Messages in this thread | | | From | Jochen Hein <> | Subject | Re: Linux 2.4 <-> 2.6 compatibility | Date | Sun, 26 Oct 2003 19:18:48 +0100 |
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Fabio Massimo Di Nitto <fabbione@fabbione.net> writes:
> On Sun, 26 Oct 2003, Jochen Hein wrote: > >> Matthias Andree <matthias.andree@gmx.de> writes: >> >> > As 2.6 starts stabilizing, PLEASE try to synch up major components of >> > 2.6 and 2.4 so that the same user space can be used for either version. >> > It's fine with modutils and stuff, but when it comes to LVM, these 2.4 >> > and 2.6 versions are a problem. >> >> Debian SID contains lvm10, lvm2 and lvm-common, which can be installed >> together and work for both kernels. Backport to woody was simple. > > this is true in terms of userland utils but you still need to perform a > transition of kernels. 2.4 -> 2.4 + devicemapper patch -> 2.6.
No, I just did install 2.6 on my formerly 2.4-vanilla system!
> Until now i > couldn't find a way to jump directly from 2.4 to 2.6 and converting from > lvm1 to lvm2 at the same time.
lvm-common contains a program that decides what iop-version/lvm-version/dm-version is running and calls the right userland. So you have e.g.: /sbin/vgchange: link to lvmiopversion. That decides to call /lib/lvm-10/vgchange or /lib/lvm-2/vgchange depending on the kernel stuff. Very helpful for me.
Jochen
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