Difference between revisions of "Server Administration"

Revision as of 11:16, 25 January 2010

Updating the server

Install yumex (YUM eXtender GUI for yum)

sudo yum install yumex

Install new hard drive

After plugging in new hard drive, find the drive by typing

ll /dev/sd*

The new drive show show up here in this list. In this case, it is /dev/sdc

fdisk /dev/sdc

Using fdisk, create a new ext3 partition containing the entire hard drive. This actually reserves 5% of the disk for root. To remove this reservation, use tune2fs to set this to 0.

tune2fs -m 0 /dev/sdc1

Now create a new mount point in /media..

mkdir /media/new_drive

Edit /etc/fstab to add the new drive, such as the line

/dev/sdc1 /media/new_drive ext3 defaults,user,rw 0 0 

Now mount the new partition using

mount /media/new_drive

Use df to make sure the new drive is up and you have the right amount of free space

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              99M   87M  7.5M  93% /boot
/dev/sdb1             459G  232G  204G  54% /media/sdb1
/dev/sdc1             917G  109M  871G   1% /media/hdock

In case you are having trouble unmounting a volume, use lazy unmount -l. This does not force an unmount, rather it waits until the device stops being busy.

umount -l hdock/