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user@ubuntu:~$ journalctl -xe | grep "Gave up waiting for root device"
Critical

Gave up waiting for root device_ (Ubuntu)

Gave up waiting for root device

Ubuntu · Boot/GRUB

Ubuntu just hit error Gave up waiting for root device, which corresponds to a fault called "Gave up waiting for root device". This is one of the most searched error codes for this OS — you're not alone, and there's a clear fix.

What Actually Happened

System boot halted: the kernel timed out waiting for the root block device to become available, often a missing driver or renamed device.

Symptoms

Linux boot halted with message: 'Gave up waiting for root device'

Common Causes

  • Boot condition: the kernel timed out waiting for the root block device to become available, often a missing driver or renamed device

How to Fix It

  1. 01
    Boot from a Live USB media
  2. 02
    Chroot into installation and run:
    sudo update-grub
  3. 03
    Reinstall bootloader:
    sudo grub-install /dev/sda
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Root Cause Breakdown

Bootloader or initramfs failed to map root device.

Should You Worry?

High priority, but files on disk remain safe.

Power-User Tip

Run sudo os-prober from Live USB to auto-detect OS partitions.

Estimated Fix Cost USD
$0 $100

Live USB DIY: $0; Tech recovery: $50�$100