Can't login following grub reinstall

Folks, Feeling fairly pleased with myself for jumping all the hoops to the reinstall of grub2 following growing forward my /boot and watching my machine boot first time into the gdm login screen - whoop! - I’m now totally unable to login to any account: root, me (user), graphical, tty or ssh. Nada.

It doesn’t make a lot of sense to me, shifting around /boot and reinstalling the grub2 uefi stuff doesn’t seem it should to touch upon whether I can login, but…

Here’s what I get returned from an attempted ssh login with all the vs:
:~$ ssh -vvv root@192.168.1.150

root@192.168.1.150’s password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 52
Authenticated to 192.168.1.150 ([192.168.1.150]:22) using “password”.
debug1: pkcs11_del_provider: called, provider_id = (null)
debug1: channel 0: new session [client-session] (inactive timeout: 0)
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions@openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: filesystem
debug3: client_repledge: enter
Read from remote host 192.168.1.150: Connection reset by peer
Connection to 192.168.1.150 closed.
debug3: send packet: type 1
client_loop: send disconnect: Broken pipe
:~$

I’m not sure that’s very informative; I wonder if anyone is able to give me some direction…

(Is there a way to debug tty login similar to the above?)

Thank you, Morgan

Assuming that you can edit the grub menu, you can add to the linux line: systemd.debug_shell

That will give you a root shell on tty9. Look then at the journal while attempting
to log in ( for example on another tty).

For the record.
Fedora does not allow root access via ssh by default.
Try logging in with your regular user instead.

Fedora workstation edition also does not enable sshd by default so it may be impossible to use ssh for a connection until you have booted normally and enables ssh connections.

Thanks @computersavvy and @francismontagnac for the follow-ups.
@francismontagnac YOU’RE King!!!
What a fab little tit-bit of knowledge - following your instructions I was quickly able to notice a whole raft of errors and… and amongst them a bit of selinux noise - setenforce 0 and I’m in!
I’ll report on what I discover if a simple system relabel doesn’t fix things.