Questions tagged [linux]
These questions are about Linux in general – NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the “linux” tag.
39,053 questions
1 vote
0 answers
11 views
U-Boot signature verification using ECDSA fails
I'm trying to use ECDSA (prime256v1) for signature verification in U-Boot (git tag "v2025.10"). I used the sample configuration from Verified Boot on the Beaglebone Black as a template. ...
- 11
0 votes
0 answers
24 views
How can I automatically set some CPU parameters (via `/sys/devices/system/cpu/...``) when the system boots?
DISTRO: Fedora 41 KDE GOAL: Im trying to automatically set some cpu parameters (per-CPU max frequency, governors, energy policy, etc.) during my boot process. I wrote a script to do this (it lives at /...
0 votes
1 answer
42 views
Curiosity: it looks like a second Power-on self test or init (like the BIOS POST does at boot) is happening after the GRUB O.S. selection? What is it?
Glad to a new keyboard and a mouse that have plenty of lights now, I've noticed this: When I turn on my computer the BIOS Power-On Self Test (POST) happens. And I can see that my mouse and keyboard ...
- 2,467
0 votes
1 answer
47 views
Linux - how to hibernate and then start the computer again?
I have a system where I dual-boot linux and windows. When I switch between them, I usually do the following: Hibernate the old os Press the power button Select the new os in grub However, I would ...
- 127
0 votes
0 answers
29 views
SSH Timeout when trying to connect to Oracle Cloud
I made a Compute Instance with Oracle Cloud because I'm trying to run a python code 24/0. I have tried connecting to it all day with no results. Here's what went off in the PowerShell:PS C:\Users\...
0 votes
1 answer
27 views
Kernel message "unchecked MSR access error: RDMSR from ... microcode_loader_disabled..." in Linux 6.6.113 on AMD Geode CPU
I got confused when the dmesg output of an embedded system started with these messages: [ 0.000000] unchecked MSR access error: RDMSR from 0x8b at rIP: 0xc156f2b0 (microcode_loader_disabled+0x3b/...
- 1,777
0 votes
0 answers
26 views
Packet Demodulation error in GNU Radio for Hackrf SDR - SBand Radio set up connection. [SBand Radio Tx , SDR Rx]
I have a set up in my lab. I am trying to get the S-band chain of my ground station working. My set up is described as Computer connected to a HackRf SDR via the USB and also connected to the Sband ...
4 votes
0 answers
62 views
Diagnosing failure to properly suspend in Linux
In trying to figure out why my laptop was losing so much battery charge when closed, I'm seeing logs that suggest it's not staying in suspended state at all. I'm looking for help diagnosing why this ...
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