Currently I am using oravirt (Mikael Sandström) · GitHub (https://github.com/oravirt) vagrant boxes.
The swap is too small, wanted to increase for 18c upgrade test, tired of doing this manually, and here’s a script for that.
#!/bin/sh -x swapon --show free -h rm -fv /swapfile1 dd if=/dev/zero of=/swapfile1 bs=1G count=16 ls -lh /swapfile? chmod 0600 /swapfile1 mkswap /swapfile1 swapon /swapfile1 swapon --show free -h echo "/root/swapfile1 swap swap defaults 0 0" >> /etc/fstab cat /etc/fstab exit
Script in action:
[root@racnode-dc1-2 patch]# ./mkswap.sh
+ swapon --show
NAME TYPE SIZE USED PRIO
/dev/dm-1 partition 2G 33M -1
+ free -h
total used free shared buff/cache available
Mem: 5.6G 4.0G 114M 654M 1.4G 779M
Swap: 2.0G 33M 2.0G
+ rm -fv /swapfile1
+ dd if=/dev/zero of=/swapfile1 bs=1G count=16
16+0 records in
16+0 records out
17179869184 bytes (17 GB) copied, 42.7352 s, 402 MB/s
+ ls -lh /swapfile1
-rw-r--r-- 1 root root 16G Apr 14 15:18 /swapfile1
+ chmod 0600 /swapfile1
+ mkswap /swapfile1
Setting up swapspace version 1, size = 16777212 KiB
no label, UUID=b084bd5d-e32e-4c15-974f-09f505a0cedc
+ swapon /swapfile1
+ swapon --show
NAME TYPE SIZE USED PRIO
/dev/dm-1 partition 2G 173.8M -1
/swapfile1 file 16G 0B -2
+ free -h
total used free shared buff/cache available
Mem: 5.6G 3.9G 1.0G 189M 657M 1.3G
Swap: 17G 173M 17G
+ echo '/root/swapfile1 swap swap defaults 0 0'
+ cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Tue Apr 18 08:50:14 2017
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/ol-root / xfs defaults 0 0
UUID=ed2996e5-e077-4e23-83a5-10418226a725 /boot xfs defaults 0 0
/dev/mapper/ol-swap swap swap defaults 0 0
/dev/vgora/lvora /u01 ext4 defaults 1 2
/root/swapfile1 swap swap defaults 0 0
+ exit
[root@racnode-dc1-2 patch]#