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abbbi / nullfsvfs

a virtual black hole file system that behaves like /dev/null
GNU General Public License v3.0
290 stars 12 forks source link

Can't use it on Ubuntu 18.04.6 LTS #15

Closed cheretbe closed 2 years ago

cheretbe commented 2 years ago

Hi @abbbi First of all, thank you for this great project! Occasionally it helps me to tackle network issues. Today I tried to use it once again and encountered the following problem.

# uname -a
Linux homemain 4.15.0-192-generic #203-Ubuntu SMP Wed Aug 10 17:40:03 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
# make -C /lib/modules/$(uname -r)/build M=$PWD modules_install INSTALL_MOD_DIR=kernel/fs/nullfs
make: Entering directory '/usr/src/linux-headers-4.15.0-192-generic'
  DEPMOD  4.15.0-192-generic
make: Leaving directory '/usr/src/linux-headers-4.15.0-192-generic'
# depmod
# modprobe  nullfs
modprobe: FATAL: Module nullfs not found in directory /lib/modules/4.15.0-192-generic

Tried both 0.12.1 and master branch. Do you have any suggestions?

abbbi commented 2 years ago

likely an issue with the modules installation path. check where it was installed in /lib/modules. otherwise simply load directly using insmod

on ubuntu its probably better you build via dpkg-buildpackage, see: https://github.com/abbbi/nullfsvfs#debian-package

cheretbe commented 2 years ago

/lib/modules/4.15.0-192-generic/kernel/fs/nullfs/ was empy. Manual copying of nullfs.ko solved the issue. Thanks for the help :handshake: