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Bit Copy Of A Mixed Use Hard Drive

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German_EE:
I tried using dd overnight, everything was copied across except the two EFI partitions so the search for an answer continues.

Monkeh:

--- Quote from: German_EE on November 09, 2019, 07:54:29 am ---I tried using dd overnight, everything was copied across except the two EFI partitions so the search for an answer continues.

--- End quote ---

I think you're searching for a question..

If you use dd to copy a raw block device, everything will be copied. UEFI or not.

Halcyon:

--- Quote from: Monkeh on November 09, 2019, 08:49:54 am ---
--- Quote from: German_EE on November 09, 2019, 07:54:29 am ---I tried using dd overnight, everything was copied across except the two EFI partitions so the search for an answer continues.

--- End quote ---

I think you're searching for a question..

If you use dd to copy a raw block device, everything will be copied. UEFI or not.

--- End quote ---

Absolutely. dd cares not what is on the disk. It could be complete garbage (encrypted) or blank, it will still image it, bit-for-bit, start to finish.

magic:
I wouldn't make images of a disk containing any filesystem which is mounted read-write at the time. This is asking for an inconsistent snapshot which may fail to mount or cause data corruption down the line after restoration.

I have no idea what you mean by UEFI format and EFI partitions.

There is the new UEFI GUID partition tables, Linux of course supports them or it wouldn't even mount its own partition. There are some individual partitions for UEFI use, I know nothing about their contents because my household is UEFI-free but you can certainly image them by reading /dev/sdxN regardless of what filestystem format they contain.


--- Quote from: German_EE on November 09, 2019, 07:54:29 am ---I tried using dd overnight, everything was copied across except the two EFI partitions so the search for an answer continues.

--- End quote ---
Maybe it's time to ask what exactly have you done and how you know what is copied and what is not.

wilfred:
Be sure to verify your copy to another HDD will work by booting from it. The last thing you'd want is aggravation when you have dire need of it to work.

And I agree dd should be suitable.

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