svn commit: r274653 - head/usr.sbin/freebsd-update

[Konstantin Belousov]

On Tue, Nov 18, 2014 at 01:38:09PM +0000, Mark Felder wrote:
> Author: feld (ports committer)
> Date: Tue Nov 18 13:38:09 2014
> New Revision: 274653
> URL: https://svnweb.freebsd.org/changeset/base/274653
> 
> Log:
>   Re-work non-persistent filesystem detection as it was not possible to
>   detect /dev/md backed mfs filesystems that way.
>   
>   Differential Revision:	https://reviews.freebsd.org/D1163
>   Approved by:	ian
> 
> Modified:
>   head/usr.sbin/freebsd-update/freebsd-update.sh
> 
> Modified: head/usr.sbin/freebsd-update/freebsd-update.sh
> ==============================================================================
> --- head/usr.sbin/freebsd-update/freebsd-update.sh	Tue Nov 18 13:38:07 2014	(r274652)
> +++ head/usr.sbin/freebsd-update/freebsd-update.sh	Tue Nov 18 13:38:09 2014	(r274653)
> @@ -604,14 +604,13 @@ fetchupgrade_check_params () {
>  		echo ${WORKDIR}
>  		exit 1
>  	fi
> -	for i in tmpfs mdmfs; do
> -		if df -t ${i} ${WORKDIR} >/dev/null 2>1; then
> -			echo -n "`basename $0`: "
> -			echo -n "${_WORKDIR_bad2}"
> -			echo ${WORKDIR}
> -			exit 1
> -		fi
> -	done
> +	case `df -T ${WORKDIR}` in */dev/md[0-9]* | *tmpfs*)
> +		echo -n "`basename $0`: "
> +		echo -n "${_WORKDIR_bad2}"
> +		echo ${WORKDIR}
> +		exit 1
> +		;;
> +	esac
>  	chmod 700 ${WORKDIR}
>  	cd ${WORKDIR} || exit 1
>  
Why do you suppose that md-backed volumes are not persistent ?
vnode-backed devices are stable.