PXE Boot : Diskless Client2015/06/26 |
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Boot your client computer which has no local hard drive from PXE server.
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| [1] | |
| [2] | Install required packages. |
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[root@dlp ~]# yum -y install dracut-network nfs-utils
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| [3] | Build a system for diskless clients on PXE server. |
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[root@dlp ~]#
mkdir -p /var/lib/tftpboot/centos7/root [root@dlp ~]# yum groups -y install "Server with GUI" --releasever=7 --installroot=/var/lib/tftpboot/centos7/root/ # generate encrypted root password (remeber it) [root@dlp ~]# python -c 'import crypt,getpass; \
Password:print(crypt.crypt(getpass.getpass(), \ crypt.mksalt(crypt.METHOD_SHA512)))' $6$EC1T.oKN5f3seb20$y1WlMQ7Ih424OwOn.....
[root@dlp ~]#
vi /var/lib/tftpboot/centos7/root/etc/shadow # set root password generated above
root:
$6$EC1T.oKN5f3seb20$y1WlMQ7Ih424OwOn..... :16372:0:99999:7:::
[root@dlp ~]#
vi /var/lib/tftpboot/centos7/root/etc/fstab none /tmp tmpfs defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0
[root@dlp ~]#
wget -P /var/lib/tftpboot/centos7/ \
http://mirror.centos.org/centos/7/os/x86_64/images/pxeboot/vmlinuz \ http://mirror.centos.org/centos/7/os/x86_64/images/pxeboot/initrd.img
[root@dlp ~]#
vi /var/lib/tftpboot/pxelinux.cfg/default # create new
default centos7
label centos7
kernel centos7/vmlinuz
append initrd=centos7/initrd.img root=nfs:10.0.0.30:/var/lib/tftpboot/centos7/root rw selinux=0
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| [4] | Configure NFS server to share system files with clients |
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[root@dlp ~]#
vi /etc/exports
/var/lib/tftpboot/centos7/root 10.0.0.0/24(rw,no_root_squash)
systemctl start rpcbind nfs-server [root@dlp ~]# systemctl enable rpcbind nfs-server |
| [5] | It's OK to configure. Start a diskless computer which is enabled network booting on BIOS settings, then, system will boot like follows. |
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