Il giorno sab, 13/06/2015 alle 17.01 +0300, Angelo Moreschini ha
scritto:
Hi,
I need to adjust the swap space of my computer, and using the
commands lsblk e swapon -s :
I got the following output
- =-=-=-=-=-=-
[angelo_dev@localhost ~]$ sudo lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 931G 0 part
├─fedora_localhost-swap 253:0 0 7.8G 0 lvm [SWAP]
├─fedora_localhost-root 253:1 0 50G 0 lvm /
└─fedora_localhost-home 253:2 0 873.2G 0 lvm /home
sr0 11:0 1 1024M 0 rom
[angelo_dev@localhost ~]$ swapon -s
Filename Type Size Used Priority
/dev/dm-0 partition 8126460 0 -1
- =-=-=-=-=-=-
This makes me think that the swap space on my computer resides on the
partition / dev / dm-0, which is 'managed by LVM, and' of about 8 GB.
The RAM of the computer and 'GB, and I would initially try to bring
the swap space to 16 GB (after I might try other values ....).
Since the swap partition and 'managed by LVM should not be hard to
change its size, but it is still fairly inexperienced I would get a
little help to do this.
Your swap partition is /dev/fedora_localhost-swap
take a look at how much free space you have in LVM
sudo pvscan
PV /dev/mapper/luks-04cb7d3f-fb60-42ca-9dbe-1ae18433f62d VG vg_dododell lvm2
[196,28 GiB / 7,72 GiB free]
Total: 1 [196,28 GiB] / in use: 1 [196,28 GiB] / in no VG: 0 [0 ]
In my case 7,72 GiB free.
If you have sufficient free space in LVM you can extend swap partition
with:
sudo pvresize --size +6G /dev/fedora_localhost-swap
If you do not have sufficient LVM space free, you can shrink some other
partition, like /home, you can do that in single user mode, or logging
in with root from CTRL+Alt+F2 and without other active users, umount
/home, restrict filesystem (example 11Gb) , restrict partition (example
10 Gb), extend filesystem to max partition.
At this point you can extend the swap LVM partition.
When you have extend the swap partition, you must extend the swap area
with this command:
swapoff /dev/fedora_localhost-swap
mkswap /dev/fedora_localhost-swap
swapon /dev/fedora_localhost-swap
Hope this help
Ciao
--
Dario Lesca
(inviato dal mio Linux Fedora 22 con Gnome 3.16)