Re: Migration to btrfs: Is a reinstall the best way?
On Sat, Jan 2, 2021 at 9:04 AM Richard Shaw <hobbes1069(a)gmail.com> wrote:
My plan is to upgrade from my current 500GB Samsung EVO to a 1TB version and copy all my
data over.
Creating the subvolumes and updating fstab is easy enough, but what else needs to be
done?
grub2-mkconfig. The root fs UUID has changed as well as needs a hint
for the subvolume to use as sysroot, e.g. rootflags=subvol=root. These
are picked up by grub2-mkconfig.
initramfs probably does not need to be done, because btrfs is now
built-in to the kernel instead of as a module.
Would a reinstall do any "magic" that's difficult to do
by hand?
Not really. When in doubt use defaults. And the installer uses
upstream defaults.
Two features will soon be the default, are stable for a long time, and
I use them both. Since you're doing your own mkfs you could opt in
now: '-R free-space-tree -O no-holes' - both can be enabled after
mfks time though too.
--
Chris Murphy