> -----Original Message----- > From: Paul Eggleton [mailto:[email protected]] > Sent: 24 April 2013 15:36 > To: Diego Santa Cruz > Cc: [email protected]; Bruce Ashfield > Subject: Re: [yocto] About running old kernels with Yoctoo 1.2 or 1.3 > > On Wednesday 24 April 2013 08:53:31 Bruce Ashfield wrote: > > > > Each Yocto release uses a sliding set of kernel's that have had at least > > some level of testing with the associated userspace of the release. > > > > 1.4 is: 3.2, 3.4 and 3.8 > > 1.3 was: 3.4, 3.2 and 3.0 > > 1.2 was: 3.2, 3.0 and 2.6.37 > > > > But obviously, the linux kernel has a very stable userspace ABI, so there > > shouldn't be any big compatibility issues with other kernel versions. > > It's just that we don't know for sure. > > > > It is true that each of these releases with have a linux-libc-headers > > that is newer than the 2.6.x kernel you are talking about, which could > > expose syscalls or other interfaces to userspace that aren't supported > > in your kernel, but this typically degrades gracefully and the issue > > detected when you try your applications. > > The usual problematic components are those that rely heavily upon the kernel > e.g. udev and systemd. For such components you may find you need to downgrade > or avoid them altogether; most of userspace should work just fine with an > older > kernel though.
Many thanks for the valuable input. Is the traditional init system still supported, or is Yocto using systemd exclusively? Best, Diego -- Diego Santa Cruz, PhD Technology Architect _________________________________ SpinetiX S.A. Rue des Terreaux 17 1003, Lausanne, Switzerland T +41 21 341 15 50 F +41 21 311 19 56 [email protected] http://www.spinetix.com http://www.youtube.com/SpinetiXTeam _________________________________ _______________________________________________ yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/yocto
