Hdiutil is deprecated, how to create RAM disks

Tech Support
1

Starting with Golden Gate, `hdiutil’ will be deprecated.

I use it to create case-sensitive RAM disks, so I can check for regressions or problems with my software. The commands are:

diskutil erasevolume 'Case-sensitive HFS+' DafiVolume

hdiutil attach -nomount ram://1048576

But there’s no news of alternatives via diskutil or other commands.

Is it just me who can’t find anything, or is Apple really removing them but not offering alternatives?

PS
I realize there are only three or four of us in the world who do this.

2

I have never had the need to create a RAM disk since, well, 1996 or so. Didn’t even know you could use hdiutil for that, but it seems that train just went by me.

3

Gemini says this, I don’t have access to a Golden Gate installation right now, but everything seems even slightly simpler:

diskutil erasevolume HFS+ ‘RAM Disk’ $(diskutil image attach ram://2g)

This is in line with the guidance provided in the article you mentioned, that “diskutil image” now supersedes the older hdiutil.

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4

Just a note that you’ll still be good for at least a year. Deprecated ≠ removed.

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5

Oh oh, Gemini is better than Claude, this works on Golden Gate and Sequoia

diskutil erasevolume 'Case-sensitive HFS+' 'MyRamDisk' $(diskutil image attach ram://1048576)
6

Absolutely true! But if possible, why not adapt in time? If the solution exists (and fortunately in this case it does) and it’s non-invasive, I prefer to move forward.

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