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The File Filesystem (2021)

(mgree.github.io)
346 points wegwerff | 2 comments | 30 Apr 24 17:43 UTC | HN request time: 0.73s | source
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paulgb ◴[30 Apr 24 21:10 UTC] No.40216398[source]▶
This is really neat, but when I saw the headline I got excited that it was something I have been looking for / considering writing, and I figure the comments here would be a good place to ask if something like this exists:

Is there a FUSE filesystem that runs in-memory (like tmpfs) while mounted, and then when dismounted it serializes to a single file on disk? The closest I can find are FUSE drivers that mount archive files, but then you don't get things like symlinks.

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khc ◴[30 Apr 24 21:39 UTC] No.40216686[source]▶
does it have to be fuse? cant you mount a disk image with loopback
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1. metadat ◴[30 Apr 24 21:44 UTC] No.40216749[source]▶
But will the disk image be fully stored in memory? No.. not with loopback. Either that, or it won't be mutable in memory with commit on unmount.
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2. generalizations ◴[01 May 24 00:04 UTC] No.40218001[source]▶
Put the disk image inside a ramdisk and it's in memory. Write a script for saving to physical disk when dismounting, and you're done.