[PATCH work in progress] system: examples: Update Beaglebone Black system definition.

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2 participants
  • Christopher Baines
  • pelzflorian (Florian Pelz)
Submitted by
pelzflorian (Florian Pelz)
pelzflorian (Florian Pelz) wrote on 13 Feb 2023 13:19
(address . guix-patches@gnu.org)(name . Frank Terbeck)(address . ft@bewatermyfriend.org)
I am still working on this; just sending the current state of things,
because I won't finish soon and if someone has comments or if someone
finds it useful.

This *fails to boot* after invoking 'swapon' on an external USB SSD's swap
partition and running 'guix system reconfigure'. Additionally, currently
Inkscape does not build (see bug#60121) and had to be cut out of the
dependency graph by, in the local guix checkout, removing the 'bluez' input of
'pulseaudio' and removing the 'ibus-minimal' input of 'sdl2'. Also 'fakeroot'
does not build unless downgraded to version 1.28 (see bug#61206 maybe).

Note: After installing u-boot-beaglebone-black-bootloader onto /dev/mmcblk1
the Beaglebone Black cannot boot anymore. Don't install it there. Use a
'guix system image' or another bootloader target and don't touch the
bootloader that was there before. TODO Bisect which change broke this.

Reported by Frank Terbeck

* gnu/system/examples/beaglebone-black.tmpl
(initrd-modules): None are needed anymore; pass the empty list.
(kernel): Use a more specific kernel.
(packages): Specify more useful packages.
(services): Add NTP service. For agetty, use ttyS0, which is the
UART port now.
I dedicate this patch to the public domain as per the Creative Commons Zero.

gnu/system/examples/beaglebone-black.tmpl | 42 +++++++++++++++--------
1 file changed, 27 insertions(+), 15 deletions(-)

Toggle diff (68 lines)
diff --git a/gnu/system/examples/beaglebone-black.tmpl b/gnu/system/examples/beaglebone-black.tmpl
index 40d0a76a37..cbb5f2ef14 100644
--- a/gnu/system/examples/beaglebone-black.tmpl
+++ b/gnu/system/examples/beaglebone-black.tmpl
@@ -4,7 +4,7 @@
(use-modules (gnu) (gnu bootloader u-boot))
(use-service-modules networking)
-(use-package-modules bootloaders screen ssh)
+(use-package-modules certs linux)
(host-name "komputilo")
@@ -17,8 +17,15 @@
(bootloader u-boot-beaglebone-black-bootloader)
(targets '("/dev/mmcblk1"))))
- ;; This module is required to mount the SD card.
- (initrd-modules (cons "omap_hsmmc" %base-initrd-modules))
+ ;; This less generic kernel image also contains the
+ ;; needed dtb files in its lib/dtbs subdirectory.
+ (kernel linux-libre-arm-omap2plus)
+ ;; TODO Try to fix HDMI, see https://elinux.org/Beagleboard:BeagleBoneBlack_HDMI
+ ;; (kernel-arguments '(""))
+ ;; No additional drivers are required.
+ (initrd-modules '())
(file-systems (cons (file-system
(device (file-system-label "my-root"))
@@ -43,15 +50,20 @@
;; Globally-installed packages.
- (packages (append (list screen openssh) %base-packages))
- (services (append (list (service dhcp-client-service-type)
- ;; mingetty does not work on serial lines.
- ;; Use agetty with board-specific serial parameters.
- (agetty-service
- (agetty-configuration
- (extra-options '("-L"))
- (baud-rate "115200")
- (term "vt100")
- (tty "ttyO0"))))
- %base-services)))
+ (packages (append (list nss-certs) %base-packages))
+ (services (append (list
+ ;; Ethernet cannot be plugged in after booting,
+ ;; other than that, networking works OK with this:
+ (service dhcp-client-service-type)
+ ;; For receiving the right time.
+ (service ntp-service-type)
+ ;; mingetty does not work on serial lines.
+ ;; Use agetty with board-specific serial parameters.
+ (agetty-service
+ (agetty-configuration
+ (extra-options '("-L"))
+ (baud-rate "115200")
+ (term "vt100")
+ (tty "ttyS0"))))
+ %base-services)))

base-commit: 0890cb97473f1ec8d03cec2347f63deb546d2231
Christopher Baines wrote on 13 Feb 2023 18:28
tag 61474 moreinfo
(address . control@debbugs.gnu.org)
tags 61474 + moreinfo