Following is how parted print looks like:
(parted) print
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 26.8GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 271MB 271MB primary ext2 boot
2 271MB 1349MB 1078MB primary linux-swap
3 1349MB 26.8GB 25.5GB primary lvm
The volume group created on /dev/sda3 looks like the following
--- Volume group ---
VG Name rootvg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 8
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 7
Open LV 7
Max PV 0
Cur PV 1
Act PV 1
VG Size 23.62 GB
PE Size 128.00 MB
Total PE 189
Alloc PE / Size 162 / 20.25 GB
Free PE / Size 27 / 3.38 GB
VG UUID 1Wzcpj-bNMD-cIYr-pOwA-1jdP-f9wE-wiEitV
That means there is 3.38G unused space.
I want to resize my swap partition /dev/sda2 to use 1GB out of the above space. How can I achieve that?
Best Answer
Linux can use multiple swap partitions as part of it's swap pool, so what your asking is easily acheived by creating a swap volume inside of the LVM and turning it on. Here's an overview:
Use lvcreate to create the logical volume:
Format the space as swap space:
Activate the swap space:
Don't forget to update your fstab to mount the new swapspace at boot time. This should be as simple as copying the existing line that mounts /dev/sda2 as swap and changing that to /dev/rootvg/swap2.