On 2020-12-30 1:48 a.m., Chris Green wrote:
:
Hmmmmm.. It is an old (2012) PC with BIOS. To my knowledge, it is not aware
of UEFI and the BIOS is not aware of the PCIe NVMe SSD. However, after
booting, Gparted can see the NVMe SSD and I can copy files to it (after
partitioning and formatting).
It's the Linux kernel drivers that allow you to see the nvme disk.
:
Here's how my system like yours is partitioned:-
Filesystem Type 1M-blocks Used Avail Use% Mounted on
/dev/nvme0n1p2 ext4 48174 11681 33978 26% /
/dev/nvme0n1p3 ext4 896193 313911 536690 37% /home
/dev/sdb1 ext4 10016 176 9313 2% /boot
/dev/sdb2 ext4 109596 27675 76313 27% /scratch
/dev/sda1 ext4 938772 220811 670252 25% /bak
:
Mine boots pretty fast, /dev/sdb is what *used* to be my system disk
and is a SATA SSD but my first pass at sorting this out had boot on a
spinning hard disk and while it is somewhat faster on the SATA SSD it
doesn't make a huge difference. There's not much has to be read off
/boot.
My sense is that a lot of the contortions you went through was to retain
your old Xubuntu 19.04 HD so you could copy the contents its /home
directory to the /home directory on your NVMe drive.
I took a lazier approach:
* removed my old HDD and replaced it with a 120GB SATA SSD
* installed my new 1TB NVMe SSD in the only PCIe slot on my old
motherboard
* installed the latest Ubuntu from a CD (the BIOS on my mobo cannot
boot from USB)
o partitioned and formatted /dev/sda for /boot
o partitioned and formatted /dev/nvme0 for [swap], / and /home
o ignored complaints and "failure to install" messages from
installation s/w
o rebooted and failed to instruct the BIOS to boot from the 120GB
SATA SSD
* despite this, PC booted as desired ..about 4 times faster than it
did previously from HDD
* connected my old HDD to the PC via an external SATA "toaster" drive
(drive is popped in like bread in a toaster)
* copied contents (including '.' or hidden folder/files) from its
/home directory to the /home directory on /dev/nvme0
Now, I have a very fast PC.
By the way, I am curious as to why you put /scratch (swap?) on your SATA
SSD and not on your NVMe SSD.
RF
