On Tue, 7 May 2019 at 04:06, wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> wrote: > Hi, > > Recently, I encountered a interesting phenomenon that CentOS 6.3 > running as normal even if I (my colleague, actually) installed a > kernel that build for CentOS 7.x (e.g. kernel-3.10.0-327.el7.x86_64.rpm). > > I found kernel is mismatch accidentally when I using "uname -r" to > check kernel version. So my question is what the harmness we will > get if I install a el7 rpm into a el6 system? > > Many CentOS-7 packages will not install because they will need dependencies that the EL-6 does not have. The kernel is different because it is mostly self-contained and meant to be parallel installed. In most cases, it should result in an unbootable system because the boot is going to be dracut+systemd bits and the EL-6 has none of that. > Thanks. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > -- Stephen J Smoogen.