[Buildroot] [PATCH 2/2] mkusers: change default from normal to system user

[Norbert Lange <nolange79@gmail.com>]

for all packages, this is the fitting default,
but the fallout will be user provided tables.

Also update the docs with the chagned behaviour.

Signed-off-by: Norbert Lange <nolange79@gmail.com>
---
 docs/manual/makeusers-syntax.txt | 11 +++++++----
 support/scripts/mkusers          |  6 +++---
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/docs/manual/makeusers-syntax.txt b/docs/manual/makeusers-syntax.txt
index 467e596230..3d1013f447 100644
--- a/docs/manual/makeusers-syntax.txt
+++ b/docs/manual/makeusers-syntax.txt
@@ -20,13 +20,16 @@ Where:
   It can not be +root+, and must be unique. If set to +-+, then just a
   group will be created.
 - +uid+ is the desired UID for the user. It must be unique, and not
-  +0+. If set to +-1+, then a unique UID will be computed by Buildroot
-  in the range [1000...1999]
+  +0+. If set to +-1+ or +-2+, then a unique UID will be computed by
+  Buildroot, with +-1+ denoting a system UID from [100...999] and +-2+
+  denoting a user UID from [1000...1999]. 
 - +group+ is the desired name for the user's main group. It can not
   be +root+. If the group does not exist, it will be created.
 - +gid+ is the desired GID for the user's main group. It must be unique,
-  and not +0+. If set to +-1+, and the group does not already exist, then
-  a unique GID will be computed by Buildroot in the range [1000..1999]
+  and not +0+. If set to +-1+ or +-2+, and the group does not already
+  exist, then a unique GID will be computed by Buildroot, with +-1+
+  denoting a system GID from [100...999] and +-2+ denoting a user GID
+  from [1000...1999]. 
 - +password+ is the crypt(3)-encoded password. If prefixed with +!+,
   then login is disabled. If prefixed with +=+, then it is interpreted
   as clear-text, and will be crypt-encoded (using MD5). If prefixed with
diff --git a/support/scripts/mkusers b/support/scripts/mkusers
index 9d8295e8a3..f7a3180e30 100755
--- a/support/scripts/mkusers
+++ b/support/scripts/mkusers
@@ -14,8 +14,8 @@ LAST_SYSTEM_UID=999
 FIRST_SYSTEM_GID=100
 LAST_SYSTEM_GID=999
 # argument to automatically crease system/user id
-AUTO_SYSTEM_ID=-2
-AUTO_USER_ID=-1
+AUTO_SYSTEM_ID=-1
+AUTO_USER_ID=-2
 
 # No more is configurable below this point
 #----------------------------------------------------------------------------
@@ -433,7 +433,7 @@ main() {
         read username uid group gid passwd home shell groups comment <<<"${line}"
         if [ "${groups}" != "-" ]; then
             for g in ${groups//,/ }; do
-                add_one_group "${g}" ${AUTO_USER_ID}
+                add_one_group "${g}" ${AUTO_SYSTEM_ID}
             done
         fi
     done
-- 
2.34.1

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