I am looking for the syntax of dhcp vendor options, and then how to access
them in grub-net. I think. maybe there is a better way.
I pxe boot grub, which boots di (Debian Installer) and pass a preseed file.
I am trying to work out a nice way to pass host specific info to di
example, most use:
partman-auto/disk="/dev/sda"
but one machine has an onboard ssd nvme which needs /dev/nvme0n1
di will read values appended to the kernel boot line, so I can hard code it
like this:
menuentry "Install Ubuntu preseed" {
set gfxpayload=keep
linux /ubuntu-installer/amd64/linux gfxpayload=800x600x16,800x600 ---
auto=true url=dc10b hostname= partman-auto/disk="/dev/nvme0n1"
interface=${net_default_mac}
initrd /ubuntu-installer/amd64/initrd.gz
}
interface=${net_default_mac} - use the nic that pxe booted.
Now I get lost in conf options and syntax. forgive me for making stuff up
here, if it worked I wouldn't be asking for help.
I am hoping for something like
partman-auto/disk=$(net_pxe_extensionspath/disk}
in dnsmasq conf:
dhcp-host=40:8d:5c:7f:bb:90,,gator
dhcp-option-force=host:gator,209,"disk=/dev/nvme0n1"
So yeah, how do I send random strings based on mac/hostname
and how do I read what was sent in grub?
--
Carl K
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