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A comment on 8GB Raspberry Pi 4 on sale now at $75. Parent comment

Re:8GB Raspberry Pi 4 on sale now at $75 by notanote on Thursday May 28, 2020 @11:50AM (#23338707)
When using netboot, the boot rom will pull the files it needs from the tftp server. It will first look for them in a subdirectory with the Pi’s serial number as its name.

If you’re netbooting without any sdcard installed, I’d suggest disabling sd polling.

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Re:8GB Raspberry Pi 4 on sale now at $75 by buggeryorkshire on Thursday May 28, 2020 @12:05PM (#23338883)
PXE uses the MAC address doesn't it?
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Re:8GB Raspberry Pi 4 on sale now at $75 by jedieaston on Thursday May 28, 2020 @12:26PM (#23339158)
It does, but I think what the Pi does is connect to the TFTP server handed out by PXE and then look for a folder named serial-number. If it doesn't exist in the path PXE gave it it just boots whatever is in the tftproot.
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Re:8GB Raspberry Pi 4 on sale now at $75 by vetinari on Thursday May 28, 2020 @04:39PM (#23342250)
Might or might not. It does DHCP request and server-side, you can do decision on what it returns on any tag you want, often client architecture (0x93); you can then point to the right tftp server, or if you have UEFI client, you can also use http.
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