ExternalVendorCode/openwrt
1
0
Fork 0
mirror of https://github.com/openwrt/openwrt.git synced 2025-01-29 15:44:04 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

bcm27xx: correct cmdline.txt consoles for procd

Browse Source 
Commit [ca8c30208d5e][1] updates procd to handle muliple "console=" on the
kernel command line. This affects Raspberry Pi builds because cmdline.txt
specifies a UART console and a virtual console on HDMI, in that order.

When procd finds multiple consoles on the command line, it attempts to
open /dev/console. Linux uses the [last console][2] for /dev/console, so
procd opens the virtual console on Raspberry Pi. This completely disables
the UART console and causes [strange behavior][3] on the virtual console.
Prior to ca8c30208d5e, procd would always open the first console, which is
the UART console.

The simplest fix without reverting ca8c30208d5e is to swap the order of
console options in cmdline.txt. By putting the UART console last, procd
handles the serial console correctly as before.

[1]: https://git.openwrt.org/?p=project/procd.git;a=commit;h=ca8c30208d5e1aaa2c0e3f732c4c9944735e9850
[2]: https://www.kernel.org/doc/html/latest/admin-guide/serial-console.html
[3]: https://forum.openwrt.org/t/rasberry-pi-4-model-b-keyboards-gone-wild/195594

Signed-off-by: Elbert Mai <code@elbertmai.com>
This commit is contained in:
Elbert Mai 2024-04-29 14:05:27 -07:00 committed by Álvaro Fernández Rojas
parent 5acc4f919c
commit 6a05d849e1
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/bcm27xx/image/cmdline.txt
View File

@ -1 +1 @@
console=serial0,115200 console=tty1 root=@ROOT@ rootfstype=squashfs,ext4 rootwait
console=tty1 console=serial0,115200 root=@ROOT@ rootfstype=squashfs,ext4 rootwait