[Buildroot] [PATCH 1/1] fs/cpio: make initramfs init script survive 'console=' kernel argument

[Peter Korsgaard]

>>>>> "Timo" == Timo Ketola <timo at exertus.fi> writes:

 > On 23.9.2019 16.10, Peter Korsgaard wrote:
 >>>>>>> "Timo" == Timo Ketola <Timo.Ketola at exertus.fi> writes:
 >> 
 >> > When booting with 'console=<empty>' in the kernel command line (as e.g.
 >> > U-Boot does with silent flags in effect), opening /dev/console fails.
 >> > That is fatal in the /init script and kernel will panic. It is also
 >> > needless, because the kernel tries to open it anyway (well, as long as
 >> > we have console node in initramfs /dev; cpio.mk creates that alright).
 >> 
 >> Also when devtmpfs is used? We manually mount devtmpfs in the initramfs,
 >> so the kernel presumably cannot have opened /dev/console before
 >> executing /init, and we do not add a static device node for
 >> /dev/console.

 > But I thought BR does just that here:

 > https://git.busybox.net/buildroot/tree/fs/cpio/cpio.mk

 > line 24, 25

Heh, indeed - I forgot about that logic. Then I guess it is good, unless
something else in the boot sequence doesn't like a missing
stdin/stdout/stderr.

-- 
Bye, Peter Korsgaard