Search code examples
linuxdockerlaradock

Linux group 998,what does it mean?

Ubuntu 20 LTS, Installed laradock,

in Ubuntu

$ pwd
/root/Docker

$ ls
blog laradock

$ rsync -a /media/sf_code/blog  . && chmod -R 755 blog
$ cd laracock
$ docker-compose exec --user=root  workspace bash

in docker

> ll
total 20
drwxr-xr-x  4 laradock laradock 4096 Nov 12 06:52 ./
drwxr-xr-x  1 root     root     4096 Nov 12 02:30 ../
drwxr-xr-x 12 root          998 4096 Nov 12 03:09 blog/
drwxr-xr-x 74 laradock laradock 4096 Nov 12 06:35 laradock/

what does 998 mean?

Solution

  • The 4th column is the group id. It there is an entry in /etc/group with this id, then the group name will be printed otherwise the id.

    The your example the group id of folder blog is 998 but no group exist inside the container with this id. Mapping a folder to a docker container does not change owner or group.

    Some explanation can be found here