wrong boot disk. send help.

[cheeki-breeki]

got into a bit of a mess.
i'm running proxmoxVE on Disk1.
i then installed proxmoxVE on Disk2.
now when i try to boot into Disk1, it boots from Disk2.
tried to restore grub and vfat partitions to no avail.
i'm assuming i need to do something with pve-efiboot-tool and/or etc/fstab.
also, the installation of win10 i had on Disk3 no longer can boot..

 

[Kingneutron]

Check ' efibootmgr ' output and the man page for same

Proxmox isn't really designed for dual/triple boot; as a hypervisor it's more designed to take over the server.
If you want to boot from disk1, remove disk2.

Recovering a win10 boot is a completely different matter and may require win10-specific utilities. Hope you have backups.