downgrade 2.6 -> 2.4

[jakeluck]

Hi,

This is the reverse of what most people asks for. I am running last month's x86 tree with 2.6.15-gentoo-r1 with udev.
I need to do some regression testing for a piece of software and would like to downgrade to the 2.4.21. My questions are:

1) do i need to go back to devfs or would udev work with 2.4

2) http://packages.gentoo.org/search/?sstring=vanilla-sources
and /usr/portage/sys-kernel/vanilla-sources/vanilla-sources-2.4.21.ebuild
shows that 2.4.21 is only availabe for the IBM s390, would it be safe
to mod and install that on x86?

3) would i need to replace linux-headers with the older version?
(curiously, linux-headers-2.4.21 and linux-headers-2.4.21-r1 do exist for x86)

4) anything else that I should watch out for?

thanks for the insight!

jake

[itsmegawtf]

1. yes, you need.
2. it will work (I had such experience)
3. I think - yes (they must exist)
4. read migrating (kernels) and do vice versa

[bollucks]

Don't reinitiate devfs, just use a static dev tree

[jakeluck]

i got both the vanilla 2.4.28 ebuild as well as the plain 2.4.21 kernel.org tar to work.
via