[kwlug-disc] Relative paths Ubuntu 18.04 vs 20.04

[L.D. Paniak]

The expectations here for paths relative to the location of pxelinux.0
are hardwired into pxelinux.0

https://wiki.syslinux.org/wiki/index.php?title=PXELINUX

There is not much that can be done with it without reworking the
pxelinux.0 binary.

These days, I have moved to EFI PXE boot/install with grub and grubx64.efi

On 5/19/21 10:10 AM, Charles M wrote:
> I've set up a couple of PXE servers, one with Ubuntu server 18.04 and
> one using Ubuntu server 20.04. Both have almost identical
> apache2/conf-available/tftp.cfg files that look like this:
>
> <Directory /srv/tftpboot>
>         Options +FollowSymLinks +Indexes
>         Require all granted
> </Directory>
> Alias /tftp /srv/tftpboot
>
> I say almost because on 18.04 I'm using /var/lib/tftpboot and on 20.04
> using /srv/tftpboot. I'm wondering if this difference is the reason I
> have to use ../../ in pxelinux.cfg/default when referring to
> directories/files within /srv/tftpboot?
>
> For example: On  the 18.04 server a line in pxelinux.cfg/default might look like
>
> KERNEL ubuntu/vmlinuz
>
> But in 20.04 I have to refer to it using:
>
> KERNEL ../../ubuntu/vmlinuz
>
> Besides being lazy, I really just want it to look a lot cleaner. Is it
> because tftpboot is in /srv, or is there a way to fix this in 20.04?
>
> Thanks,
>
> Charles
>
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