Cloned SSD boot issue

[ibanezfoo]

I upgraded my kid's PC with a larger system C 1 TB NVME Drive (Crucial) last week

Used Clonezilla and it worked fine.

I took his old system NVME M2 drive (Samsung 970 pro plus 500GB) and tried cloning my 500 GB Samsung SATA SSD to his 970 to use as my system drive. Used Clonezilla.

Appeared to clone fine but would not boot in my system.

Resorted to the Samsung Data Migration. It was faster and booted fine... Weird. Even though both drives were Samsung it shouldn't make a difference.

Hit and miss

NVMe and SSD are different architecture with different addressing. You could probably clone it and tweak the Windows boot manager to make it work. Or use something like Grub and tweak that

[Dan_Eastvale]

But NVME is SSD.

Wouldn't think SATA interface on the cloned drive would make a difference

[ibanezfoo]

But NVME is SSD.

Wouldn't think SATA interface on the cloned drive would make a difference

SSD / SATA goes through the motherboards controller. NVMe sits on the bus directly and has its own controller. That?s why they are so fast. Completely different tech. The cheesy off brand NVMe drives will just use some crap SATA controller on the drive and basically run as a SATA SSD.

https://www.kingston.com/en/blog/pc-performance/nvme-vs-sata

[command_liner]

SSD / SATA goes through the motherboards controller. NVMe sits on the bus directly and has its own controller. That?s why they are so fast. Completely different tech. The cheesy off brand NVMe drives will just use some crap SATA controller on the drive and basically run as a SATA SSD.

https://www.kingston.com/en/blog/pc-...e/nvme-vs-sata

Correct. NVMe is memory on the PCIe bus. With the proper driver it can be used as a disk. Or not. This is easily seen with modern Linux, where one can take any number of identical NVMe devices and synthesize them into a single, or multiple RAID or disk instances. Then a disk-ish driver is loaded, then a filesystem driver is loaded, then a boot target and structure.

Early on I used the HP Quadro cards to hold 4 M.2 devices on a single U-type PCIe card. Later I used 4 2-TB M.2 devices on the 16-channel ASUS cards. With the fast NVMe-3 cards, this makes a good data drive.

Two of these provides for 16T of fast storage. Combined with 128 GB of DDR4 memory, 16 xeon cores and a 2T SSD for boot, this was an adequate workstation.

I really liked the combo of 386 GB of memory on 4 separate PCIe buses, and 96 Xeon cores. Yes, there was NUMA traffic, but the fully populated DDR4 and "enough" memory made for good context switching performance. Forcing the use of 2M pages made for a radical (sometimes 100:1) reduction in startup time for big applications.