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From: Skip Tavakkolian <skip.tavakkolian@gmail.com>
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] Plan9 on Raspberry Pi 400?
Date: Sat, 16 Jan 2021 13:24:09 -0800	[thread overview]
Message-ID: <CAJSxfmLOTxaHh46e5WGoV+QeVpofctOzCzn_B5TF+9UkY4OUdA@mail.gmail.com> (raw)
In-Reply-To: <c107175e8cadce82f0acf564bb6978a9@hamnavoe.com>

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regarding /dev/serial, this should be helpful for anyone wanting to set up
netboot.

If you have a number of RPI's that netboot, the way that the common
config.txt is segmented for each board is by using the '[serial number in
hex]' section headers. Unfortunately, netboot also requires changing the
BOOT_ORDER parameter in EEPROM, which requires access to /dev/mmcblk* and
some way of generating the proper .bin format. So Linux is still needed for
the initial setup.

On Sat, Jan 16, 2021 at 9:13 AM Richard Miller <9fans@hamnavoe.com> wrote:

> > I didn't realise the 9pi image was not up to date.
> > I'll put a new one on 9p.io today.
> 
> I've done that. Sorry for letting it get out of sync with the kernel
> source.
> 
> The new contrib/miller/9pi.img.gz has
> - the latest firmware files from the raspberry pi github
> - the update to initialise xhci firmware for pi400 and recent pi4 boards
> - a tweak to the pi4 gigabit ethernet driver to allow jumbo packets
> - a new /dev/serial device from which you can read the board serial number
> (I forget why)
> 
> Nothing outside the kernel has changed from the previous image.
> 

------------------------------------------
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  reply	other threads:[~2021-01-16 21:24 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-16 17:12 Richard Miller
2021-01-16 21:24 ` Skip Tavakkolian [this message]
2021-01-16 22:14   ` Bakul Shah
2021-01-17  7:11     ` Skip Tavakkolian
  -- strict thread matches above, loose matches on Subject: below --
2021-01-14 21:34 Mack Wallace
2021-01-14 23:05 ` Stuart Morrow
2021-01-14 23:37   ` Mack Wallace
2021-01-15  1:15     ` Skip Tavakkolian
2021-01-15 18:44       ` Mack Wallace
2021-01-15 19:54         ` Mack Wallace
2021-01-15 21:17           ` Michael Engel
2021-01-15 21:58             ` Stuart Morrow
2021-01-15 22:32             ` Bakul Shah
2021-01-15 22:52               ` Michael Engel
2021-01-16  0:31                 ` Mack Wallace
2021-01-16  1:01                   ` Michael Engel
2021-01-16 10:24                     ` Richard Miller
2021-01-16 11:28                       ` Michael Engel
2021-01-18 14:51                   ` Richard Miller
2021-01-18 15:42                     ` Mack Wallace
2021-01-18 16:54                       ` ori
2021-01-19  8:20                         ` hiro
2021-01-19  0:54                       ` Stuart Morrow
2021-01-19  4:13                         ` Lucio De Re
2021-01-19  9:52                           ` Richard Miller
2021-01-20 15:25                             ` Mack Wallace
2021-01-16  3:03                 ` Bakul Shah
2021-01-16  7:19         ` Skip Tavakkolian
2021-01-16 16:15       ` Skip Tavakkolian

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