Anyone can give me some insight about this file

[tosbsas]

Today I found this 15 Gb file on my HDD when using the disk utility

 

[tosbsas]

for non Germans - it says system snapshot com.apple.os.update .......

Can this be deleted?

 

[svanstrom]

for non Germans - it says system snapshot com.apple.os.update .......

Can this be deleted?

Just ignore it: https://support.apple.com/en-us/HT204015

 

[Weaselboy]

What you highlighted there is the operating system. So no, it cannot be deleted.

 

[tosbsas]

Just ignore it: https://support.apple.com/en-us/HT204015

that's not time machine - it says update, TM snapshots have been deleted

 

[tosbsas]

What you highlighted there is the operating system. So no, it cannot be deleted.

uyyy ok

 

[svanstrom]

that's not time machine - it says update, TM snapshots have been deleted

Ah, ok, I guess I reacted to "snapshot" too quickly.

Then it's just your regular ol' Big Sur OS doing it's thing. 😅

 

[Quackers]

It's sort of a system snapshot, not a TM snapshot.

 

[tosbsas]

Yes. And thats the System? I thought That the System was on the First Partition. Como from Windows this Looks like a leftover from an Update

 

[Quackers]

The system is on the first volume but it's not mounted which is why it's greyed out.
That system volume is not writable so cannot be changed (without jiggery pokery).
The system you see when your OS loads is a "snapshot" of the system volume together with your Data volume.
Or that's how I look at it
The point is you can't mess up your actual system partition - only the snapshot.

 

[svanstrom]

Yes. And thats the System? I thought That the System was on the First Partition. Como from Windows this Looks like a leftover from an Update

Things are done a bit differently than what one might expect on MacOS nowadays; and it's actually all for some interesting security reasons.

And by "interesting" I mean "scary for people like want control/UN*X".

Protecting data at multiple layers - Discover - Apple Developer

Apple devices have multiple encryption features to safeguard the system and people’s data. Some capabilities are enabled by default, and developers only need to be aware of them in rare cases. Other features, such as Data Protection, can benefit from explicit design decisions to select the best...

developer.apple.com

 

[tosbsas]

Whooow ok. Highly interesting. As I Said - coming from Windows thats a file I would delete fast Rest of an Update

This seems to describe the reason for this partition

SSV helps prevent tampering with any Apple software that is part of the operating system. Additionally, it makes macOS Software Update more reliable and much safer. SSV utilizes APFS snapshots, so if an update cannot be performed, the old system version can be restored without reinstallation.