Re treatment on spare space

Re treatment on spare space - HD

Hi all,

Fedora 18 desktop 64bit, newly installed

The capacity of the HD is 2TB

$ df -h

Code:

Filesystem Size Used Avail Use% Mounted on devtmpfs 16G 0 16G 0% /dev tmpfs 16G 4.7M 16G 1% /dev/shm tmpfs 16G 9.4M 16G 1% /run tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/mapper/fedora-root00 97G 4.3G 87G 5% / tmpfs 16G 20K 16G 1% /tmp /dev/sda1 236M 138M 86M 62% /boot /dev/mapper/fedora-data 1.5T 470G 900G 35% /data

$ sudo fdisk -l

Code:

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00064d3a Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 499712 3279364095 1639432192 8e Linux LVM Disk /dev/sdb: 120.0 GB, 120034123776 bytes, 234441648 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000cde8a Device Boot Start End Blocks Id System /dev/sdb1 * 2048 499711 248832 83 Linux /dev/sdb2 501758 234440703 116969473 5 Extended /dev/sdb5 501760 234440703 116969472 8e Linux LVM Disk /dev/mapper/fedora-swap: 1048 MB, 1048576000 bytes, 2048000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/fedora-root00: 104.9 GB, 104857600000 bytes, 204800000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/localhost-root: 85.5 GB, 85513469952 bytes, 167018496 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/localhost-swap_1: 34.3 GB, 34259075072 bytes, 66912256 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/fedora-data: 1572.9 GB, 1572864000000 bytes, 3072000000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes

I shall use this PC for virtualization running Oracle VirtualBox.

There are some spare space on the HD not used/installed. Pls advise;

1)
How to expand /dev/mapper/fedora-data taking up the rest unused space instead of reinstalling the complete system?

OR

2)
At the present moment I don't need such a big space on /dev/mapper/fedora-data. What/How shall I use the spare/uninstalled space, now or in future?

TIA

B.R.
satimis

try parted or live image of gparted (GParted -- Live CD/USB/PXE/HD)

Since fedora-data is a logical volume, you need to do 3 things:

Expand the LVM partition on /dev/sda
Use the LVM tool to resize the volume
Use resize2fs to resize the file system

Note that is is dangerous to shrink a logical volume. To do that safely, save the data to an external drive, re-partition the drive, reducing the space used for LVM, reconfigure LVM, rebuild the file system, and then restore your data.

That said, NixSavy has a good idea to check out parted/gparted. I haven't worked with them, but they may do all that for you... :-)

Hi all,

Tks for your advice.

My original setup on the HD was making it dualboot leaving some space for testing clouds. Because some of them need bare metal to run. Now I'm prepared abandoning such an arrangement. Because I found several spare old HDs, 180G, 500G and 600G. I can use them testing cloud.

Frankly speaking 1.5T space on /dev/mapper/fedora-data is more than sufficient for my use including in the foreseeable future.

Leave the unalloted space there?

To resize /dev/mapper/fedora-data won't take me lot of work nor any risk. Because this is a new box without data on it. In the worst case if something goes wrong on resizing I just reinstall Fedora. But if there are VMs running on it, there will be lot of work to do in resizing /dev/mapper/fedora-data.

Oh, I almost forgot. Fedora installer has a wonderful tool resizing LVs on the fly. Several months back I ran it resizing HD making the latter dualboot. Ubuntu 12.04 was running on the HD occupying the entire HD capacity. I ran Fedora installer resizing the HD to install Fedora on the space obtained. Wonderful, it was very easy without failure. I did it at least 3~4 times.

B.R.
satimis