I tried to install it in single user mode, but the USB drive doesn't mount in single user mode. I also tried to copy it to the hard drive from the startup CD, but Terminal reports the volume is read-only. I don't have the correct firewire cable. I can re-image, but there are a truckload of updates to run, and I'd rather fix it. I had a Mac nightmare months ago now still traumatized whereby I had need of Applejack and had my first experiences with single user mode not being a Mac guy I thought about that but the OS disk is in and it doesn't see it either.
I don't know if there is a way to list and then mount unmounted volumes in SU Mode. If you deal with more than 1 Mac MacBook Air excepted it would be good to have a Firewire cable on hand. I'm open to ideas.
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DiskWarrior is probably the best bet for a recovery if that is where you are going with the problem. What year iMac are you working on? I have successfully changed the hard drive going all the way back to the 06 iMac without issue.
That is the '11 27" model. Even if I can replace it, I don't have the tools to get the glass off and I'd just assume leave that to someone authorized by Apple.
I pick my fights carefully. Booting a Mac from optical media usually does. It's not a panacea of course, and shouldn't be used "just cuz" it's available any more than checkdisk should be used on a drive where you know it's failing and you have to get the data off as quickly as possible. The great thing about DW is it can build a new drive directory and only commits the change to disk after many fail-safe checks that it makes. Hold Command and R at boot right away to enter the Recovery partition. It's always best to check a drive while booted from another volume external drive or CD , or the Lion recovery partition.
Is there another possibility to mount my drive or to access my data somehow? The thing is that I do not have a backup and that is why I need to access my data and store them somewhere prior being able to do a clean reinstall of my Mac. Sadly, he is not the only person who suffers data loss due to unmountable Mac internal hard drive.pierreducalvet.ca/7334.php
OS X's BSD/unix command-line
As mentioned above, your Mac computer won't boot if the Macintosh HD isn't mounted. Moreover, your any attempts to fix it may write new data which overwrites the original data on the drive. Thus, to avoid data loss, you're recommended to recover data from the unmountable Mac internal hard drive as the first step.
Moreover, the program can also recover data from formatted drives, recover data from inaccessible drives, and recover data from unreadable drives, and so on. It's fully compatible with macOS Catalina You can still recover data from the unmounted Mac internal hard drive with the help of iBoysoft Mac Data Recovery.
How to fix Mac internal hard drive won't mount issue?
This program will start scanning for lost files on the drive. Step 5: Preview the scanning results, and choose the files you want to get back. Step 6: Click the "Recover" button. You need to specify a different location to store the recovered files.
OSX: Mount a USB Hard Disk in Single User Mode
If you fortunately have another healthy Mac computer, or you can borrow one from your friends, you can create a bootable drive and then recover data from it. Insert a USB drive into the healthy Mac, and choose it as the media to create a bootable drive on.
Click "Make bootable" button. The creation process will start immediately. Be patient as it could take a while. Note: This process will erase all data on the USB drive. So please be sure to make a backup if there're important files. When the process completed, you'll see a window showing the next steps to recover data. You can take a note, or take a photo with your phone, of the information. When everything is ready, click the "Close" button.
Select iBoysoft Mac Data Recovery from the boot options.
macos - Mount external USB drive in Single User Mode - Super User
Note that while Single User Mode gives you access to a command prompt, it is with root access and is entirely different from the regular command line interface accessed from the Terminal, with less commands, tools, programs, and other data available without mounting the file system anyway. When you boot back up again, the Mac will boot as usual and not into Single User Mode. Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox!
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