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Virtualizor

by sajibe
January 8, 2026
Virtualizor, Linux

Virtualizor VM Migration Failed – The Real Problem We Faced and the Fix That Finally Worked

While migrating a VPS between nodes in Virtualizor, we ran into a problem that at first looked very simple, but ended up taking a lot of time to understand....
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by sajibe
January 4, 2026
Linux, Virtualizor

RAID Failure Causing Linux Emergency Mode — Root Cause & Resolution

Recently, one of our production servers experienced an unexpected boot failure, repeatedly dropping into Linux Emergency Mode with the error: EXT4-fs (nvme0n1): VFS: Can't find ext4 filesystem At the...
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by sajibe
August 3, 2025
Virtualizor

Fixing Virtualizor Migration Issue: “Task Not Updated on Master from Last 30 Minutes”

When performing a VPS migration in Virtualizor, you may encounter this error: Task not updated on Master from last 30 minutes This issue is caused by a mismatch between...
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by sajibe
April 14, 2025
Virtualizor

How to Fix the “No NBD Device Passed to Disconnect – disconnect_nbd()” Error in Virtualizor

If you have already used a Virtualizor trial and are now encountering the error “No NBD device passed to disconnect – disconnect_nbd()” when trying to install Virtualizor again, this...
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