How to use added harddrive

So, I ran out of room on my CentOS install. Now, added a 32G virtual hdd to the CentOS install but when I go into my install's Terminal window and type 'df' I don't see the additional harddrive space.

How do I make use of the added space of the virtual hdd?

Thanks

 

If you added new drive, you should first create partition
fdisk /dev/sdb
then create file system mkfs
then mount it

 

Thanks.

I did the following:

# su -
# fdisk /dev/sdb

However, that resulted in 'Unable to open /dev/sdb.'

Might it be that on my instance, there is no 'sdb' because it is called something else? If so, what do I look for?

 

what is in dmesg, can you see new device?
Maybe you attached it to chanel 1:0 or 1:1
try /dev/sdc /dev/sdd

 

I see:

hdd
hdc
hdb
hda

 

so , did you try them try fdisk on them, I don't know your configuration.
Perhaps you set CDrom to 0:1, or 1:0
just use mount, it will show root , and check others

 

Ok, so I did this now:

# su -
# fdisk /dev/hdd (and selected 'w')
# mkfs /dev/hdd

Now, how do I mount this? I tried this:

# mount /dev/hdd

But that resulted in:
mount: can't find /dev/hdd in /etc/fstab or /etc/mtab

Thanks

 

sudo mkdir /somedir
sudo mount /dev/hdd /somedir
or edit /etc/fstab and add option to mount at startup

 

Great. This worked!

Thank you John.