Linux

Common Problems 118614

Ubuntu 16.04 LTS PAM misconfiguration locks out local console login

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: 16.04 📖 ~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 & Cross-Refs […]

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Common Problems 115127

RHEL 8 dracut Initramfs Missing Driver After Storage Migration

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 & Cross-Refs References & Further […]

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How to Configure Unattended Upgrades on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

Initial Server Setup with Ubuntu 26.04 LTS

After spinning up a fresh Ubuntu 26.04 LTS server, a few essential steps harden the system, create a non-root administrative account, and prepare it for production workloads. This guide walks through every step from first login to a locked-down, up-to-date server. Tested and valid on: Ubuntu 26.04 LTS Prerequisites A fresh Ubuntu 26.04 LTS server […]

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Arch Linux — grafana-agent — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — grafana-agent — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202112-12 Related CVEs: CVE-2021-41090 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 0.21.0-1. Fixed in: 0.21.2-1. Group: AVG-2614. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Arch Linux — tensorflow — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — tensorflow — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202012-22 Related CVEs: CVE-2020-26271 CVE-2020-26270 CVE-2020-26269 CVE-2020-26268 CVE-2020-26267 CVE-2020-26266 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 2.4.0rc4-2. Fixed in: 2.4.0-1. Group: AVG-1348. Table of contents Symptom & Impact Environment […]

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Oracle Linux 8 — spice — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — spice — vulnerability — patch and remediation guide (ELSA-2021-1924)

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1924 Related CVEs: CVE-2021-20201 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — mariadb:10.3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mariadb:10.3 — security and stability fixes — required update (ELSA-2022-6443)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6443 Related CVEs: CVE-2022-27376 CVE-2022-27378 CVE-2022-32085 CVE-2021-46661 CVE-2022-27387 CVE-2022-27456 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Gentoo Linux — x11-libs/cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — x11-libs/cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202408-09 Related CVEs: CVE-2019-6461 CVE-2019-6462 CVE-2020-35492 Upstream summary: Multiple vulnerabilities have been discovered in Cairo. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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