/boot accidentaly deleted

[Valus]

Hi all,
I wanted to upgrade openbsd 5.9 to 6.0 and accidenataly overwrote /boot

cp bsd60.rd /boot

On other server I have openbsd 6.0 the same architecture

OpenBSD 6.0 (GENERIC) #1: Fri Sep 23 08:54:37 CEST 2016
    root@stable-60-amd64.mtier.org:/binpatchng/work-binpatch60-amd64/src/sys/arch/amd64/compile/GENERIC
real mem = 520081408 (495MB)
avail mem = 499953664 (476MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0x1ffffec0 (10 entries)
bios0: vendor Seabios version "0.5.1" date 01/01/2007
bios0: Red Hat KVM

Can I use boot from 6.0 and copy it to 5.9 and after reboot to start upgrade?
Thanks.
Valus