Ubuntu 22.04 LTS Desktop安装报错：/dev/mmcblk1写入时输入/输出错误的问题咨询

Hey there, let's break down this error and walk through possible fixes step by step!

First off, /dev/mmcblk1 is almost always your laptop's built-in eMMC storage (a type of embedded flash storage similar to an internal SSD). That input/output error means the system ran into trouble trying to write data to this device—usually this points to either a hardware issue with the eMMC, problems with the storage's partition setup, or even a faulty bootable USB.

Here are some actionable steps to troubleshoot:

• Verify your bootable USB's integrity
  Sometimes the USB drive gets corrupted during creation, which can cause write errors mid-install. Try remaking the bootable USB using Ubuntu's official Startup Disk Creator, and double-check that the Ubuntu 22.04 ISO file you used isn't damaged (you can verify its MD5 hash against the official values listed on Ubuntu's download page).

• Check the eMMC's health status
  This error often signals bad blocks or hardware failure in the eMMC. Boot into "Try Ubuntu without installing" mode, open a terminal, and first install the storage diagnostic tool:

  sudo apt update && sudo apt install smartmontools
  

  Then run this command to check the eMMC's health:

  sudo smartctl -a /dev/mmcblk1
  

  If the report shows bad blocks or poor health ratings, you might need to replace the eMMC module.

• Wipe and re-partition the eMMC
  Old partition tables or leftover boot data can interfere with the install. In the "Try Ubuntu" mode, open the GParted tool, delete all existing partitions on /dev/mmcblk1, create a fresh GPT partition table, then restart the installation process. Make sure to back up any important data on the eMMC first if you can!

• Adjust BIOS/UEFI settings
  Boot into your laptop's BIOS/UEFI menu (usually by pressing F2, F10, or Del during startup) and check these settings:

  • Try switching the SATA mode between AHCI and IDE (some older laptops have compatibility issues with AHCI)
  • Temporarily disable Secure Boot, as it can block write operations to the storage device during installation

• Switch to a different USB port
  Sometimes a faulty or low-power USB port can cause intermittent write errors. Try using a USB port directly on the laptop's main body (avoid USB hubs) and preferably a USB 3.0 port if available.

Hope these tips help you get past the error! If you can share more details like your laptop model or steps you've already tried, it'll be easier to narrow down the issue further.

备注：内容来源于stack exchange，提问作者BajanTechie