damn is this tmpfs thing on #macOS stupid.
turns out:
> sudo mount -t tmpfs -- -i ~/tmp
as well as
> sudo mount -t tmpfs -- -- ~/tmp
WORK. They currently pass the arguments along as is to the mount_tmpfs command and that one doesn't like the string "tmpfs" as its first argument.
And apple for whatever reason assumed that this would work (maybe it did in the past, don't know):
> sudo mount -t tmpfs ~/tmp
but it doesn't as mount doesn't allow that syntax.
Finally read the reply #Apple sent me to my report of #tmpfs mounts being broken there.
Well appears they're a bit confused about the mount syntax themselves but there is a working alternative:
> sudo mount_tmpfs ~/tmp
Editando! Después de dos días grabando para el canal de Youtube de #juncotic, y para el curso de Hardening Linux, tocó el moment de editar.
Pronto nuevo video en el canal!
¿Que no se han suscrito todavía? 👇
#juncotic #gnu #linux #video #clase #educacion #curso #youtube #tmpfs #hardening #optimization
Sigo jugando con la memoria en #linux 😃
En un sistema con 16GiB de RAM he configurado un mountpoint con #tmpfs para la cache de #firefox.
En otro sistema, con 8GiB de RAM, he configurado un mountpoint con #zram para la cache de #brave, porque la memoria es más escasa.
Por el momento ambos van súper fluidos!
Lo voy a testear, y luego sacaré mis conclusiones, y publicaré resultados en el blog de #juncotic y en el canal de youtube.
Por si quieren sumarse 👇
In NixOS, the sandbox feature during builds ensures reproducibility by isolating the build process from the host system. The Filesystem Hierarchy Standard (FHS) is generally not followed by NixOS natively, as everything is stored in the /nix/store with symlinks for compatibility, which can cause issues for programs expecting a standard FHS layout. The TMPDIR environment variable is relevant to how applications handle temporary files, and its behavior can differ between the default system environment and specific Nix shells.
Sandboxing and FHS
Sandboxing The Nix package manager strictly sandboxes package builds to guarantee that the resulting package is reproducible and only depends on specified inputs. This isolation means the build environment is a minimal, clean slate, preventing access to most host system files or non-declared dependencies.
TMPDIR environment variable specifies where an application should create temporary files. Its interaction with the Nix sandbox and FHS environments can lead to issues:
Default Behavior On a standard NixOS system, TMPDIR might not be set by default in the global system environment.
/* Create a writable /tmp in the chroot. Many builders need
this. (Of course they should really respect $TMPDIR
instead.) */
#nixos sandbox #tmpfs
https://github.com/NixOS/nix/blob/340f831ebe9d74659b84667b96251b7ab0edd09d/src/libstore/build/local-derivation-goal.cc#L609-L614
besides #lix has something tempting for everyone including nixos
https://github.com/NixOS/nix/issues/13462#issuecomment-3137584843
Spotify taking too much disk space? Here's how to fix Spotify cache bloat using tmpfs (RAM) on Debian and Ubuntu Linux.
Step-by-Step Guide: https://ostechnix.com/move-spotify-cache-tmpfs-debian-ubuntu/
Why #GIMP #AppImage #crashes on #Linux then trying to export / #save files to #tmpfs? A #bug ?
Klaus Frank
Diego Córdoba 🇦🇷
HoldMyType
OSTechNix
Sami Lehtinen/tmp/.mount_GIMP-3ChpMMA/usr/lib/x86_64-linux-gnu/gimp/3.0/plug-ins/script-fu/script-fu: fatal error: GIMP crashed
(script-fu:34154): LibGimp-WARNING **: 13:15:26.695: script-fu: gimp_flush(): error: Broken pipe
fish: Job 1, 'GIMP-3.0.4-x86_64.AppImage --ve…' terminated by signal SIGSEGV (Address boundary error)
After some testing, and getting crazy about it, I debugged moar. It seems that the problem is a .json file in the tmpfs dir, it seems to crash GIMP. There’s clearly something very wrong.
Just for fun I created this file: gimp-denial-of-service-attack.json
Feel free to use that to troll colleagues. Place it is some directory they’re likely going to use with GIMP, just for lulz. - Don’t ask me, why it crashes GIMP. #json #gimp #crash
Depuis quelques mois que j'ai un ordinateur avec un peu de RAM en trop, je me suis accordé un petit luxe : monter une partition de 8Go en #tmpfs dans mon home.
J'y mets les documents temporaires de travail pour la session (téléchargements à renvoyer par mail, PDF à lire, etc.), afin de ne pas me retrouver petit à petit avec une pile de documents de plus en plus grande, vu que le contenu du dossier disparaît à chaque redémarrage de l'ordinateur.
Parleur
Unofficial LowEndBox Bot
ioSyd