Gptgen lossless conversion MBR to GPT

Today the beans found a small tool called Gptgen, very good, can be lossless conversion MBR to the GPT partition.

Go to work in the morning, Nagios to alert, Windows file Server disk space is almost full, because with dedup, even if the deletion of files also need to run garbage Collection job to release chunk store files, this process is slower, at least 1, 2 days, then users complain must fly in the sky. No, add hard disk space. Beans excitedly added volume,extend on the San Datastore, and then the virtual machine's hard disk added to 4 T, reboot, and then into the system a look, the hard disk is MBR format partition, up to 2T can only support. If I use my own DiskPart conversion, I have to remove partition re-partitioning. So I don't have all the data for a couple of T's? Online search, netizens are recommended a tool called Gptgen, beans downloaded to try, the effect is really good.

First do a small experiment, find a VM, add 10G hard disk, and then format the partition into MBR format, and then write a bit of data up.

The use of Gptgen is very simple, a little attention to the path to the disk is, for example, my virtual machine has 2 hard disks, the first one is \\.\PHYSICALDRIVE0, the second is the new addition is \\.\physicaldrive1

If you do not specify a parameter, he automatically creates two IMG files and tells you which address to write to. People who are familiar with Linux can be backed up by the DD tool

Reference https://bramp.net/blog/2010/08/30/converting-mbr-to-gpt-without-deleting-your-partitions/

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Then write the operation, the whole process is about 1 seconds.

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Finally, in DiskPart, confirm if the conversion was successful.

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The previously created files are intact there.

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The experiment was successful.

After the Veeam backup is done in the evening, the beans can be converted to my file server ~

This article is from the "Mapo Tofu" blog, please be sure to keep this source http://beanxyz.blog.51cto.com/5570417/1585301

Gptgen lossless conversion MBR to GPT