On Aug 22, 2022, at 9:27 AM, Warner Losh <imp(a)bsdimp.com> wrote:
FreeBSD deleted some compat code in the kernel some time ago, and it turns
out that restore used that to read old dump tapes, so we broke old dump tapes.
So you can't use FreeBSD's unmodified.
May be run an older release that has this code?