Repair disk single user mode mac os x

Once OS X is booted again, it can be a good idea to confirm all is well by . I try to boot fsck on my mac according to your suggestion when it.
Table of contents

Join , subscribers and get a daily digest of news, geek trivia, and our feature articles.

  • How to Repair Hard Disks with fsck on macOS.
  • iphoto download for mac free;
  • mac backup strategy time machine.
  • Repair Your Hard Disk in Single User Mode | Everything Macintosh.
  • categories.

Mac OS X contains a variety of tools for repairing disk, partition, and file system errors. These options work like chkdsk on Windows , checking for disk and file system errors and repairing them. You can perform a check from within Mac OS X, but it may sometimes be necessary to use recovery mode to fix problems.

You can either run the First Aid function on an entire disk, or an individual partition on that disk. If it finds any errors, it will attempt to automatically fix them for you. Sign in with your password and your Mac will then check your disks. This will make the login process take longer than normal, so be patient.

Repair Hard Disks with fsck on macOS - Apple Gazette

You can reboot your Mac at this point. Ideally, that should be the end of it — especially if you used the safe mode trick above.

Single User Mode command to fix Mac that stucks at Apple Logo with a loading bar during Startup

However, in some cases, your Mac may find disk or file system problems and be unable to repair them when you perform the above steps. The solution is to boot into a special recovery mode. Your Mac will be able to fix errors on your system drive from recovery mode. Your Mac will load straight into recovery mode.

Repair Hard Disks with fsck on macOS

Those may have helped, I don't know. One of them caused the system to start posting information to my display, which combined with the vertical lines was a real pain in the butt. There are two "com. So I created my mount point like this:.

Use “First Aid” in the Disk Utility

I haven't looked into those plist files yet, but something about loading them was keeping my Mac from being shut down properly. So to shut my system down, I first unloaded all of the plist files like this:. At that point I think you can shut down your system by typing exit , but I was trying to do something else next, so I used the reboot command instead. Regarding that mount point, I don't think there's anything special about using the Volumes directory. In my younger days as a Unix admin, I'd create a mount point wherever I wanted to, so unless OS X is doing something unique, you can probably create a mount point wherever you want.

How to Repair a Mac Disk with fsck from Single User Mode

As mentioned at the beginning of this article, these notes pertain to a model iMac running Mac OS X Other Mac operating systems are probably at least slightly different. I hope these notes have been helpful, and will save you a little time. I know they would have saved me several hours if I knew about all of this last night.

I'm just an average computer guy trying to get my grip on CLI. Google some commands I can use to troubleshoot in Single User Mode. I was reading all these stuffs about 'dscl' 'dsenableroot'. And all of a sudden, I found you. Well writen! Thanks this really saved the most important data in my mac. You are a savior really.

Thanks again. I needed to get some data off a Mac that wouldn't boot in any sort of graphical mode, due to GPU issues apparently a known issue that happens to a lot of Macs so I wanted to copy off the most important data before handing it off to Apple. I'm a developer, so I'm comfortable with the command line, but this is stuff I've never touched I'm not exactly the sysadmin type!

favorite books

Thanks so much for the detailed instructions! How to access a USB drive while in Mac single-user mode. By Alvin Alexander. Last updated: March 10