Unable to get kernel-module for r1soft backup.

If you are trying to setup r1soft backups and getting errors like:

• Failed to get suitable module for this system: Failed to read directory open *some dir*: no such file or directory
• Failed to find headers at *some dir*
• Unable to find a valid source directory. Please install the kernel headers for your operating system

This article should help you fix this.

First, let's ensure that r1soft kernel module not loaded so we don't do unnecessary work. Type to your console and execute:

# lsmod | grep hcp 

if it's showing you something like:

# lsmod | grep hcp
hcpdriver 75664 4

Then you don't have to do anything, module is already loaded and all you need to do - start r1soft agent.

If you see empty output, then we really have to get the module. Basically we need to ensure that system have corresponding kernel-devel and kernel-headers packages:

# rpm -qa | grep kernel-headers-$(uname -r)
# rpm -qa | grep kernel-devel-$(uname -r)

If both commands giving you something like:

# kernel-devel-(your kernel version here).x86_64
# kernel-headers-(your kernel version here).x86_64

and if r1soft module still can't be build, than there should be something related to current kernel you are running, maybe it's beta or not supported by r1soft. Try to update to latest stable kernel -> reboot -> install kernel-devel and kernel-header -> try building module.

If you don't have modules installed, then we'll have to install them, but first — let's ensure that there are no packages for other kernels with:

# rpm -qa | grep -E 'kernel-headers|kernel-devel'

and if there are any, let's remove them:

# rpm -e kernel-header-xxxxx.elx.x86_64 –nodeps
# rpm -e kernel-devel-xxxxx.elx.x86_64 –nodeps

Repeat for everything you find.

After this, we are ready for installing missing packages:

# yum install kernel-devel kernel-headers

Once this done, try to get r1soft kernel module with:

# r1soft-setup --get-module

If r1soft module still can't be built, then there should be something related to the current kernel you are running, possibly it's beta or not supported by r1soft.

If you receive such an error during the build:

Failed to get suitable module for this system: Failed to build module: No builders found.

Please try to manually upload the latest version of the module and enable it.

[root@]# cd /lib/modules/r1soft/
[root@]# wget https://beta.r1soft.com/modules/CloudLinux_7h_x64/hcpdriver-cki-4.18.0-425.3.1.lve.3.el7h.x86_64.260.ko
--2024-04-13 13:33:29-- https://beta.r1soft.com/modules/CloudLinux_7h_x64/hcpdriver-cki-4.18.0-425.3.1.lve.3.el7h.x86_64.260.ko
Resolving beta.r1soft.com (beta.r1soft.com)... 198.64.248.204
Connecting to beta.r1soft.com (beta.r1soft.com)|198.64.248.204|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3113408 (3.0M)
Saving to: ‘hcpdriver-cki-4.18.0-425.3.1.lve.3.el7h.x86_64.260.ko’

100%[==============================================================================================================================================================>] 3,113,408 10.3MB/s in 0.3s

2024-04-13 13:33:29 (10.3 MB/s) - ‘hcpdriver-cki-4.18.0-425.3.1.lve.3.el7h.x86_64.260.ko’ saved [3113408/3113408]

[root@]# insmod hcpdriver-cki-4.18.0-425.3.1.lve.3.el7h.x86_64.260.ko
[root@]# lsmod |grep hcp
hcpdriver 90112 0

If there is no success, please try to update to latest stable kernel -> reboot -> install kernel-devel and kernel-header -> try building module.