[CentOS-virt] Resize guest filesystem question

Sergiy Yegorov prapor at unixzone.org.ua
Fri Feb 24 15:28:02 EST 2012


Fri, 24-Feb-2012 12:05:55 Jeff Boyce wrote:

> 6.  Then I ran  resize2fs /dev/vda2  and got the result that the filesystem
> is already xx blocks long.  Nothing to do!
Before you can resize filesystem, you have to resize partition.
If it is only 2 partitions on /dev/vda, you can use one of two ways:
1. Resize partition from host system (I think it is not the best idea for root 
partition operations):
 Run fdisk /dev/vg/lv_guest1root, delete second partition and create new one 
which starts from the same place but takes all available space, after it you 
can boot guest (in single mode) and run resize2fs.
2. Boot VM from any 3-party (LiveCD or any) with access to virtual disk, and 
do the same: in fdisk delete existing partition, create new one and run 
resize2fs on it. Or just use parted to do it in one command.

-- 
With best regards
Sergiy Yegorov
RHCSA
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