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Violet Mcdow

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Aug 2, 2024, 7:23:19 PM8/2/24

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I was just trying to delete everything and start my Macbook fresh. I tried to re-install OS X Sierra, and it keeps failing. When I go to disk utility under internal, there's no Macintosh HD there's only OS X Base System.

Hi there, does anyone know of a way to do this without Internet System Recovery? I have had the exact same problem but on an old 2009 iMac so it only has the standard recovery process (CMD + R). I need to restore my old "Macintosh HD" to /dev/disk0 instead of only seeing the OS X Base System. Trawling through online forums, people have had this sort of problem when there's a HDD failure or a cable problem, but mine is a direct result of restoring the OS X Base System over the primary internal drive.

I'm trying to follow these steps but when I try to the "OSX BaseSystem" drive I can't. The fields for entering the name and format type are greyed out and the erase button is greyed out too. Any idea why this may be?

I have the same problem and tried your solution but it won't let me rename the OS Base system. The erase button is greyed out. I can type in a new name and hit return. The erase button is still greyed out and when I leave disk utility and go back it has reverted to OS Base system.

So do you also see a hard disk icon identified by a brand name, such as "Apple SSD"? If so, when you highlight it, what does it say in the white box underneath in terms of partition map and capacity? Is it called "disk0" at the bottom right? Does it look like it might be your real hard drive?

If so, what happens if you try to erase it? You should get a drop down that gives you a place to enter a name (Macintosh HD), a format that says "Mac OS Extended (Journaled), and a scheme called "GUID Partition Map". If this is really your hard drive, then this step should recreate your Macintosh HD volume.

I didn't restore my mac with the OS X base, I just turned it on and it would not start. I have been trying everything and can't get it to do anything except with command R, it goes to the disk utility, but it gives me no options. It only shoes the OS X as a hard drive and does not let me erase it, or change its name, when I do a repair it does it very quickly and nothing happens. I can't use my time machine back up, it says it can't find it.

Hi! I had problems with my iMac and tried to erase the OS and re-install, but I did something wrong and now all I have is asingle partition with OS X Base System that is the size of my HD (1 TB), see picture 1. This new disk image cannot be partitioned: when I hit the + sign in the partition screen, nothing happens. In the Disk Utility, the options for erase, restore and unmount are all unavailable (see picture 2), I imagine that's because you normally cannot do any of these on the OS X Base System disk. This disk is also locked, so I cannot re-install High Sierra (see picture 3).

I've researched on the internet and a lot of people made this mistake. Most of them where able to either erase or re-install the system, but I'm at a dead end, as I don't have any of these options available. I don't know what else to try. Does anyone know how to fix this? Thanks!

Yes. When selecting that first entry (called APPLE HDD ST1000LM024 Media) and going into the Partition option, what I see is what I've posted on Picture 2 of the original post: pressing the + sign to create a new partition doesn't work and it shows that the only partition available is the OS X Base System, that is the size of the HD (1 TB). Also, when selecting it, the options Erase, Restore and Unmount are not available.

I can change the size in the dialog, but the "Apply" button doesn't come active. I can also change the name of the partition (I tried to change it to "Macintosh HD", for example). When I do it, the "Apply" button becomes active, but when I click it, it returns an error message saying that changes cannot be applied.

OMG, thank you guys, it worked! So here was the problem: I was going to the "regular" recovery screen, instead of the Internet Recovery one. I was pressing the right buttons, but not for long enough (I would just press it and release real quick). Thanks!

I suspect you are looking at the installer disk image that is part of the installation system. Have you tried restarting the computer to see if the installer will pick up and continue? If the installer does not continue then get yourself back into the Recovery HD. Click on the Install OS X option in the Utility Menu and click on the Continue button. You may be asked for your Apple ID and/or Admin password so have them handy.

You jumped in with your replies to the OP and stepping over an already ongoing discussion. I answered replies I saw directed towards me. However, at the end, I sent out a reply that I see went to you instead of the OP. I reckon I clicked the wrong "Reply" button. Honestly, I didn't pay any attention to what you were posting.

Hi Kappy, thanks for the answer. Restarting the computer brings me back to the Recovery menu (as if I had restarted while pressing command + option + R). Trying to install OS X option doesn't work as well, as the only disk available is the OS X Base System one and the OS cannot be installed there.

Immediately after the chime sounds press and hold the command and r keys, keep them depressed until a spinning globe appears onscreen, when the boot (which will be long) completes go to Disk Utilities and check for changes. from start to end this is not fast, be patient.

You must have heard of the macOS base system, but do you know the exact function of the macOS Base System and how to fix some wrongs with the macOS base system? Don't worry; this post will help you learn more. Just keep reading.

macOS base system is the recovery partition on your Mac. When the user needs to reinstall macOS to play a role, this reinstallation of the system mainly occurs when the system does not work or needs to install a different version of macOS. Additionally, the macOS base system can troubleshoot and resolve Mac issues while users are using Disk Utility. If something goes wrong, the device is returned to its previous state by restoring from Time Machine.

The macOS base system is a read-only disk image about 2 GB in size that contains all the basic information your Mac needs to function correctly. The user cannot see the macOS base system on a regular boot, but when the user boots into Recovery Mode using Command + R on an Intel-based Mac, the base system does.

System failure is inevitable when we use a Mac. When your Mac keeps crashing, stopping, or popping up error messages, the device may need to use the base Mac system to assist in restoring or restoring your macOS.

Therefore, the macOS base system is only considered when the user attempts to restore, restore, or repair the Mac. The macOS base system essentially fixes our Mac's backup when the device is reinstalled with macOS.

Macintosh HD is what users launch when they turn on macOS on the device. The macOS base system is a separate volume that allows users to restore macOS to their Mac with just a few clicks when macOS fails to work correctly. The macOS base system is also a backup for users to repair their Macs, reinstall macOS, and use other low-level utilities.

Equipment can malfunction due to incorrect operation. But it is also possible for users to encounter errors when clicking on the macOS base system, such as showing that the drive is locked or out of space. Below, we will discuss the problems with the basic macOS system and will give solutions.

When we install macOS using the Mac virtual machine tool, we may encounter glitches like "Not enough free space on OS X Base System" on the device. We can fix this by wiping the container and adding a new partition to store the macOS installer. The following are the detailed steps:

Step 3. Name the partition, and select APFS as the Format for Mac running macOS 10.13 High Sierra or later. If your macOS version is earlier than macOS 10.13 High Sierra, choose "Mac OS Extended (Journaled)" instead. Select" GUID Partition Map" as the scheme.

Occasionally, a user may accidentally restore a Macintosh HD to the macOS base system and find the disk locked. The solution to this problem will be given below. Steps to resolve the "disk is locked" issue:

Step 4. If the device is macOS 10.13 High Sierra or later, you will need to name the drive Macintosh HD and make sure it is formatted as APFS. If the device is not this version, you must choose Mac OS Extended (Journaled). And use the GUID partition map as the scheme.

You may notice a volume called macOS Base System or Mac OS X Base System when accessing Disk Utility in Recovery mode, especially when you fail to install the Mac operating system. What is macOS Base System, and how to handle the problems with it under the Apple disk image Media? We will give you the answers in this post.

macOS Base System is the recovery partition on your Mac, which allows you to reinstall macOS when your system fails to operate, or a different macOS version needs to be installed. It also helps you troubleshoot and solve Mac problems with Disk Utility, and go back to a previous state by restoring from Time Machine.