Fix Ubuntu 20 Boot Error: UEFI Shell Mapping Table FSO Alias Issue | Startup-nsh Problem

In this video, I'll show you how to fix the common Ubuntu 20 boot error where your system gets stuck in UEFI Interactive Shell with "Mapping table FSO: Alias(s):CD0a0a::BLK3" errors. If you're seeing "Press ESC in 1 seconds to skip startup.nsh" and your Ubuntu won't boot properly, this tutorial will help you resolve the issue. 🔧 What we'll cover: - Understanding the UEFI Shell mapping table error - Why Ubuntu 20 gets stuck at startup.nsh - Step-by-step solution to fix the boot problem - Preventing this issue in the future ⚠️ Common symptoms: - UEFI Interactive Shell v2.2 appears instead of Ubuntu - Multiple BLK0, BLK1, BLK2 alias errors - System won't boot into Ubuntu normally - Stuck at "Press ESC in 1 seconds to skip startup.nsh" 💡 This fix works for: - Ubuntu 20.04 LTS - Ubuntu 20.10 - Other Ubuntu-based distributions - Virtual machines and physical installations PayPal : https://paypal.me/codewitharjun Patreon : https://www.patreon.com/codewitharjun ➡️ Subscribe : https://www.youtube.com/codewitharjun Stay Connected : ➡️ LinkedIn : https://np.linkedin.com/in/arjungautam1 ➡️ Github : https://github.com/arjungautam1 Join Community : ➡️Discord : https://discord.gg/cn2x3jhMW4 Follow me on : ➡️ Medium: https://codewitharjun.medium.com/ ➡️ Dev.to : https://dev.to/codewitharjun #CodeWithArjun #Programming #Ubuntu #Linux #UEFI #BootError #TechSupport