hardisk full

[Jeff Vian]

Laurence Orchard wrote:

>On Mon, 2004-04-12 at 06:12, Jeff Vian wrote:
>  
>
>>Bilal Dar wrote:
>>
>>    
>>
>>>Well thanks but i am not even at this step now, my new device is /dev/hdb. I made two partitions /dev/hdb1 and /dev/hdb2. Now what should be my next step. I dont know what to do next.
>>>
>>>Thanks
>>> ----- Original Message ----- 
>>> From: Gertjan Vinkesteijn 
>>> To: For users of Fedora Core releases 
>>> Sent: Sunday, April 11, 2004 2:10 PM
>>> Subject: Re: hardisk full
>>>
>>>
>>> Bilal Dar wrote: 
>>>   Dear all,
>>>
>>>   I am having this problem, my harddrive got full so i added another one to my machine. Now i don't know how to move my /home /var to the new drive. Can someone guide me, i just made the partitions using fdisk. 
>>>
>>> 
>>>
>>>      
>>>
>>Follow these steps and it should work very well.  If nervous about 
>>following these steps, follow the steps for /home first and after it 
>>works and you are comfortable then repeat the steps to do /var.
>>Use tar because it easily maintains ownership and permissions whereas cp 
>>requires special flags to do that.
>>This all must be done as root.
>>
>>1.  create 2 mount points in /mnt.
>>        call them /mnt/home and /mnt/var
>>
>>2. mount the appropriate partition on each.
>>        mount /dev/hdb1 /mnt/home   etc.
>>
>>3. create tar files (This assumes you have at least twice the currently 
>>used space in each of the new partitons.  If not, choose a different 
>>location where space is available to create the tar files, or do just 
>>one filesystem at a time and use the other partition as the location to 
>>create that file.)
>>        #  tar cvf /mnt/home/home.tar /home
>>        #  tar cvf /mnt/var/var.tar  /var
>>
>>4. Now extract the tarball to the new partitions
>>        #  cd /mnt
>>        #  tar xvf home/home.tar
>>        #  tar xvf var/var.tar
>>5.  do a quick verification of the completeness of both new sets of 
>>files extracted.
>>    A quick way to check it is close is
>>        du -s /var
>>        du -s /mnt/var
>>    The numbers should be very close if not exact.
>>
>>6. (this one can be done now or later)
>>        If step 5 appears good then do # rm /mnt/home.tar /mnt/var/var.tar
>>
>>7. Now comes the hard (easy??) part -- actually putting the new 
>>filesystems on the mount point.
>>    a.    Edit /etc/fstab to make sure the new partitons will be mounted 
>>on /home and /var
>>    eg.    /dev/hdb1     /home   ext3    defaults        1 2
>>            /dev/hdb2     /var       ext3    defaults        1 2
>>    b.   You must remove the old contents of /home and /var _before_ you 
>>mount the new partions at that point so you have that space available. 
>>(If you do not, the space will not be available and the clearing cannot 
>>be done with the filesystem mounted at that point)
>>        (carefull on the spelling with this one)
>>        #  rm -rf /home/*
>>then
>>        #  rm -rf /var/*
>>    c:    Reboot
>>
>>If you have carefully followed all the steps above, now reboot and 
>>everything will be on the new filesystems and space previously used will 
>>be free.
>>
>>    
>>
>>> 
>>>
>>>      
>>>
>
>Hi all
>
>Hope I'm not being obvious here or have missed something!!
>
>What happens about the mkfs?
>
>Surely he has to make the file systems on the partitions BEFORE he can
>copy on to them or mount them.
>
>mkfs -t ext3 /dev/hdb1 -c -c
>
>takes a while with the 2 -c, but it will do a complete surface check,
>miss it if you are sure the disk is ok
>
>Laurence
>
>  
>
oops.  I overlooked that since he said he had already created the 
partitions.  

You are right and he needs to do that before he does step two above.
I would use     " mke2fs -j /dev/hdbX " for each of the new partitions.
I don't really think he needs the -c options since he says this is a new 
disk, but it never hurts and  the only cost is time.

>  
>