Top 10 Embedded Linux Projects to Try in 2024: Innovative Ideas for Developers
Explore top embedded Linux projects: build custom Yocto bootloaders, smart home IoT gateways, camera vision nodes, and real-time kernel controllers.
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Flash Yocto Images to Raspberry Pi SD Card Using DD: Step-by-Step Guide
Flash custom Yocto Linux build images to Raspberry Pi SD cards: identify /dev/sdX disk nodes, execute dd bs=4M status=progress, and verify boot partition.
Use hexedit to View and Edit Binary Files in Hexadecimal
View and edit raw binary ELF files using hexedit terminal utility: inspect byte offsets, edit ASCII strings, and patch executable byte patterns.
Delete first few characters in each line in a text file using VI
Delete the first N characters of every line in Vim / Vi editor: use visual block mode (Ctrl + v), execute :%s/^...//, or use sed 's/^.\{3\}//'.
Resolve: Media Player Stops / Hangs the Ubuntu Linux while Video Playing
Fix media player video playback freezes on Ubuntu Linux: configure VA-API / NVDEC hardware acceleration, switch Xorg vs Wayland, and update Mesa.
Linux Command “Top”: Understanding and Using the System Monitoring Tool
Master the Linux top command: monitor real-time CPU usage, memory utilization (VIRT, RES, SHR), process states, load averages, and sort by PID.
Understanding Very basic C Program and its execution in Ubuntu Linux – Part 1
Understand C program execution mechanics in Linux: trace preprocessing (#include), GCC compilation (-S), assembly (-c), linking (-o), and _start.
Sign kernel module on UEFI Secure boot enabled Ubuntu
Sign out-of-tree kernel modules (.ko) on UEFI Secure Boot Ubuntu: generate X.509 MOK keys using openssl, enroll MOK via mokutil, and sign modules.
Identify and Set Maximum values for ABS_X/ABS_Y OR ABS_MT_POSITION_X / ABS_MT_POSITION_Y
Configure Linux input event maximum axis bounds for ABS_X/ABS_Y and ABS_MT_POSITION_X/ABS_MT_POSITION_Y touchscreen drivers using evtest and libinput.
How Yocto build Software Package from source code
Understand Yocto Project package compilation stages: trace do_fetch, do_unpack, do_patch, do_configure, do_compile, and do_install in BitBake.
A Linux Port Is Listening. Can Anyone Actually Reach It?
A listening socket proves that something is waiting inside one network namespace. It does not prove the service is reachable through a firewall, container boundary, router, or cloud network policy.
How to Login as Different User in Linux ?
Linux is a multi user operating system which means at one point in time, one or more … Read more
Fix Wi-Fi Not Detected on Ubuntu: A Diagnostic Guide
A missing Wi-Fi menu, a missing adapter, and one missing network are different failures. Follow this evidence-first Ubuntu workflow to locate the broken layer before restarting services or changing drivers.
Fix dpkg Dependency Errors on Ubuntu Safely
Prefer `apt install ./package.deb` so Ubuntu can resolve repository dependencies in one transaction. If `dpkg -i` already left packages unpacked or unconfigured, diagnose the exact state, repair it without blind removals, and verify the package database.
Identify a Device by IP Address on Linux Safely
An IP address is a starting clue, not a complete device identity. Correlate Linux routing and neighbour data with DNS, DHCP or cloud inventory, then use the smallest authorized Nmap probe that answers the remaining question.
Resume Large File Transfers over Unstable SSH
Use `rsync` over SSH as a restartable transfer protocol: keep partial data, rerun the same command after a disconnect, publish only after checksum verification, and avoid exposing a temporary HTTP server.
Safely Rename Parts of Filenames and File Content
Renaming `memory_map.c` to `memory_mapping.c` and changing identifiers inside source files are separate operations. This guide previews both, handles unusual filenames, refuses collisions, keeps backups, and makes rollback practical.
Convert AVI to MP4 with HandBrake on Ubuntu
A practical Ubuntu workflow for turning AVI and other supported sources into broadly compatible MP4 video. Use HandBrake’s official Flatpak, choose a preset intentionally, protect the source, and verify video, audio, subtitles, and playback.
Fix “No Address Associated with Hostname” on Linux
The error means the resolver could not return a usable address for the requested name and address family. Diagnose the same NSS path the application uses before editing `/etc/hosts`, changing DNS, or flushing caches.
Connect to an Amazon EC2 Linux Instance with SSH
Connect to an EC2 Linux instance without weakening its security: verify the instance and host key, protect the SSH private key, choose the correct AMI username and address, restrict ingress, and diagnose timeout versus authentication failures.
Install Apache on Amazon Linux 2023 EC2
Deploy Apache HTTP Server on an Amazon Linux 2023 EC2 instance, verify each network layer, publish content with controlled permissions, and understand what changes for legacy Amazon Linux 2 hosts.
Monitor CPU, Memory, I/O and Processes on Linux
A high load average, low “free” memory, or busy disk is a clue—not a root cause. Use interval-based Linux tools to separate CPU saturation, memory reclaim, swap, storage latency, network load, process behavior, and cgroup pressure before restarting or killing anything.
Find Linux Disk Usage with ncdu Safely
ncdu turns a recursive disk-usage scan into a fast terminal browser, but its delete key deserves the same respect as `rm`. Start read-only, stay on the intended filesystem, export remote scans for offline analysis, and confirm why `df`, `du`, and ncdu may report different numbers.
Linux USB Composite Gadget Architecture: ConfigFS, Drivers, and Execution Flow
Explore Linux USB composite gadget architecture: ConfigFS setup scripts, struct usb_function kernel driver flows, UDC bindings, and endpoint allocation.