how to mount NetBSD ffs partition under FreeBSD

marietto

Hello.

someone knows how to mount NetBSD ffs partition under FreeBSD ? thanks.

bsduck

Doesn't regular mount work? What does it say?

FFS is UFS, and that's the default partition type.

JuvenalUrbino

bsduck Doesn't regular mount work? What does it say?

I fear that the UFS2/FFSv2 divergent development over the years made the different implementations incompatible across BSDs.

MG_

I don't think it's a technical barrier. Probably, everybody who wants to do this creates a FAT filesystem that's accessible by both.
If I really wanted to do this, I would give Qemu a try. Boot the volume with a NetBSD image, then share the files with the host, using a shared directory or a virtiual disk partition that is compatible with both the host and the guest system.

boomer3200

FFS v1 works just fine (newfs -O 1) across NetBSD and FreeBSD for at least a terabyte of space. Even if you turn off soft updates and the different journaling implementations on v2, I seem to recall that there are superblock differences.