VACFS(4)

πŸ“¦ version 0_git20260208, in alpine 3.24, arch rolling, nixos 26.05, nixpkgs unstable

πŸ’… VACFS(4) β€” like, the vacfs manual page, bestie

okay so real talk: this is vacfs(4) from the Kernel Interfaces Manual, and it's genuinely one of those pages you read once and suddenly everything makes sense. stay with me πŸ’–


✨ NAME ✨

vacfs β€” a Venti-based file system. that's it, that's the vibe. πŸ¦‹


🌸 SYNOPSIS 🌸

vacfs [ -dip ] [ -h host ] [ -m mtpt ] [ -s srvname ] [ -M mem ] vacfile

πŸŽ€ DESCRIPTION πŸŽ€

So vacfs takes the file system that vac(1) created and interprets it so it can be mounted into a Plan 9 file hierarchy. iconic behavior honestly. πŸ”₯

The data for the file system lives on a Venti server, and the root fingerprint is specified in vacfile. yes bestie, that's where it all comes from ✨

Now the part where I have to be honest with you: vacfs is currently rather limited. like, lowkey held together with hope:

  • access is read-only
  • clients are not authenticated
  • groups are assumed to contain a single member with the same name

These restrictions should eventually be removed. until then we simply vibe with them πŸ™ˆ


πŸ’… OPTIONS πŸ’…

okay here's the whole lineup, no skipping, we're not doing that here 🫢

  • -d β€” print debugging information to standard error. messy but informative, yk? πŸ‘‘
  • -h host β€” the network address of the Venti server. the default is taken from the environment variable venti. if that variable does not exist, then the default is the metaname $venti. yes, that's the whole rule, no cap ⭐
  • -i β€” use file descriptors 0 and 1 as the 9P communication channel rather than create a pipe. direct line, main character energy πŸ’€
  • -m mtpt β€” the location to mount the file system. the default is not to mount. literally the default is "don't" 😭
  • -p β€” disables permission checking. yes queen, ignore the rules 🌈
  • -s β€” the name of the 9P service to post. the default is vacfs.name, where name is vacfile without any directory name or extension. cute little derivation, slay πŸŽ€
  • -M mem β€” the amount of memory, in bytes, allocated to the block cache. the default is 16M. budget queen πŸ’œ

πŸ¦‹ SOURCE πŸ¦‹

/src/cmd/vac

🧚 SEE ALSO 🧚

iykyk πŸ’–


ngl bestie, re-read the DESCRIPTION before you go mounting anything β€” read-only, no client authentication, single-member groups. it's giving "early days" and we respect it 😌

and that's the whole page, mwah πŸ’‹ this was VACFS(4) from the Kernel Interfaces Manual, section 4 β€” go forth and mount responsibly, bestie πŸŒΈπŸ’…βœ¨