On Wed, 2019-05-22 at 20:00 +0100, ja wrote:
On Wed, 2019-05-22 at 20:16 +0300, Kevin Wilson wrote:
> Hi all,
> I had installed Fedora 30, on a dual boot machine which has a second
> partition with Fedora 28.
> Fedora 30 comes by default with a new boot loader spec.
> I found under /boot/loader/entries/ the following:
> ls /boot/loader/entries/
> I want to be able to boot by default into Fedora 28.
> Is there a way by some utility to generate entries under
> /boot/loader/entries/ for the
> Fedora 28 and choose Fedora 28 as the default ?
> Or should I disable the boot loader spec in order to boot to Fedora 28
> on this machine ?
I have had exactly this problem
I have made some notes - attached
This is vital reading
If they help or if you have a better insight than me
please let me know!
The reason I investigated this was that during installation of F30
no additional entries were generated for other partitions - by grub2-mkconfig.
I added my comments to
Many subsequent attempts to use grub2-mkconfig failed to add
The grub.cfg and associated files successfully boot F30.
During investigation of this I found the following that may be useful.
I do not understand the significance!
When grub2-mkconfig is run os-prober seems to create entries of the form
[root@naxos:/boot/efi/EFI/fedora]$ dmsetup ls
These entries seem to stop the mounting of the partitions
[root@naxos:~]$ blkid -c /dev/null shows them as
These entries can be "removed" and hence the partition "mounted" by
dmsetup remove /dev/mapper/osprober-linux-nvme0n1p7