Hello,
On Wed, 2 Aug 2017 10:55:14 -0400 Lamar Owen <lo...@pari.edu> wrote: > On 07/27/2017 04:16 PM, wwp wrote: > > ... > > It is as simple as unknown hardware at boot up, it's a well known issue > > w/ *Lake hardware (modern hardware) that kernel 3.x cannot handle. > > CentOS7 has a kernel which is simply not modern, unable to handle lots > > of computers sold currently. > > > > That said, there might be a way to boot, but nothing trivial and > > nothing at all I could find on the Internet, everytime it's kernel > > 4.3/4.10 minimum required. > ... > > While I know that Johnny has provided the experimental kernel (thanks, > Johnny) I would like to just briefly address this idea that the C7 kernel is > 'obviously' not going to work because 'is 3.x and must have 4.x.' > > In EL-land, kernel versions are effectively meaningless, since features, > hardware support, bugfixes, security fixes, etc are back-ported into the 'old > and not modern' 3.10 kernel (for EL7) by competent developers at Red Hat. An > EL 3.10 kernel, such as the current 3.10.0-514.26.2.el7.x86_64 one, may have > hardware support back-ported from a 4.x kernel that doesn't exist in the > vanilla kernel.org kernel (I'm almost certain it does, but I'm not going to > take the time to get details). > > So it is very possible that full hardware support for your hardware could > show up in a 3.10 kernel (in fact, I would expect that this would happen, but > it might not happen quickly). As you found out, experimental kernels and > non-distribution kernels can freak out software packages, such as VMware > Workstation, that only work with certain kernels and are expecting a > particular kernel version and ABI for EL7. I've tried out a few non-standard > kernels before, and if you rely on packages that depend upon the distribution > default kernel version (as I do with kmod-nvidia from ELrepo!) that breakage > can be swift, and can derail you in a hurry, causing you to go down a rabbit > hole very quickly. So be prepared and keep your eyes open for these issues. > > In some circles, the back-porting of features into old kernels is > controversial; but that is a business decision made as part of the EL > development and is not likely to change any time soon. YMMV. Thanks for this clear explanation, Lamar. I'll surely keep an eye on further kernel updates (and CentOS 7.4). Regards, -- wwp
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