To add more disk space to a LINUX Oracle Virtual Machine image, create the disk via the OVM administration console under the specific server that needs access to the disk. Then log in to the server and perform the commands below. This will format the newly created device and make it available to the image and ensure it is mounted at boot time.
root@myserver ~]# fdisk -l /dev/xvdc
Disk /dev/xvdc: 104.8 GB, 104857600000 bytes
255 heads, 63 sectors/track, 12748 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/xvdc doesn't contain a valid partition table
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Create the partitions
root@myserver ~]# fdisk /dev/xvdc
The number of cylinders for this disk is set to 12748.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-12748, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-12748, default 12748): 800
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (801-12748, default 801):
Using default value 801
Last cylinder or +size or +sizeM or +sizeK (801-12748, default 12748):
Using default value 12748
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@myserver ~]# /sbin/mkfs -t ext3 /dev/xvdc2
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
12009472 inodes, 23993077 blocks
1199653 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
733 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 35 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@myserver ~]# /sbin/e2label /dev/xvdc2 u02
[root@myserver ~]# mkswap -L SWAP3 /dev/xvdc1
Setting up swapspace version 1, size = 6580187 kB
LABEL=SWAP3, no uuid
[root@myserver ~]# swapon -L SWAP3
[root@myserver ~]# fdisk -l
Disk /dev/xvda: 12.8 GB, 12884901888 bytes
255 heads, 63 sectors/track, 1566 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 13 104391 83 Linux
/dev/xvda2 14 1305 10377990 83 Linux
/dev/xvda3 1306 1566 2096482+ 82 Linux swap / Solaris
Disk /dev/xvdb: 18.8 GB, 18874368000 bytes
255 heads, 63 sectors/track, 2294 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/xvdb1 1 390 3132643+ 82 Linux swap / Solaris
/dev/xvdb2 391 2294 15293880 83 Linux
Disk /dev/xvdc: 104.8 GB, 104857600000 bytes
255 heads, 63 sectors/track, 12748 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/xvdc1 1 800 6425968+ 83 Linux
/dev/xvdc2 801 12748 95972310 83 Linux
[root@myserver ~]# more /proc/swaps
Filename Type Size Used Priority
/dev/xvda3 partition 2096472 4 -1
/dev/xvdb1 partition 3132632 0 -2
/dev/xvdc1 partition 6425960 0 -3
[root@myserver ~]# mkdir /u02
Edit /etc/fstab
LABEL=u02 /u02 ext3 defaults 1 2
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