mdev change no longer supporting v2.6.2x kernels by using /sys/dev

Rob Landley rob at landley.net
Thu Mar 30 23:10:29 UTC 2017


On 03/30/2017 02:34 PM, Peter Korsgaard wrote:
>>>>>> "Ralf" == Ralf Friedl <Ralf.Friedl at online.de> writes:
> 
> Hi,
> 
>>> /sys/dev support got added in 2.6.27-rc1 (July 2008), E.G. ~9 years ago:
> 
>  > Busybox is often used in embedded devices, where kernels (and other
>  > software) are not changed that often. Firmware may contain kernel
>  > modules without full source, so a change to a newer kernel is not an
>  > option. As an example, I have a router with kernel 2.6.13. I can't
>  > update the kernel, but I can replace the busybox with a newer version
>  > (and much more applets) than the original.
> 
> True, but generally you will run into a number of issues when you
> combine SW components of significant different "age". E.G. lots of
> modern user space requires new kernel features, either explicitly or
> simply because nobody has tested it on such old systems.

My old rule of thumb back in the day was trying to support 7 year old
build and deployment environments:

  http://lists.busybox.net/pipermail/busybox/2006-September/058440.html

This is 2 years beyond that.

Just FYI,

Rob


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