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modprobe fails with "Operation not permitted"

my problem is to load os module overlay of the Centos 7.x (not compiled module), that normaly are signed... plus secure boot are not enabled (mokutil say "EFI variables are not supported on this ...
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1 vote

Debian testing + LTS kernel

You can try using one of the options below. I installed the LTS kernel¹ 5.15.49 ( linux-image-5.15.49-xanmod1 ) on 3 different machines and so far I haven't had a problem. XanMod Kernel - xanmod.org ...
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how to record(copy) the kernal log messages in a Linux kernel system crash

For a VM, it's pretty easy. Just add another serial console to the VM. e.g. with libvirt, something like: <serial type='file'> <source path='/var/lib/libvirt/consoles/vm-name.log'/...
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How to Change Default Boot Kernel of Pop OS 20.04

First, your system has now been updated to kernel 5.17.5, and 5.16.19 is now probably the old-kernel. Please show the output of sudo bootctl list. I don't use Pop OS myself, but as far as I've ...
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Using Debian Stretch to build 5.15.x kernel with zstd compression fails with incorrect parameters

Debian Stretch has zstd version 1.1.2, which lacks support for the -T0 option which the kernel uses (it instructs zstd to use all available cores). -T0 can be dropped without adversely affecting the ...
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Do config file in /boot has any role other than an information about the modules presence?

In addition to Stephen's answer I have to say that if your distro does that, that sounds old-fashioned and inefficient. The preferred way of storing the kernel configuration nowadays is the vmlinuz ...
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Do config file in /boot has any role other than an information about the modules presence?

Their only role is to provide the configuration of the corresponding kernel, for information purposes. They are not required for anything else. (Note that they don’t only provide information about the ...
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NMI received for unknown reason 20 — Do you have a strange power saving mode enabled?

Actually, this should have been a comment to @Simon Richter's accepted answer, as I don't understand how to implement it. However, with less than 50 I don't hav enough "reputation" to ...
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2 votes

Why the kernel continues to have Yama disabled?

Look at the timestamp of the message: This message is printed by the kernel during boot right at startup, to tell you, that its default configuration (which is not what sysctl.conf sets) is to have ...
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How to keep the kernel from accessing the journal on an ext4 partition?

By passing -o norecovery to mount, you could mount the filesystem without making use of the journal at all. Man page for mount, ext3 section: norecovery/noload Don't load the journal on mounting. ...
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Mention the CPU Family type in config to build Linux Kernel for a particular CPU architecture?

The only important kernel config setting is found under Processor type and features / Processor family sub menu. it will only impact on basic kernel compilation settings. (gcc's -march for instance) ...
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What is Alpine Virtual and how it different from Alpine Standard?

This was published after the other answers and expressly answers the OP's question: "How is the kernel "slimmed down" and how is it 'optimized for virtual systems'?": linux-lts is ...
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What is the equivalent of "task_struct" in linux's <linux/sched.h> for Mac OS?

I know nothing of Mac OS but… a couple about FreeBSD. Hope it will match. You got it right looking at the task_struct in Linux because it's the basic unit of scheduling in Linux. The basic unit of ...
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Ubuntu 21.04 hangs at "loading initial ramdisk" after kernel update with LUKS

Typing the (correct) LUKS password and confirming with enter - as if the dm-crypt promt were there - resulted in a regular boot, for me. (have experienced this on a current Debian (netinstall) as well ...
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Booting stops at Loading initial ramdisk

I get the 'loading initial ramdisk' message, too, using system encryption with LUKS and LVM. This happens for me on Debian (netinstall) as well as on Alpine Linux. To get past this, enter the (correct)...
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Dockers create user namespaces?

Docker creates namespaces. An lsns command before after docker run would show that there are extra user namespaces created.
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Linux-next kernel version of the kernel tree

Not quite; linux-next is described as the holding area for patches aimed at the next kernel merge window. It gives an indication of what’s likely to be in the next release, but a patch’s presence in ...
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Linux kernel BUG: scheduling while atomic: swapper/0/0/0x7fff0001

Any luck with this? I think I'm seeing something similar: Jun 02 11:50:34 three kernel: BUG: scheduling while atomic: swapper/0/0/0x00000002 Jun 02 11:50:34 three kernel: Modules linked in: rfcomm ...
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