[syslinux] EFI Reboot Timer

Celelibi celelibi at gmail.com
Sat Jan 16 05:49:19 PST 2016


2016-01-15 22:23 UTC+01:00, Bateman, Matt via Syslinux <syslinux at zytor.com>:
> I am working on setting up a global boot server that serves up files across
> the WAN. I am running into a 5 minute timer that is rebooting my hosts
> before they can complete the kernel and initrd file download.
>
> The servers in questions are HP DL60s, and they use UEFI. I am using
> syslinux.efi version 6.03. They get the kernel file from the TFTP server in
> about 2 ½ minutes, then get 2 ½ more minutes into the download of the initrd
> file when the host reboots and starts over.
>
> I see there is a 300 second timeout in pxelinux, but not sure if that
> applies to syslinux.efi as well.
>
> Is there anything I can do from DHCP or the config file that will change
> that timeout so my downloads can complete? Or is there a way to have
> syslinux.efi use something other than TFTP to get the kernel/initrd files
> (FTP, HTTP, etc)? TFTP is inherently slow across the WAN since every packet
> has to be acknowledge before the next one can be sent.
>
> Thanks,
> Matt
>

Note that there have been several bugs fixed since 6.03 regarding
network support on UEFI. I'm actually surprised you can get to
download anything.

Note also there's currently no DNS support for UEFI yet. AFAIK, you
can currently only download files from the boot server.


Best regards,
Celelibi



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