Hi again, Le Wed, 29 Mar 2017 17:24:45 +0200 Floris Bos <b...@je-eigen-domein.nl> a écrit:
> Hi, > > On 03/29/2017 05:02 PM, Albert ARIBAUD wrote: > > Le Wed, 29 Mar 2017 14:48:48 +0200 > > Floris Bos <b...@je-eigen-domein.nl> a écrit: > > > >> The PXE boot firmware implementation of the Raspberry Pi 3 > >> has a bug causing it to fail if it receives replies > >> instantly. > >> > >> As a workaround ensure there is a minimum delay of one > >> second if the client is a Pi. > >> > >> On Linux it looks up the exact receive time of the UDP > >> packet with the SIOCGSTAMP ioctl to prevent multiple > >> delays if multiple packets come in around the same time, > >> or if there already was a delay caused by a ping check. > > Just a side question: can't / won't the boot firmware be fixed? > > There is a fix. > However that requires sticking a SD card with the newer boot firmware > in the Pi, and leaving it in permanently. > > To be able to PXE boot without SD card, the firmware in the ROM of > the SoC has to be used, which is not reflashable, and -at least for > the devices currently out there- comes with this bug. Oh, OK, so that's not an upgradable firmware, that's the ROM boot. Pity. Thanks for the clarification! > Yours sincerely, > > Floris Bos Amicalement, -- Albert. _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss