From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Woodhouse Subject: Re: Kernel boot problem on IXP422 Rev. A Date: Thu, 12 Jun 2008 23:15:43 +0100 Message-ID: <1213308943.26255.212.camel@pmac.infradead.org> References: <1522484831@web.de> <8bd0f97a0806121304m7d00fb6dq27fa7aa37cbeb828@mail.gmail.com> <17882748-2E1B-4DB4-82FD-C5D5C4E62CC8@logicaloutcome.ca> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <17882748-2E1B-4DB4-82FD-C5D5C4E62CC8@logicaloutcome.ca> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Glenn Henshaw Cc: linux-embedded On Thu, 2008-06-12 at 17:28 -0400, Glenn Henshaw wrote: > > On Thu, Jun 12, 2008 at 3:35 PM, Marcus Tangermann wrote: > >> we currently try to boot a 2.6.21 kernel > > > > time to upgrade > > Wrong answer!!! > > Many embedded devices can't upgrade kernels easily because of > customer requirements and certifications. For example, I have worked > on Linux based applications in the financial industry. A kernel > upgrade here is viewed as equivalent to switching from Windows XP to > Vista, and requires significant effort in certification testing from > the customer's perspective. This doesn't make economic sense for > either party. If this certification was granted despite Marcus' admission that the kernel doesn't even boot -- it dies between gunzip and start_kernel -- then I suspect it wasn't the kind of certification which takes 4 years to achieve. _Most_ people who are having trouble with old kernels have extremely _bad_ reasons for not updating. -- dwmw2