Extend disk size /dev/mapper/pbs-root

[ColinDexter]

My backup server runs on an 8G VM. Now the disk space appears to be too small and I increased it to 16G.
Just how do I add this extra 8G available to the system. I've already tried everything. I can see it now in the overview of the disk. But I think I still have to add it to /dev/mapper/pbs-root. But I can't get it added to /dev/mapper/pbs-root.

 

[news]

Please show the disk table, with i.g. cfdisk <device>.
If the extra space at the end of the Datastore, then you can use the lvm tools.

 

[ColinDexter]

I added the free space with cfdisk to /dev/sda3. Only I don't see it back.

 

[Dark26]

It's a lvm partition; you have to resizez the PV after resizing the partition.

pvresize /dev/sda3

with that you vg should have free space now.

verify with vgdisplay

and after that you have to extend the lv volume for the root partition

for example for adding 4Go to the partition :

lvextend -L+4G /dev/dev/mapper/pbs-root

and after that you hace to extend the file system ( xfs_growfs if xfs filesystem or resize2fs if its ext4 ..... )

 

[ColinDexter]

I used the wrong command. With lvresize --extents +100%FREE --resizefs /dev/mapper/pbs-root it worked.
Only I still see 6G in the dashboard :-(

 

[Dark26]

can we have the result of

vgdisplay

lvdisplay

 

[ColinDexter]

vgdisplay


lvdisplay



with lvresize --extents +100%FREE --resizefs /dev/pbs/rootI have now


Thanks for your help. I was able to solve it based on your questions