According to @ChuckPfarrer's graphic, SU-24s will need to be modified to carry the JDAMs.
My guess is that the Ukrainian Mig-29s that have been modified to carry HARM missiles would be able to carry JDAMs without further modification.
The Slovakian Mig-29s, being delivered to Ukraine, have probably already been modified to carry HARMs and JDAMs.
The picture below shows a Ukrainian MiG-29 with a HARM...note the adapter between the wing pylon and the missile:
That adapter would also be used for JDAMs.