In this example, we assume (1) The IP address of your PXE server is 192.168.120.254, (2) the customized script (custom-ocs-2) is put on your PXE server's tftpd root dir (E.g. On DRBL server, the path is /tftpboot/nbi_img/. It might be different in your case if you are not using DRBL server as a PXE server).
Therefor your pxelinux.cfg/default file is like:
------------------------
label Clonezilla Live
MENU DEFAULT
# MENU HIDE
MENU LABEL Clonezilla Live
# MENU PASSWD
kernel vmlinuz1
append initrd=initrd1.img boot=live union=overlay username=user config components quiet noswap edd=on nomodeset enforcing=0 noeject vga=788 fetch=tftp://192.168.120.254/filesystem.squashfs ocs_prerun="busybox tftp -g -r custom-ocs-2 -l /tmp/custom-ocs-2 192.168.120.254" ocs_live_run="bash /tmp/custom-ocs-2" keyboard-layouts=NONE ocs_live_batch="no" locales="en_US.UTF-8" nolocales
TEXT HELP
Boot Clonezilla live via network
ENDTEXT
------------------------
//NOTE// Remember to check the boot parameters on the Clonezilla live iso/zip file. It might change.
The content of custom-ocs-2 can be like:
------------------------
#!/bin/bash
. /usr/share/drbl/sbin/drbl-conf-functions
. /etc/drbl/drbl-ocs.conf
. /usr/share/drbl/sbin/ocs-functions
. /etc/ocs/ocs-live.conf
# Load language file
ask_and_load_lang_set en_US.UTF-8
# 1. Mount the clonezilla image home.
# Types: local_dev, ssh_server, samba_server, nfs_server
prep-ocsroot -t nfs_server
# 2. Restore the image
if mountpoint /home/partimag/ &>/dev/null; then
ocs-sr -l en_US.UTF-8 -c -p choose restoredisk ask_user ask_user
else
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "Fail to find the Clonezilla image home /home/partimag!"
echo "Program terminated!"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
------------------------
//NOTE// Remember to add shebang line (#!/bin/bash) in your script to avoid a "Exec format error" issue.
For more boot parameters, please refer to this doc.
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