[CentOS] mount bind problem

[Robert Nichols]

On 04/12/2016 05:37 AM, Sylvain CANOINE wrote:
>
>
> ----- Mail original -----
>> De: "望月忠雄" <tadao at creative-japan.org> À: "centos"
>> <centos at centos.org> Envoyé: Mardi 12 Avril 2016 08:17:13 Objet:
>> [CentOS] mount bind problem
>
>> I have set on fstab /home with 'mount bind' but it seems like bind
>> is not effective.
> Indeed. By default, nothing mounts "bind" filesystems. The init
> scripts don't read the hole fstab file, there are filters to mount
> only some filesystems types. If you want to mount the "bind" FS on
> boot, you need to add the related commands into /etc/rc.d/rc.local.

Nonsense!  I'm also running CentOS 6.7 and have several bind-mounts
in my /etc/fstab:

    /var/home            /home           none  bind   0 0
    /var/lib/libvirt/etc /etc/libvirt    none  bind   0 0
    /srv/news            /var/spool/news none  bind   0 0

All of them occur automatically when the system boots.  The
"mount -a" in /etc/rc.d/rc.sysinit takes care of them just fine.
The filter on that command is _excluding_ certain types.  Note
that the first two letters are "no", which applies to all the
listed types:

     mount -a -n -t nonfs,nfs4,smbfs,ncpfs,cifs,gfs,gfs2i,glusterfs -O 
no_netdev

[rkn] ~ $ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/vg_omega3g-rootvol
                       11963960   5995348   5337828  53% /
tmpfs                  8194160       340   8193820   1% /dev/shm
/dev/sda1               689128    130200    508752  21% /boot
/dev/mapper/vg_omega3g-var
                       38166008   8282340  27921892  23% /var
/dev/mapper/vg_omega3g-srvlv
                      564310312 360619492 175002488  68% /srv
/dev/mapper/vg_omega3g-virt
                      194274580 119917252  64617656  65% /var/lib/libvirt
tmpfs                  2097152       652   2096500   1% /tmp
[rkn] ~ $ df /home /etc/libvirt /var/spool/news
Filesystem           1K-blocks      Used Available Use% Mounted on
/var/home             38166008   8282340  27921892  23% /home
/var/lib/libvirt/etc 194274580 119917252  64617656  65% /etc/libvirt
/srv/news            564310312 360619508 175002472  68% /var/spool/news

-- 
Bob Nichols     "NOSPAM" is really part of my email address.
                 Do NOT delete it.