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vlarkanov2019-02-19 14:03:20
linux
vlarkanov, 2019-02-19 14:03:20

Migrating an installed Ubuntu Server 16.04 to RAID1 - how to do it?

Given: Ubuntu Server 16.04 installed on an SSD.
Needed: transfer the installed OS without data loss to a soft-trade of 2 SSDs (NVME) that can only boot via UEFI.
Can this be done, and if so, how?

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2 answer(s)
A
Alexey Svistunov, 2019-02-28
@svalx

I don't see any major obstacles.
If the system was previously booted through the BIOS, create an ESP, then use Clonezilla to transfer existing partitions, for example. After that, chroot into the new system - reinstalling the bootloader and editing /etc/fstab. Softtrade may require dmraid, it is worth installing and configuring it before transferring partitions.

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Valentine, 2019-02-28
@ProFfeSsoRr

You can do it, you just need to make a boot partition on each disk. And the partition with the system is already in RAID1.
BUT! RAID from SSD is a bad idea in itself, and from NVME it's absolutely terrible, the whole point of NVME (minimizing delays) is lost. So a really good solution to your problem is not to solve it through RAID at all.

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