So I just ran guix pull & reconfigure.
joshua@dobby /run/booted-system/kernel/lib/modules$ guix describe
Generation 36 Feb 20 2020 10:11:40 (current)
jmacs 65b1737
repository URL: https://notabug.org/jbranso/guix-packages.git
branch: master
commit: 65b17377136095935ef6da3a836142d56fecce2b
guix bf8dfe3
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: master
commit: bf8dfe3df025e4ac80cccb87497b4f072ba10e2a
So I feel like Jack beat me to it,
but the contents of /proc/sys/kernel/modprobe are:
#+BEGIN_SRC sh
$ cat /proc/sys/kernel/modprobe
/gnu/store/daq5zs7ni529zh3xxgyhidna52wa17js-modprobe
#+END_SRC
#+BEGIN_SRC sh
cat /gnu/store/daq5zs7ni529zh3xxgyhidna52wa17js-modprobe
#!/gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/bin/guile
--no-auto-compile
!#
(begin (setenv "LINUX_MODULE_DIRECTORY"
"/run/booted-system/kernel/lib/modules") (apply execl
"/run/current-system/profile/bin/modprobe" (cons
"/run/current-system/profile/bin/modprobe" (cdr (command-line)))))~ $
#+END_SRC
Then I was just poking around.
#+BEGIN_SRC sh
~ $ cat /run/booted-system/kernel/lib/modules
Read error: Is a directory, /run/booted-system/kernel/lib/modules
~ $ cd /run/booted-system/kernel/lib/modules
/run/booted-system/kernel/lib/modules $ ls
5.4.21-gnu
/run/booted-system/kernel/lib/modules $ cd 5.4.21-gnu/
/run/booted-system/kernel/lib/modules/5.4.21-gnu $ ls
build modules.alias modules.builtin modules.builtin.modinfo
modules.dep.bin modules.order modules.symbols source
kernel modules.alias.bin modules.builtin.bin modules.dep
modules.devname modules.softdep modules.symbols.bin
/run/booted-system/kernel/lib/modules/5.4.21-gnu $ cat modules.order
kernel/arch/x86/events/amd/power.ko
kernel/arch/x86/kernel/msr.ko
kernel/arch/x86/kernel/cpuid.ko
kernel/arch/x86/crypto/glue_helper.ko
kernel/arch/x86/crypto/des3_ede-x86_64.ko
kernel/arch/x86/crypto/camellia-x86_64.ko
kernel/arch/x86/crypto/blowfish-x86_64.ko
kernel/arch/x86/crypto/twofish-x86_64.ko
kernel/arch/x86/crypto/twofish-x86_64-3way.ko
... tons more modules...
kernel/drivers/gpu/drm/i915/i915.ko
kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko
#+END_SRC
You'll notice that my i915 graphics and e1000e (ethernet) driver is
listed in that directory.
On my working system, these were the modules that lspci -v showed I was
using:
#+BEGIN_SRC sh :results output :exports both
lspci -v | grep "Kernel driver in"
#+END_SRC
#+RESULTS:
#+begin_example
Kernel driver in use: i915
Kernel driver in use: e1000e
Kernel driver in use: uhci_hcd
Kernel driver in use: uhci_hcd
Kernel driver in use: uhci_hcd
Kernel driver in use: ehci-pci
Kernel driver in use: snd_hda_intel
Kernel driver in use: pcieport
Kernel driver in use: pcieport
Kernel driver in use: pcieport
Kernel driver in use: pcieport
Kernel driver in use: pcieport
Kernel driver in use: uhci_hcd
Kernel driver in use: uhci_hcd
Kernel driver in use: uhci_hcd
Kernel driver in use: ehci-pci
Kernel driver in use: lpc_ich
Kernel driver in use: ata_piix
Kernel driver in use: i801_smbus
Kernel driver in use: yenta_cardbus
Kernel driver in use: firewire_ohci
#+end_example
On the broken system, I am able to load my i915 and e1000e driver, but I
am not able to load yenta_cardbus.
#+BEGIN_SRC sh
$ sudo modprobe yenta_cardbus
modprobe: FATAL: Module yenta_cardbus not found in directory
/run/booted-system/kernel/lib/modules/5.4.21-gnu
#+END_SRC
Sorry if I'm being repetitive. I am just wanting to help. :)
--
Joshua Branson
Sent from Emacs and Gnus
