Adding a second disk to increase the space for /var on first dislk : but umount /var failed

[dhaneshk k]

I followed as per the  directions  up to this 
 
> Now, unmount /var and /mnt and mount your new var:
> 
> umount   /var   /mnt
> mount -o rw /dev/da1s1e  /var
> 
> Edit /etc/fstab and update it for the new disk:
> 
>  /dev/da1s1e      /var       ufs      rw     2    2


I am able to   umount  /mnt                       but not   /var 



[root at storm ~]# umount /var/
umount: unmount of /var failed: Device busy
[root at storm ~]# umount /mnt/
[root at storm ~]# umount /var/
umount: unmount of /var failed: Device busy
[root at storm ~]# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/ad7s1a    496M    329M    127M    72%    /
devfs          1.0K    1.0K      0B   100%    /dev
/dev/ad7s1e    496M    5.4M    451M     1%    /tmp
/dev/ad7s1f     44G     38G    2.9G    93%    /usr
/dev/ad7s1d    1.4G    221M    1.1G    16%    /var
devfs          1.0K    1.0K      0B   100%    /var/named/dev
[root at storm ~]# umount /dev/ad7s1
ad7s1   ad7s1a  ad7s1b  ad7s1c  ad7s1d  ad7s1e  ad7s1f  
[root at storm ~]# umount /dev/ad7s1d 
umount: unmount of /var failed: Device busy
[root at storm ~]# umouny /var/ 
bash: umouny: command not found
[root at storm ~]# umouny /var 
bash: umouny: command not found
[root at storm ~]# umount /var
umount: unmount of /var failed: Device busy
[root at storm ~]# pwd
/root
[root at storm ~]# umount /var
umount: unmount of /var failed: Device busy
[root at storm ~]# 



getting an error   Error org.freedesktop.Hal.Device.PermissionDeniedByPolicy.

Details  hal-storage-fixed -mount    refused uid 0       How to fix this and umount /var



 

Any hints most welcome : 


Thanks in advance 

Dhanesh




> Date: Tue, 10 Jun 2008 10:52:41 +0300
> From: sonicy at otenet.gr
> To: dhaneshkk at hotmail.com
> CC: freebsd-questions at freebsd.org
> Subject: Re: Adding a second disk to increase the space for /var on first dislk    :  4  questions
> 
> 
> 
> dhaneshk k wrote:
> >
> >  people :      I am facing a  issue , in my FreeBSD server box   the   /var  (85 %  now)  directory is going to full , no space left in this  disk anymore .
> >
> > But I have another disk in my box  which is of 140 GB fresh disk , this I have to add so I gone through 
> > the FreeBSD hand book of adding a new disk .
> >
> >
> >   According to docs  I  sliced and partitioned the second disk ,
> >
> >  one doubt  :  here I created  10GB  bsd partition  in the second disk  ,
> >
> > I have to assign o assign this  for /var (in my first  disk  /var is going to full) 
> >
> >
> > Q1   )      so in /etc/fstab , the mount point what I have to specify  ?  
> >
> >  /var itself or  I need to create a directory  (mkdir   /myspace ) 
> >
> >  and add it as the mount point in /etc/fstab  ?    like this 
> >
> >
> >     /dev/da1s1e    /myspace       ufs      rw      2     2
> >
> >
> > OR 
> >
> >       /dev/da1s1e      /var       ufs      rw     2    2   
> >
> >
> >
> > which one is correct  ?
> >
> >
> >
> > and after this editing of  /etc/fstab   and restarting of the machine .
> >
> >
> > Q 2  )   my  serverbox  how it will continue to use the newly added space ? for this I have to do any thing 
> >
> >
> > some one told me that I have to copy all the contents of the /var  of first disk to this newly added  space 
> >
> > is it right ?
> >
> > how to do that 
> >
> >
> > Q3 )    dd    /dev/da0s1d   /dev/da1s1/e      right ?  (to copy the content from   /var (/dev/da0s1d)   of  the first disk  to   the newly added space   for var   on the second disk    (/dev/da1s1e ) 
> >
> >
> >
> > Q4 )  Is it needed to install all the applications which already installed in the /var of the first disk to the  newly 
> >
> > added space on the second disk? 
> >
> >
> >
> >
> > please give your tips and advice to  achieve   what I am trying to do.  Many of you may have done this 
> >
> > before please help with your comments 
> >
> >
> >
> >
> > Thanks in advance for all of you 
> > Dhanesh
> >
> >
> >
> > _________________________________________________________________
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> >
> >
> >
> >   
> 
> You will have to do something like the following:
> 
> - Mount the new partition to a temporary mount point (like /mnt) i.e.:
> 
> mount /dev/da1s1e   /mnt
> 
> - Copy all the contents from /var to /mnt. Since /var is in use in a 
> running system, the results maybe less than optimal. I suggest you 
> switch to single user mode for doing this:
> 
> shutdown now
> 
> Use something like the following to transfer the files and permissions:
> 
> tar cfC - /var . | tar xpfC - /mnt
> 
> (thank you M.W. Lucas!)
> 
> Now, unmount /var and /mnt and mount your new var:
> 
> umount   /var   /mnt
> mount -o rw /dev/da1s1e  /var
> 
> Edit /etc/fstab and update it for the new disk:
> 
>  /dev/da1s1e      /var       ufs      rw     2    2
> 
> either exit to multi user mode or reboot. Of course, check that the 
> files were actually copied to their right places first!
> 
> 
> 
> 
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> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
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