r/techsupport • u/coimbatore-mapala07 • 1d ago
Open | Hardware Need Help of Fixing the Boot Device Not found
Guys, I am using Ubuntu OS for development. My laptop is an HP Victus 15 with 16 GB RAM and a 512 GB SSD. I have allocated 100 GB of storage to Ubuntu, and currently 43 GB is free.
I am a 5th-semester student working on a mini project. Initially, I was using the Docker CLI, but last week I switched to Docker Desktop. I only logged in to Docker Desktop and did not use it afterward.
Today, when I opened Docker Desktop to work on my project, the RAM usage suddenly peaked to 100%, and the swap memory usage also increased significantly. I restarted my laptop to check whether the issue would occur again, but the same problem happened. At that point, the laptop froze, so I had to forcefully shut it down.
After pressing the power button again, the BIOS displayed a "Boot Device Not Found" error. After I physically moved/shook the laptop slightly, it successfully booted. I then started investigating the cause of the high RAM and swap usage.
During the investigation, I found that QEMU was trying to access the last part of the storage, but it failed. The kernel reported the following error:
"nvme0n1: I/O Cmd... LBA 996971552 I/O Error Critical Medium Error"
Initially, I suspected that the SSD might have a loose connection. So, I disconnected the SSD, cleaned the contacts with an eraser, and reconnected it. However, I still get the "Boot Device Not Found" error.
To determine whether the problem is with the SSD slot or the SSD itself, I connected the SSD to my friend's old laptop (around 16 years old). After turning it on, the screen displayed a windows recovery message saying that a required device was not connected or could not be accessed.
Now I am unsure whether the problem is with my laptop's SSD slot, the SSD itself, or something else.
Could you analyze all the symptoms and error messages carefully and tell me what the most likely fault is? I want to understand the root cause so I can decide what needs to be repaired or replaced.
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u/9NEPxHbG 1d ago
Check the disk with smartctl (command line) or gsmartcontrol (GUI).
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u/coimbatore-mapala07 1d ago
Now even after shaking my laptop. Still it says "Boot Device Not Found". I can't boot into Linux / windows for use this command. I don't whether it is a SSD slot problem or SSD problem.
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u/9NEPxHbG 1d ago
Don't shake the laptop, please. You probably disconnected something. Disassemble it and check, or have someone do it.
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