Why sysrq is limited to only "sync" command on official fedora kernel?
mschmidt at redhat.com
Wed Feb 25 14:39:02 UTC 2015
On 02/25/2015 03:04 PM, Josh Boyer wrote:
> On Wed, Feb 25, 2015 at 8:54 AM, Ali AlipourR <alipoor90 at gmail.com> 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,
The file in /usr will be overwritten by the next package update.
> create your own in /etc/sysctl.d/,
Yes, local configuration belongs to /etc.
See also "man sysctl.d".
> or (as root) set it to whatever you would like via /proc/sys/kernel/sysrq.
Or pass "sysrq_always_enabled" on the kernel command line.
Ignore sysrq setting - this boot parameter will
neutralize any effect of /proc/sys/kernel/sysrq.
Useful for debugging.
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