Hi Tom,

To complement Mark's post:

Here is basically how to add dasds permanently (root and non root): 
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/Installation_Guide/index.html#ap-s390info-Adding_DASDs


-
Filipe


On Aug 19, 2013, at 9:11 AM, Mark Post <mp...@suse.com> wrote:

>>>> On 8/19/2013 at 10:08 AM, Tom Huegel <tehue...@gmail.com> wrote: 
>> FEDORA 18
>> 
>> etc/fstab
>> # Created by anaconda on Tue Jan 22 07:01:13 2013
>> #
>> # Accessible filesystems, by reference, are maintained under '/dev/disk'
>> # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
>> #
>> /dev/mapper/fedora_fedora-root /                       ext4
>> defaults        1 1
>> /dev/mapper/fedora_fedora-boot /boot                   ext4
>> defaults        1 2
>> /dev/disk/by-path/ccw-0.0.025f-part1 swap                    swap
>> defaults        0 0
>> /dev/mapper/fedora_fedora-swap swap                    swap
>> defaults        0 0
> 
> OK, you're in luck.  Your root file system (which is your only "real" file 
> system) is on an LVM logical volume.
> 
> You should have a chccwdev command to bring your new DASD volumes online.  
> But, I'm not familiar with the Fedora process to make that persistent across 
> reboots.  It could be something in /etc/zipl.conf, or a udev rule somewhere.
> 
> Don't add the new DASD volume to LVM until you're sure it will come back 
> online after rebooting.  If it doesn't, you won't be able to get your system 
> up far enough to (easily) fix things.
> 
> Once you're sure it's persistent, then most likely this will be /dev/dasdb.  
> If so, then:
> 1. dasdfmt -b 4096 -p -y /dev/dasdb
> 2. fdasd -a /dev/dasdb
> 3. pvcreate /dev/dasdb1
> 4. vgextend fedora /dev/dasdb1
> 5. lvresize -L +??? /dev/fedora/root
>  where ??? is the amount of space that "vgdisplay" says you now have 
> available.
> 
> 
> Mark Post
> 
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