Boot Startup

Common Problems 116424

Ubuntu 24.04 LTS – snap applications fail because snapd is inactive – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 31 October 2025 Affected versions: Ubuntu 24.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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CentOS Stream 9 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 October 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:2867 Related CVEs: CVE-2025-0624 CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735 CVE-2022-28736  +12 more Upstream summary: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable […]

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How to Install Composer on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Composer on Debian 13

Introduction Deploying install composer on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you have a […]

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How to Configure auditd Logging on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure auditd Logging on Oracle Linux 10

Introduction Setting up configure auditd logging on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure auditd Logging on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How to Sync Time with Chrony on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Sync Time with Chrony on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying sync time with chrony on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Sync Time with Chrony on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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Common Problems 116493

Ubuntu 24.04 LTS – grub-install fails because EFI system partition is full

🟠 High   ⏱ 5–30 min  Last verified: 30 October 2025 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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How to Use rsync over SSH for Backups on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Use rsync over SSH for Backups on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up use rsync over ssh for backups on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the […]

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Common Problems 113959

RHEL 10 – new kernel installed but system still boots old kernel – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 October 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related […]

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How to Install Vault by HashiCorp on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Vault by HashiCorp on Debian 13

Introduction Deploying install vault by hashicorp on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you […]

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How to Limit Container Resources with cgroups on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Limit Container Resources with cgroups on Debian 13

Introduction How to Limit Container Resources with cgroups on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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