Hidden Gmoccapy dependencies

tommylight
Away
Moderator

15 Aug 2020 14:46 #178288 by tommylight

Replied by tommylight on topic Hidden Gmoccapy dependencies

tuxcnc wrote:
Since many years I always login as root and no bad happened.
Never.

Same here, but i did work for two of the biggest organisations in the world as a network admin.

Back on topic, LinuxCNC will complain or will not run at all as root.
Nmap will !

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tuxcnc
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Premium Member

15 Aug 2020 17:41 #178308 by tuxcnc

Replied by tuxcnc on topic Hidden Gmoccapy dependencies

tommylight wrote:
Back on topic, LinuxCNC will complain or will not run at all as root.

It is off topic.
Root account is not the reason why LInuxcnc doesn't work.
The reason is somebody blocked it.
But i have medicine :

diff -Naur old/linuxcnc-master/src/rtapi/uspace_rtapi_app.cc new/linuxcnc-master/src/rtapi/uspace_rtapi_app.cc
--- old/linuxcnc-master/src/rtapi/uspace_rtapi_app.cc	2019-12-30 19:35:11.000000000 +0100
+++ new/linuxcnc-master/src/rtapi/uspace_rtapi_app.cc	2020-01-01 13:58:02.785981571 +0100
@@ -501,14 +501,6 @@
     if(getuid() == 0) {
         char *fallback_uid_str = getenv("RTAPI_UID");
         int fallback_uid = fallback_uid_str ? atoi(fallback_uid_str) : 0;
-        if(fallback_uid == 0)
-        {
-            fprintf(stderr,
-                "Refusing to run as root without fallback UID specified\n"
-                "To run under a debugger with I/O, use e.g.,\n"
-                "    sudo env RTAPI_UID=`id -u` RTAPI_FIFO_PATH=$HOME/.rtapi_fifo gdb " EMC2_BIN_DIR "/rtapi_app\n");
-            exit(1);
-        }
         setreuid(fallback_uid, 0);
         fprintf(stderr,
             "Running with fallback_uid.  getuid()=%d geteuid()=%d\n",

I always run Linuxcnc as root and never notice something not works due it.
I know because I do it, but you don't know because you don't even try.
That's all about root account.

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