How to use hammer volume-add and volume-del

[lhmwzy]

Still have problem.

lhmwzy# cat /etc/fstab
# Device                Mountpoint      FStype  Options         Dump    Pass#
/dev/da0s1a             /boot           ufs     rw              1       1
/dev/da0s1b             none            swap    sw              0       0
/dev/da0s1d             /               hammer  rw              1       1
/pfs/var                /var            null    rw              0       0
/pfs/tmp                /tmp            null    rw              0       0
/pfs/usr                /usr            null    rw              0       0
/pfs/home               /home           null    rw              0       0
/pfs/usr.obj    /usr/obj                null    rw              0       0
/pfs/var.crash  /var/crash              null    rw              0       0
/pfs/var.tmp    /var/tmp                null    rw              0       0
proc                    /proc           procfs  rw              0       0

 #hammer volume-add /dev/da1 /

then system panic.
panic: hammer_io_set_modlist: duplicate entry
. ................


#uname -a
DragonFly lhmwzy.org. 2.13-DEVELOPMENT DragonFly
v2.13.0.34.g10c9b-DEVELOPMENT #0: Tue Oct 11 21:40:17 PDT 2011
root at pkgbox64.dragonflybsd.org:/usr/obj/build/justin/dragonfly/sys/X86_64_GENERIC
 x86_64



2010/4/7 Michael Neumann <michaelneuma at googlemail.com>:
>
>
> 2010/4/7 lhmwzy <lhmwzy at gmail.com>
>>
>> # uname -a
>> DragonFly . 2.6-RELEASE DragonFly v2.6.1-RELEASE #1: Sun Apr  4
>> 19:50:41 PDT 2010
>> root at test28.backplane.com:/usr/obj/usr/src-misc/sys/GENERIC  i386
>>
>> # hammer volume-del /dev/da1 /usr
>> hammer volume-del ioctl: Invalid argument
>
> /usr is not a valid HAMMER filesystem! You must specify the path you
> use in mount, not a PFS.
> For example:
>   mount_hammer /dev/ad1 /mnt
>   hammer volume-add /dev/ad2 /mnt
>
>>
>> when added a disk,can't be removed.
>>
>> another question,the same disk(/dev/da1 for example) can be added for
>> many times using "hammer volume-add /dev/da1 /usr",is this normal?
>
> What does hammer info /usr show? I am sure it is not added, but maybe no
> error is shown.
> Regards,
>   Michael
>