Disk or volume called "Update" appearing on my computer. Can/Should I eject it?

I've noticed a partition or disk or something of that nature called "Update" appearing on my computer. I have no idea what this thing is or what it's doing there. Here are the contents:


What is this drive? It's not appearing in Disk Utility. It says I have the option of safely ejecting it, but should I try doing so? Is this symptomatic of a problem I should be aware of?

MacBook Pro 13″

Posted on Jul 21, 2025 10:52 AM

Reply
Question marked as Top-ranking reply

Posted on Jul 22, 2025 09:47 AM

macOS includes an "Update" volume ever since macOS 10.15 Catalina. With later versions of macOS this APFS volume tended to be hidden by default and has morphed more into an APFS snapshot. The Update volume/snapshot is used by macOS to stage OS updates.


The only time I have ever seen macOS show the "Update" volume/snapshot to a user in the Finder is when an older version of macOS is booted alongside a newer version of macOS. The older OS doesn't know anything about this "Update" volume.....even if the OS does know about it, it may still not understand newer variations to it that a newer version of macOS may utilize. There is a lot of behind the scenes magic being performed by macOS to handle the newer complex boot drives (these layouts seem to change ever so slightly with each new major version of macOS).


If the "Update" volume is mounted under "/System/Volumes", then do not unmount it even if it is possible since macOS expects it to be there. If it is mounted under "/Volumes", then it is Ok to unmount it since it is not associated with the currently booted OS. According to the EtreCheck report you only have a single version of macOS installed to the internal SSD so do not unmount the "Update" volume.


General Rule: Unless you want to understand macOS a bit better, it is best not to go looking into folders outside of those in the "/Users" folder. Everything else belongs to the macOS system and should not be touched.

9 replies
Question marked as Top-ranking reply

Jul 22, 2025 09:47 AM in response to dggxam1

macOS includes an "Update" volume ever since macOS 10.15 Catalina. With later versions of macOS this APFS volume tended to be hidden by default and has morphed more into an APFS snapshot. The Update volume/snapshot is used by macOS to stage OS updates.


The only time I have ever seen macOS show the "Update" volume/snapshot to a user in the Finder is when an older version of macOS is booted alongside a newer version of macOS. The older OS doesn't know anything about this "Update" volume.....even if the OS does know about it, it may still not understand newer variations to it that a newer version of macOS may utilize. There is a lot of behind the scenes magic being performed by macOS to handle the newer complex boot drives (these layouts seem to change ever so slightly with each new major version of macOS).


If the "Update" volume is mounted under "/System/Volumes", then do not unmount it even if it is possible since macOS expects it to be there. If it is mounted under "/Volumes", then it is Ok to unmount it since it is not associated with the currently booted OS. According to the EtreCheck report you only have a single version of macOS installed to the internal SSD so do not unmount the "Update" volume.


General Rule: Unless you want to understand macOS a bit better, it is best not to go looking into folders outside of those in the "/Users" folder. Everything else belongs to the macOS system and should not be touched.

Jul 21, 2025 01:06 PM in response to dggxam1

If you are unaware of how system integrity protections were disabled, you'll want to address that.


That's a serious breach of your local software installation, if you yourself did not disable that feature.


macOS 15.2 is getting old. Consider an update to macOS 15.5.


Skype is, AFAIK, gone.


I'd not expect to generally need for the Seagate and LaCie add-on apps. If the HP printer supports AirPrint and if that AirPrint path works for your needs, I'd remove the HP add-ons. I'd remove the add-on anti-malware, as well. This all because this Mac has 8 GB, and the system activity looks like it wants more.



This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Disk or volume called "Update" appearing on my computer. Can/Should I eject it?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.