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On the server there is 4GB memory and 4GB swap file on TEST server which is not enough.
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Now the existing swap partition is created in lvm and there is no scope to increase the size
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To overcome this problem create a swapfile using dd command with permission 0600
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Change the file permission to 0600
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Set the file as swap area
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Test by enabling the swap on swapfile
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Make this boot persistent by adding the entry in fstab
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Always run mount -a command to check if any error in fstab file
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Now disable swap on /swapfile which we have enabled manually and check swap partitions
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Now check boot persistence by swapon command
Uncategorized
Enabling rc.local in debian9
rc.local is deprecated in debian 9 by default
To enable it
- create file /etc/systemd/system/multi-user.target.wants/rc.local.service
vi /etc/systemd/system/multi-user.target.wants/rc.local.service
[Unit]
Description=/etc/rc.local
ConditionPathExists=/etc/rc.local
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99
[Install]
WantedBy=multi-user.target
2. #systemctl daemon-reload
3. #systemcl restart rc.local.service
Enabling usb wifi on CentOS 7
Enabling usb wifi on Centos is really a difficult job. most of the times it requires drivers compilation and adding /removing modules which may be time consuming.
Its better to upgrade kernel to the latest release
To upgrade the kernel without kernel compilation follow below steps
Step 1: Install elrepo to your CentOS 7 system
# rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
# rpm -ivh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
# yum –enablerepo=elrepo-kernel list available |grep kernel
# yum –enablerepo=elrepo-kernel install kernel-ml* (select kernel-ml as they are the stable release kernels)
# grub2-set-default “CentOS Linux (4.18.1-1.el7.elrepo.x86_64) 7 (Core)”
reboot your system and configure network to the wireless usb card.
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Hi I am Akash and this is my website for Linux.
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