Re: git: 3ed0cdf7de79 - main - Update vmimage.subr

From: Warner Losh <imp_at_bsdimp.com>
Date: Fri, 05 Sep 2025 20:43:36 UTC
On Fri, Sep 5, 2025, 1:40 PM Jessica Clarke <jrtc27@freebsd.org> wrote:

> On 5 Sep 2025, at 19:42, Warner Losh <imp@freebsd.org> wrote:
> >
> > The branch main has been updated by imp:
> >
> > URL:
> https://cgit.FreeBSD.org/src/commit/?id=3ed0cdf7de79fc0f50f57e75cdb9ae178ab0e74c
> >
> > commit 3ed0cdf7de79fc0f50f57e75cdb9ae178ab0e74c
> > Author:     Unicorn9x <unicorn9x@yahoo.com.vn>
> > AuthorDate: 2025-09-01 11:30:48 +0000
> > Commit:     Warner Losh <imp@FreeBSD.org>
> > CommitDate: 2025-09-05 18:42:21 +0000
> >
> >    Update vmimage.subr
> >
> >    This "noatime" tweak, reduced the OPNsense constant 50kb - 80kb disk
> writes that wear down the SSD / NVME.
> >
> >    Signed-off-by: Unicorn9x
> >    Reviewed by: imp
> >    Pull Request: https://github.com/freebsd/freebsd-src/pull/1834
> > ---
> > release/tools/vmimage.subr | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/release/tools/vmimage.subr b/release/tools/vmimage.subr
> > index 156987e33457..20ffe3b2dac7 100644
> > --- a/release/tools/vmimage.subr
> > +++ b/release/tools/vmimage.subr
> > @@ -82,7 +82,7 @@ vm_install_base() {
> > echo '# Custom /etc/fstab for FreeBSD VM images' \
> > > ${DESTDIR}/etc/fstab
> > if [ "${VMFS}" != zfs ]; then
> > - echo "/dev/${ROOTLABEL}/rootfs   /       ${VMFS}   rw      1       1" \
> > + echo "/dev/${ROOTLABEL}/rootfs   /       ${VMFS}   rw,noatime      1
>      1" \
>
> Do we really want to be disabling atime for every UFS VM image we
> produce? With ZFS we can do that because /var/mail is separate, but
> AFAIK there is no separate /var/mail in the UFS images?
>

I think we do. /var/mail is used by a relatively small group of users.
People that need the mail reader features of /var/mail can enable atime.
It's the lesser evil.

Warner

Jessica
>
> > >> ${DESTDIR}/etc/fstab
> > fi
> > if [ -z "${NOSWAP}" ]; then
>
>