All the credits go to Arjen Visser @ http://www.dbvisit.com/forums/showthread.php?t=343. I add his article and I edited a little because of some error I get and I a’m able to find it quickly the next time 🙂
Here is the current file system. It needs another 3Gb on the LogVol00 filesystem. The Linux system is a VMware virtual system with Virtual disks.
[root@dbvrac1 ~]# df -k Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 9127580 6692828 1971088 78% / /dev/sda1 101086 12651 83216 14% /boot none 596544 0 596544 0% /dev/shm
The partitions are as follows
[root@dbvrac1 ~]# sfdisk -s /dev/sda: 10485760 /dev/sdb: 10485760 /dev/sdc: 10485760 /dev/sdd: 10485760 /dev/sde: 10485760 /dev/sdf: 10485760
First the Vmware virtual disks needs to increase. 13Gb is the new size. Shutdown the Vmware guest and resize the disk on the Vmware host:
# vmware-vdiskmanager -x 13GB dbvrac1.vmdk Using log file /tmp/vmware-root/vdiskmanager.log The old geometry C/H/S of the disk is: 1305/255/63 The new geometry C/H/S of the disk is: 1697/255/63 Disk expansion completed successfully.
Start up the Vmware guest again.
This has added space on the /dev/sda partition. This can be seen by running sfdisk -s again:
[root@dbvrac1 ~]# sfdisk -s /dev/sda: 13631488 /dev/sdb: 10485760 /dev/sdc: 10485760 /dev/sdd: 10485760 /dev/sde: 10485760 /dev/sdf: 10485760
To use the space, a partition first has to be created on /dev/sda
[root@dbvrac1 ~]# ls -al /dev/sda* brw-rw---- 1 root disk 8, 0 Jun 29 2009 /dev/sda brw-rw---- 1 root disk 8, 1 Jun 29 2009 /dev/sda1 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda2
The new partition will be /dev/sda3.
[root@dbvrac1 /]# fdisk /dev/sda
Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 3 First cylinder (1306-1697, default 1306): Using default value 1306 Last cylinder or +size or +sizeM or +sizeK (1306-1697, default 1697): Using default value 1697 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. Validate that the new partition has been created
[root@dbvrac1 ~]# ls -al /dev/sda* brw-rw---- 1 root disk 8, 0 Jun 29 2009 /dev/sda brw-rw---- 1 root disk 8, 1 Jun 29 2009 /dev/sda1 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda2 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda3
/dev/sda3 is the new partition. Reboot to load the new partition into the kernel.Create a physical volume for LVM:
[root@dbvrac1 ~]# pvcreate /dev/sda3 Physical volume "/dev/sda3" successfully created
I had some problems and get the error:
Device /dev/sda3 not found (or ignored by filtering). To fix thix error:
Command (m for help): n Command action l logical (5 or over) p primary partition (1-4) l First cylinder (6267-7832, default 6267): Using default value 6267 Last cylinder or +size or +sizeM or +sizeK (6267-7832, default 7832): Using default value 7832 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. Validate that the new partition has been created
[root@dbvrac1 ~]# ls -al /dev/sda* brw-rw---- 1 root disk 8, 0 Jun 29 2009 /dev/sda brw-rw---- 1 root disk 8, 1 Jun 29 2009 /dev/sda1 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda2 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda3 brw-rw---- 1 root disk 8, 2 Jun 29 2009 /dev/sda5
and then:
[root@dbvrac1 ~]# pvcreate /dev/sda5 Physical volume "/dev/sda5" successfully created
Add the new physical volume to the volume group:
[root@dbvrac1 ~]# vgextend VolGroup00 /dev/sda3 Volume group "VolGroup00" successfully extended
Extend the logical volume over the new space in the volume group.
Find out how much more space can be added:
[root@dbvrac1 ~]# vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 12.88 GB PE Size 32.00 MB Total PE 412 Alloc PE / Size 315 / 9.84 GB Free PE / Size 97 / 3.03 GB VG UUID 7yenoW-lzsd-xK8a-j2Vj-qgty-TFXK-L0lhTL There is 3.03Gb available. Extend the volume: [root@dbvrac1 ~]# lvextend -L+3.03G /dev/VolGroup00/LogVol00 Rounding up size to full physical extent 3.03 GB Extending logical volume LogVol00 to 11.88 GB Logical volume LogVol00 successfully resized
Resize the filesystem:
[root@dbvrac1 ~]# resize2fs /dev/VolGroup00/LogVol00 resize2fs 1.35 (28-Feb-2004) /dev/VolGroup00/LogVol00 is mounted; can't resize a mounted filesystem!
Cannot use resize2fs as it is online. Use ext2online instead.
[root@dbvrac1 ~]# ext2online /dev/VolGroup00/LogVol00 ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b
Check file system:
[root@dbvrac1 ~]# df -k Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 12256820 6695112 4940796 58% / /dev/sda1 101086 12651 83216 14% /boot none 596544 0 596544 0% /dev/shm All done! Filesystem has increased from 9127580 to 12256820.
Original article: http://www.dbvisit.com/forums/showthread.php?t=343