On 02/25/2015 03:43 PM, Josh Boyer wrote: > On Wed, Feb 25, 2015 at 9:35 AM, Ali AlipourR <alipoor90@xxxxxxxxx> wrote: >>>> Why sysrq is limited to only "sync" command on official fedora kernel? >>> >>> The kernel itself isn't limited. It's just set that way in >>> /usr/lib/sysctl.d/50-default.conf which is provided by systemd. You >>> can edit that file, create your own in /etc/sysctrl.d/, or (as root) >>> set it to whatever you would like via /proc/sys/kernel/sysrq. >> >> Of course it can be changed at runtime, but I mean why official fedora >> kernel shouldn't be configured to allow all (or at least a wider >> subset) of sysrq commands by default? > > Maybe we're getting hung up on a terminology issue, but this isn't a > kernel configuration issue. It's something userspace is doing. > >> This way official fedora live CDs are unsuitable for system recovery >> tasks; you have to change sysrq value every time you use live CDs or >> build your own live CD. > > That's a good point. Since the live images have a "rescue" mode, > maybe there is a way to use a different value when booted into that. > How that would look, I'm not sure. Maybe dracut would need to include > an override file in the initramfs. I don't follow the reasoning. Why am I more likely to need SysRq in rescue mode than in normal boot? Michal -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
