Changeset 5c95986

Timestamp:

05/02/2022 02:47:34 PM (2 years ago)

Author:

William Harrington <kb0iic@…>

Branches:

arm

Children:

221751d

Parents:

c5d69ac

git-author:

Xi Ruoyao <xry111@…> (05/02/2022 08:02:10 AM)

git-committer:

William Harrington <kb0iic@…> (05/02/2022 02:47:34 PM)

Message:

GID 5 (for tty) is also special

File:

• chapter07/createfiles.xml (modified) (1 diff)

chapter07/createfiles.xml

@@ -166 +166 @@
   besides the group <systemitem class="groupname">root</systemitem> with a
   Group ID (GID) of 0, a group <systemitem class="groupname">bin</systemitem>
-  with a GID of 1 be present. All other group names and GIDs can be chosen
-  freely by the system administrator since well-written programs do not depend
-  on GID numbers, but rather use the group's name.</para>
+  with a GID of 1 be present. The GID of 5 is widely used for
+  <systemitem class="groupname">tty</systemitem> group, and the number 5 is
+  also used in <phrase revision="systemd">systemd</phrase>
+  <phrase revision="sysv"><filename>/etc/fstab</filename></phrase> for the
+  <systemitem class="filesystem">devpts</systemitem> filesystem.
+  All other group names and GIDs can be chosen freely by the system
+  administrator since well-written programs do not depend on GID numbers,
+  but rather use the group's name.</para>
 
   <para>The ID 65534 is used by the kernel for NFS and separate user