Extending LVM partition??

your_shadow03 · 01-15-2009, 11:25 PM

I have Installed a new RHEL 4 AS Update 6 on my HP Proliant machine.
I created LVM during the installation phase. Now I want to extend one of the /dev/VolGroup00/tomcat partition from 1 GB to 2 GB.
I ran the command :

lvextend -L2G /dev/volgroup00/tomcat
and it says:

Successfuly extended.

Do I need to run any more command for the same?
Is it Done?

kenneho · 01-16-2009, 01:21 AM

Hi.

Does "df -h" report that your partition har increased in size? I wouldn't think so, so you have to run "mkfs.ext3" (or somthing like that depending on your file system type). Are you running ext3?

EDIT: As brianmcgee points out, you should run resize2fs, NOT mkfs. My bad (too early in the morning).

brianmcgee · 01-16-2009, 01:25 AM

You need to enlarge your filesystem to fill out the new available space. Do so with the following command:

Code:

# resize2fs /dev/volgroup00/tomcat

ZAMO · 01-16-2009, 02:43 AM

Do reisefs extend the partition without a valid file system from the new disk? Is it possible to make filesystem(using mkfs or mk2efs) on a volume group?

How/where the file system created here for the new VG attached to LVM using resize2fs?