[VGLUG] how to extend / LVM partition--

[Kumar Shukla]

Hi,

Can anybody help me to unmount / partition in order to run "resize2fs
command"? I am getting "device is busy" error.

Thanks,
Kumar Shukla

[kaushal patel]

Hi Kumar,

You need not to unmount partition to extend it. Follow the below steps :

1. lvextend --size +<size you want to extend> /dev/<VGNAME>/<PARTNAME>
2. resize2fs /dev/<VGNAME>/<PARTNAME>

EG.
I have 2GB space in / partition and want to extend more 500M in to it

# lvextend --size +500M /dev/vg001/root_part or #lvextend --size 2500M /dev/vg001/root_part
# resize2fs /dev/vg001/root_part

You can check your size of partitions by "df -kh" command

Regards,
Kaushal Patel
 

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Regards,
Kaushal Patel
Network & Security Engineer,
Cyberoam QA
Elitecore Technologies Ltd.

[Kumar Shukla]

I am getting error “ you can’t resize on mounted file system” error while I run resize2fs command.

 

Thanks & regards,

 

Kumar

[Murtuza Barodwala]

hii

if u want to unmount lvm partition unmount the directory on which u have mounted the partition e.g /data or ...

thanks

On Mon, Jul 19, 2010 at 12:17 PM, Kumar Shukla <ksh...@imany.com> wrote:

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Murtuza .I. Barodawala
Red Hat Certified Security Specialist (R.H.C.S.S)
+919879399921

Ahmedabad,India

[kaushal patel]

We had on chat and resolved the issue.

Problem : Kumar has VM with RHEL 4.6 Version. Resize2FS was not working on it.

Solution : In RHEL 4 version there is another command instead off Resize2fs which has to run after lvextend command.

                   # ext2online -d /dev/vg0/lv1

The partition was extended online and working as per kumar's confirmation on change.

Courtesy : http://ajeetraina.blogspot.com/2009/05/how-to-extend-lvm-partition-online.html


Regards,
Kaushal Patel