. I tried to follow the steps described in OS X 10.9: where are password hashes stored. But I ...
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1answer
5k views

How to remove/delete a partition in single-user mode?

I have a HD partition that is having problems. I have 3 partitions on that drive. When the partition is mounted (after boot) the disk can not unmount. However in single-user mode the partition is not ...
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2answers
4k views

How to update OS X in single user mode?

I would like to know how to update from 10.10.0 to 10.10.5 just by using single user mode. Is this possible and if so how would you go about doing so. Why would I do this?... Linked to my other ...
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1answer
678 views

Backup files from corrupt disk to usb drive in single user mode

I try to backup my files of a corrupt system. I can start into the single user mode and want so store my home folder to my backup system. To mount my usb drive I need to mount the root disk as ...
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3answers
8k views

How to repair permissions after removing the “wheel” group from my hard drive?

Is there a command in Single User Mode to recover/reinstall the start-up wheel (with root its user access). I removed wheel as a group from any file/folder it had permissions for or access to. I didn'...