Explicit kernel module load at startupsystemd: automate modprobe command at boot timeWhat does 'make...
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Explicit kernel module load at startup
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I'm using grsecurity kernel which disallows automatic kernel load thus several systemd services don't work. After manually loading modules with modprobe and restarting module everything works correctly but it's quite dirty solution. I'd like to do it "properly" during startup.
OS is Arch linux with grsec kernel.
kernel-modules startup grsecurity
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
add a comment |
I'm using grsecurity kernel which disallows automatic kernel load thus several systemd services don't work. After manually loading modules with modprobe and restarting module everything works correctly but it's quite dirty solution. I'd like to do it "properly" during startup.
OS is Arch linux with grsec kernel.
kernel-modules startup grsecurity
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
1
Could you possibly rewrite parts of theinitscript that's found in the initramfs to perform the steps you require?
– Hydranix
Feb 4 '17 at 4:28
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41
add a comment |
I'm using grsecurity kernel which disallows automatic kernel load thus several systemd services don't work. After manually loading modules with modprobe and restarting module everything works correctly but it's quite dirty solution. I'd like to do it "properly" during startup.
OS is Arch linux with grsec kernel.
kernel-modules startup grsecurity
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
I'm using grsecurity kernel which disallows automatic kernel load thus several systemd services don't work. After manually loading modules with modprobe and restarting module everything works correctly but it's quite dirty solution. I'd like to do it "properly" during startup.
OS is Arch linux with grsec kernel.
kernel-modules startup grsecurity
kernel-modules startup grsecurity
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
asked Feb 4 '17 at 4:07
LapsioLapsio
606719
606719
1
Could you possibly rewrite parts of theinitscript that's found in the initramfs to perform the steps you require?
– Hydranix
Feb 4 '17 at 4:28
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41
add a comment |
1
Could you possibly rewrite parts of theinitscript that's found in the initramfs to perform the steps you require?
– Hydranix
Feb 4 '17 at 4:28
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41
1
1
Could you possibly rewrite parts of the
init script that's found in the initramfs to perform the steps you require?– Hydranix
Feb 4 '17 at 4:28
Could you possibly rewrite parts of the
init script that's found in the initramfs to perform the steps you require?– Hydranix
Feb 4 '17 at 4:28
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41
add a comment |
2 Answers
2
active
oldest
votes
It'll depend somewhat on your init system (systemd, or ..)
But the options are:
kernel command line parameter
modules_load=
/etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
For desktop/laptops, people usually expect to be able to plug in devices and for the driver modules to load.
If this isn't your use case, you could also look at compiling the kernel with the relevant module code statically linked in (so no module loading occurs at all) and disabling the module system entirely. There are limits on kernel binary size (limiting number of modules that can be compiled statically) on 32-bit architectures.
See : "make localmodconfig"
Related : using sysctl to prevent further module loading
Related: Fedora, loading modules at startup
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
add a comment |
Modules are automatically loaded after kernel boot by placing a conf file in /etc/modules-load.d/mymodules.conf.
# Modules to load.
mymodule.ko
That's it, you're good to go.
You may also blacklist modules that are not to be loaded. The usual place for blacklisted modules is in /etc/modprobe.d. Create a conf file here, and list the
modules that are never to be loaded.
# Modules to prevent from loading.
blacklist mybadmodule.ko
answered 9 mins ago
rickfoosusarickfoosusa
1013
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
It'll depend somewhat on your init system (systemd, or ..)
But the options are:
kernel command line parameter
modules_load=
/etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
For desktop/laptops, people usually expect to be able to plug in devices and for the driver modules to load.
If this isn't your use case, you could also look at compiling the kernel with the relevant module code statically linked in (so no module loading occurs at all) and disabling the module system entirely. There are limits on kernel binary size (limiting number of modules that can be compiled statically) on 32-bit architectures.
See : "make localmodconfig"
Related : using sysctl to prevent further module loading
Related: Fedora, loading modules at startup
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
add a comment |
It'll depend somewhat on your init system (systemd, or ..)
But the options are:
kernel command line parameter
modules_load=
/etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
For desktop/laptops, people usually expect to be able to plug in devices and for the driver modules to load.
If this isn't your use case, you could also look at compiling the kernel with the relevant module code statically linked in (so no module loading occurs at all) and disabling the module system entirely. There are limits on kernel binary size (limiting number of modules that can be compiled statically) on 32-bit architectures.
See : "make localmodconfig"
Related : using sysctl to prevent further module loading
Related: Fedora, loading modules at startup
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
add a comment |
It'll depend somewhat on your init system (systemd, or ..)
But the options are:
kernel command line parameter
modules_load=
/etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
For desktop/laptops, people usually expect to be able to plug in devices and for the driver modules to load.
If this isn't your use case, you could also look at compiling the kernel with the relevant module code statically linked in (so no module loading occurs at all) and disabling the module system entirely. There are limits on kernel binary size (limiting number of modules that can be compiled statically) on 32-bit architectures.
See : "make localmodconfig"
Related : using sysctl to prevent further module loading
Related: Fedora, loading modules at startup
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
It'll depend somewhat on your init system (systemd, or ..)
But the options are:
kernel command line parameter
modules_load=
/etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
For desktop/laptops, people usually expect to be able to plug in devices and for the driver modules to load.
If this isn't your use case, you could also look at compiling the kernel with the relevant module code statically linked in (so no module loading occurs at all) and disabling the module system entirely. There are limits on kernel binary size (limiting number of modules that can be compiled statically) on 32-bit architectures.
See : "make localmodconfig"
Related : using sysctl to prevent further module loading
Related: Fedora, loading modules at startup
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
answered Aug 22 '17 at 9:03
jmulleejmullee
37815
37815
add a comment |
add a comment |
Modules are automatically loaded after kernel boot by placing a conf file in /etc/modules-load.d/mymodules.conf.
# Modules to load.
mymodule.ko
That's it, you're good to go.
You may also blacklist modules that are not to be loaded. The usual place for blacklisted modules is in /etc/modprobe.d. Create a conf file here, and list the
modules that are never to be loaded.
# Modules to prevent from loading.
blacklist mybadmodule.ko
answered 9 mins ago
rickfoosusarickfoosusa
1013
add a comment |
Modules are automatically loaded after kernel boot by placing a conf file in /etc/modules-load.d/mymodules.conf.
# Modules to load.
mymodule.ko
That's it, you're good to go.
You may also blacklist modules that are not to be loaded. The usual place for blacklisted modules is in /etc/modprobe.d. Create a conf file here, and list the
modules that are never to be loaded.
# Modules to prevent from loading.
blacklist mybadmodule.ko
answered 9 mins ago
rickfoosusarickfoosusa
1013
add a comment |
Modules are automatically loaded after kernel boot by placing a conf file in /etc/modules-load.d/mymodules.conf.
# Modules to load.
mymodule.ko
That's it, you're good to go.
You may also blacklist modules that are not to be loaded. The usual place for blacklisted modules is in /etc/modprobe.d. Create a conf file here, and list the
modules that are never to be loaded.
# Modules to prevent from loading.
blacklist mybadmodule.ko
answered 9 mins ago
rickfoosusarickfoosusa
1013
Modules are automatically loaded after kernel boot by placing a conf file in /etc/modules-load.d/mymodules.conf.
# Modules to load.
mymodule.ko
That's it, you're good to go.
You may also blacklist modules that are not to be loaded. The usual place for blacklisted modules is in /etc/modprobe.d. Create a conf file here, and list the
modules that are never to be loaded.
# Modules to prevent from loading.
blacklist mybadmodule.ko
answered 9 mins ago
rickfoosusarickfoosusa
1013
answered 9 mins ago
rickfoosusarickfoosusa
1013
answered 9 mins ago
rickfoosusarickfoosusa
1013
answered 9 mins ago
rickfoosusarickfoosusa
1013
1013
add a comment |
add a comment |
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1
Could you possibly rewrite parts of the
initscript that's found in the initramfs to perform the steps you require?– Hydranix
Feb 4 '17 at 4:28
Well.. I don't think i know any way to make it update-persistent
– Lapsio
Feb 4 '17 at 4:33
A very dirty way that I've used once before what to set the immutable flag on the init file. You can always create a custom hook file and add it to the mkinitcpio.conf
– Hydranix
Feb 4 '17 at 4:41