On Mon, Dec 28, 2020 at 07:54:17PM -0800, Robert Furber via Support requests for the GRand Unified Bootloader wrote: > Instead of sending them to the landfill, old PCs can be upgraded > dramatically by replacing or supplementing the HDD by a SSD ..specially, a > NVMe SSD. In my case, the NVMe SSD is mounted on a PCIe adapter card. > > The catch is the BIOS in older PCs cannot see or be aware of a NVMe SSD. > They can only boot from a HDD. However, after booting, the NVMe SSD becomes > visible and accessible. > > The challenge is to figure out when, during the Grub boot, does the NVMe SSD > become accessible, and then figure how to reboot on it. For instance, would > it be possible to set up a customized Grub on the HDD that would chain a > second Grub on the SSD ..as soon as the PC becomes aware of its existence? > Sort of along the lines of "Chain-loading and OS". But, instead of > chain-loading Windows10, it would chain-load Ubuntu20 on the SSD? > > I am really green. Up until 2 days ago, I had no idea Grub even existed. > Since then, I have been reading up on Grub and I feel overwhelmed, under the > impression that it could take me months to learn enough about Grub to figure > out how to boot from my new SSD. > > Can anyone help me or point me in the right direction? > There's a long thread of mine about *exactly* this issue. Yes, I still have it in my mail system. There are 5 threads about it:-
2019-11-17 How to install grub onto an added drive? 2019-11-21 A further question on my "how to move to an NVME disk" question 2019-11-22 xubuntu 19.10 fails to install with /boot on different drive - grub-install error 2019-11-22 Clarification of what grub-install does, versus grub-mkconfig/update-grub 2019-11-23 I've finally got there with xubuntu 19.10 installed on my NVME disk - thanks everyone! I (as you can see) did make it in the end. There's a further related thread:- 2020-01-10 How to change /boot disk? You should be able to find and read all the above threads in the list archive. If you can't get to them for some reason I can send them from my mail folder to you if you want. -- Chris Green
