[syslinux] EFI Reboot Timer

Gene Cumm gene.cumm at gmail.com
Sat Jan 16 05:55:02 PST 2016


On Sat, Jan 16, 2016 at 8:49 AM, Celelibi via Syslinux
<syslinux at zytor.com> wrote:
> 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.

Direct addressing of IPv4 should just work, even if targeting other servers.

-- 
-Gene



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