Repair Corrupt Flat Vmdk Files Official

If it’s but a sparse VMDK with corrupt metadata:

If your VM cannot find its disk or throws a corruption error, follow this guide to troubleshoot and repair the issue. Common Causes of Flat VMDK Corruption Corruption typically stems from the following scenarios:

If the descriptor is fine but the guest OS doesn’t boot: repair corrupt flat vmdk files

Create a new .vmdk descriptor (plain text):

If successful, the tool will return a message stating the virtual disk has been repaired. Using vmkfstools (ESXi) If it’s but a sparse VMDK with corrupt

— only raw sector data. So recovery focuses on:

testdisk /dev/sdb

This involves using specialized software like or PhotoRec .

If you successfully cloned the VMDK, but the Guest OS (Windows/Linux) fails to boot (e.g., "Unmountable Boot Volume"), the internal filesystem needs repair. Since the VMDK is a raw block device, you need to scan it like a physical hard drive. So recovery focuses on: testdisk /dev/sdb This involves

Broken links in a snapshot tree can make the base flat file appear corrupted. Step 1: Manual Repair via Command Line

vmkfstools -i corrupt.vmdk fixed.vmdk -d thin