How to resize root partition using resize2fs in opensuse 12.1

Discussion:

yanliang

2012-03-28 23:05:23 UTC

HI all,

I want to enlarge my root partition.So I use the resize2fs command.
But when I run the command,I got the following information:

linux-ua9t:~ # resize2fs /dev/sda8 20G
resize2fs 1.41.14 (22-Dec-2010)
The filesystem is already 5242880 blocks long. Nothing to do!

How can I enlarge my root partition?

Thanks.

Brad Yan

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Felix Miata

2012-03-29 00:56:05 UTC

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Post by yanliang
I want to enlarge my root partition.So I use the resize2fs command.
linux-ua9t:~ # resize2fs /dev/sda8 20G
resize2fs 1.41.14 (22-Dec-2010)
The filesystem is already 5242880 blocks long. Nothing to do!
How can I enlarge my root partition?

There are two parts to resizing a conventional partition:

1-changing the partition size (in the partition tables)

2-conforming the filesystem size to the partition size

Resize2fs is only for #2. #1 has to be done first, using a partitioning tool.
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Anton Aylward

2012-03-29 00:59:25 UTC

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First, check the list archives.
This seems recurring question.
Has it been transferred to the Wiki?
I know I've answered it at least twice.

The short answer is that 'resize2fs;' is for resizing the file system.
It can only grow as big as the partition.

Unless you use LVM your partitions are set when you did the install and
you can see them with tools like gparted (for graphics) or cfdisk (for CLI).

You can't simply move the end point of one partition to make it larger
since that will overwrite the start of the next partition and the file
system there. A good way to hose your system.

That is why I recommend using LVM whenever you install a system.

All this is discussed back in the list archives as well as other approaches.

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John Andersen

2012-03-29 18:03:44 UTC

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Post by yanliang
HI all,
I want to enlarge my root partition.So I use the resize2fs command.
linux-ua9t:~ # resize2fs /dev/sda8 20G
resize2fs 1.41.14 (22-Dec-2010)
The filesystem is already 5242880 blocks long. Nothing to do!
How can I enlarge my root partition?
Thanks.
Brad Yan

Download this Bootable live CD.
http://gparted.sourceforge.net/download.php
Burn to CD, and boot from it.
Its a one stop shopping center for this kind of operation.
It does both parts, partition size and filesystem size.
Read the info in the yellow box on that page.

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Jim Flanagan

2012-03-29 18:19:54 UTC

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I had good luck with cfdisk. Install it using Yast. See email from
previous post here http://lists.opensuse.org/opensuse/2012-03/msg00258.html

Good luck, and perhaps back up first.

Jim F

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