On Thu, Jan 16, 2025 at 04:17:29PM +0100, Hans wrote:
Now I heard of, that a NVME drive will only get to full speed, if UEFI is
activated in BIOS. Is this correct?
No, at least for linux; I can't speak to windows.
Another question, not really important: The device names, like "/dev/hdX", "/
dev/sdX" and now "/dev/nvmeX" - who is creating these? The kernel? Must /etc/
fstab be manually changed, when changing the kind of harddrive?
They'll be created automatically. If you are using device names in fstab
you'll need to update them manually. Note that the initrd needs to be
updated also in that case, or the system will be unable to boot. (You
can boot from the installer using the rescue mode to do all this, or do
it ahead of time.)
The normal configuration is to use a filesystem UUID to define mounts,
something like
UUID=67698058-f5cc-43e5-b052-1ebd8339c3cf / ext4 errors=remount-ro 0 1
in fstab rather than /dev/whatever. In that case it doesn't matter what
the device name is, they'll all be searched until that UUID is located.
The final potential gotcha is if you have specified MODULES=dep in
/etc/initramfs-tools/initramfs.conf (or a file in
/etc/initramfs-tools/conf.d). In that case the initrd may not have the
proper nvme module which would prevent the system from booting. Set
MODULES=most and rebuild with "update-initramfs -k all -u". You can set
it back to dep after booting on the new drive. Again, you can use a
rescue boot to correct this if necessary.
