Subj : Re: Eeprom updates on a Pi2? To : All From : The Natural Philosopher Date : Wed Dec 10 2025 10:04:34 On 09/12/2025 20:54, bp@www.zefox.net wrote: > The Natural Philosopher wrote: >> On 09/12/2025 18:58, Knute Johnson wrote: >>> On 12/9/25 12:52, bp@www.zefox.net wrote: >>>> Knute Johnson wrote: >>>>> On 12/9/25 10:29, bp@www.zefox.net wrote: >>>>>> My Pi2 v1.1 running Trixie just announced that updates are availalbe. >>>>>> However, they're eeprom updates. To my knowldge a Pi2 has no eeprom. >>>>>> Still, if I let the updater run it makes a big ceremony of downloading >>>>>> and installing _something_. >>>>>> >>>>>> What's going on? >>>>>> >>>>>> Thanks for reading, apologies for the recent flood of questions.... >>>>>> >>>>>> bob prohaska >>>>>> >>>>> >>>>> Only Pi4 and Pi5s have eeprom.ÿ But all get the update so that if you >>>>> put that uSD card in a Pi4 or a Pi5 it will update it. >>>>> >>>> Since there's no eeprom on the Pi2 does the update downloaded and >>>> stashed somewhere on the microSD? Or is it installed to /dev/null ? >>>> >>>> Thanks for writing, >>>> >>>> bob prohaska >>>> >>> >>> It gets stashed on the card somewhere. >>> >> IIRC there is a bunch of machine level stuff in the FAT partition - >> mounts as /boot/firmware - in a live SD situation >> >> These might as well be EEprom really! What else is an SD card? >> > > That's a happy thought but I'm skeptical. If it were true I'd have > a lot less trouble booting from USB drives 8-) > Well those perform the same function as the SD card on a Pi. I think the issue is that the - ahem *BIOS* - on a Pi is more primitive than a DOS PC used to be. It just grabs a FAT formatted storage device and looks for a specific bunch of files there and those are the *real* bios. Isn't that lost in the history of the chips used being designed for Smart TVs? -- ?A leader is best When people barely know he exists. Of a good leader, who talks little,When his work is done, his aim fulfilled,They will say, ?We did this ourselves.? ? Lao Tzu, Tao Te Ching --- PyGate Linux v1.5.2 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10) .