[oi-dev] ext2 on OI Hipster 20151003 follow-up

[Bruce Lilly]

Ken Mays kindly suggested using fuse from SFE and/or ntfs-3G.

Fuse didn't work because of what looks like a bug in /sbin/mount:

# mount -F fuse-ext2 /dev/dsk/c2t0d0p7 /mnt
mount: FSType fuse-ext2 exceeds 8 characters

"fuse-ext2", the name of the fuse module for ext2 is indeed 9 characters long.
Why /sbin/mount should have a problem with that is another matter.
The mount(1M) manual page, which has a recent date but doesn't look quite
like the usual illumos/openindiana man pages, gives no clue, but it mentions
the man page mnttab(4).
The mnttab(4) man page also provides no insight, but refers to
/usr/include/sys/mntio.h.
With appropriate packages installed, /usr/include/sys/mntio.h shows character
array mtl_fstype sized _ST_FSTYPSZ.
_ST_FSTYPSZ is defined in /usr/include/sys/stat.h as 16.
/sbin/mount has a compiled-in string "%s: FSType %s exceeds %d characters".
So if mount is using something less than _ST_FSTYPSZ-1, what is it using
(evidently something that evaluates to 8) and why?

This is apparently an old issue; it also shows up on a system running oi_151a9.

ntfs-3G might or might not have a more recent fuse driver, but no ext2
support per se,
so wouldn't help with this problem.

This, incidentally, is on a triple-boot laptop which also has NetBSD 7.0 and
openSUSE 13.1 Linux installed (both with native ext2 support) and both mounting
5 ext2 data partitions in peaceful coexistence.