RHEL/CentOS: Difference between revisions
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Created page with "[https://web.archive.org/web/20170713074314/https://devops.profitbricks.com/tutorials/configure-a-postfix-relay-through-gmail-on-centos-7/ Configure a Postfix Relay through Gm..." |
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Install VirtualBox guest additions on CentOS Stream 9: | |||
# dnf -y install gcc make bzip2 tar kernel-devel elfutils-libelf-devel | |||
# mount /dev/cdrom /mnt | |||
# cd /mnt | |||
# ./VBoxLinuxAdditions.sh |
Latest revision as of 17:25, 19 December 2021
Configure a Postfix Relay through Gmail on CentOS 7
When installing on VMware, add the following line to fix the screen resolution: vga=794
Bare metal and Virtual Machine Provisioning through Foreman Server
Create LVM Volume
# pvcreate /dev/sdb1 # vgcreate opt_vg /dev/sdb1 # lvcreate -n opt_lv -l 100%FREE opt_vg
Using Packer to create a VM with the [1](packer-builder-vsphere) plugin.
{ "builders": [ { "type": "vsphere-iso", "boot_command": [ "<tab> text ks=hd:fd0:/KS.CFG<enter><wait>" ], "boot_wait": "10s", "vcenter_server": "", "username": "[email protected]", "password": "", "insecure_connection": "true", "vm_name": "test-centos7", "cluster": "Production", "datastore": "vm-storage", "guest_os_type": "rhel7_64Guest", "ssh_username": "root", "ssh_password": "", "CPUs": 2, "RAM": 2048, "RAM_reserve_all": true, "disk_controller_type": "pvscsi", "disk_size": 32768, "disk_thin_provisioned": true, "network_card": "vmxnet3", "network": "Management", "iso_paths": [ "[ISOs] Linux/CentOS/CentOS-7-x86_64-NetInstall-1804/CentOS-7-x86_64-NetInstall-1804.iso" ], "floppy_files": [ "ks.cfg" ] } ], "provisioners": [ { "type": "file", "source": "CentOS-Base.repo", "destination": "/tmp/CentOS-Base.repo" }, { "type": "shell", "inline": ["rm /etc/yum.repos.d/CentOS-Base.repo && cp /tmp/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo && yum update -y && yum install -y vim bash-completion"] } ] }
Install VirtualBox guest additions on CentOS Stream 9:
# dnf -y install gcc make bzip2 tar kernel-devel elfutils-libelf-devel # mount /dev/cdrom /mnt # cd /mnt # ./VBoxLinuxAdditions.sh