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    • OCI: Unable to Boot Instance, Getting Error "can't boot blockdev"

    edited Apr 4, 2025 9:33AM in Linux

    Applies To:

    Oracle Cloud Infrastructure - Version N/A and later
    Linux x86-64 on Oracle Public Cloud

    Symptoms:

    Instance is not booting up and getting into emergency mode with the following error message below.

    Reloading system manager configuration
    
Starting default target
    
[  320.851780] /dev/sdb1: Can't open blockdev
    
You are in emergency mode. After logging in, type "journalctl -xb" to view
    
system logs, "systemctl reboot" to reboot, "systemctl default" or "exit"
    
to boot into default mode.

    
Cannot open access to console, the root account is locked.
    
See sulogin(8) man page for more details.

    
Press Enter to continue.

    Cause:

    Duplicate entry from the newly added block storage /dev/sdb.

    Tagged:

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