PXE Boot : Diskless Clients2022/07/13 |
Start a client computer which has no local drives from booting OS image from PXE server.
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[1] | |
[2] | Install required packages on PXE server. |
[root@dlp ~]# dnf -y install dracut-network nfs-utils
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[3] | Build a System for diskless clients on PXE server. |
[root@dlp ~]#
mkdir -p /var/lib/tftpboot/centos-st9/root [root@dlp ~]# dnf group -y install "Server with GUI" --installroot=/var/lib/tftpboot/centos-st9/root/ # generate root password [root@dlp ~]# /usr/libexec/platform-python -c 'import crypt,getpass; \
Password:print(crypt.crypt(getpass.getpass(), \ crypt.mksalt(crypt.METHOD_SHA512)))' $6$PF3scDJw51cmx.....
[root@dlp ~]#
vi /var/lib/tftpboot/centos-st9/root/etc/shadow # set root password generated above root: $6$PF3scDJw51cmx..... :16372:0:99999:7:::
LANG="en_US.UTF-8"
localhost.localdomain
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[4] | Configure and Start NFS Server for diskless clients. |
[root@dlp ~]#
vi /etc/exports
/var/lib/tftpboot/centos-st9/root 10.0.0.0/24(rw,no_root_squash)
[root@dlp ~]#
systemctl enable --now nfs-server
# if Firewalld is running, allow service [root@dlp ~]# firewall-cmd --add-service=nfs [root@dlp ~]# firewall-cmd --runtime-to-permanent |
[5] | Configure for BIOS based clients. |
[root@dlp ~]#
wget -P /var/lib/tftpboot/centos-st9/ \
http://mirror.stream.centos.org/9-stream/BaseOS/x86_64/os/images/pxeboot/vmlinuz \ http://mirror.stream.centos.org/9-stream/BaseOS/x86_64/os/images/pxeboot/initrd.img
[root@dlp ~]#
vi /var/lib/tftpboot/pxelinux.cfg/default # create new default centos-st9 label centos-st9 kernel centos-st9/vmlinuz append initrd=centos-st9/initrd.img root=nfs:10.0.0.30:/var/lib/tftpboot/centos-st9/root rw selinux=0 |
[6] | That's OK. Power on a computer which is enabled network booting on BIOS settings, then, System starts from shared OS image on PXE server. |
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