cobbler import – stderr file: No such file or directory

What a miss here in our docker Cobbler instance! When trying to import a new distro in Cobbler the import finished with failed task and multiple errors of:

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/Release.gpg
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/main/binary-i386/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

The “file”? Apparently, the Linux file command is missing and it is just possible because it is a docker container with the minimum installation of packages and dependencies.

Without the “file” command import will fail with “No signature matched” even you have synced with the latest signature just before the execution of the import command.

Install the package “file” in your server.
CentOS 7/Fedora:

yum install -y file

Ubuntu

apt install -y file

The whole error

[root@srv-cobbler ~]# cobbler import --name=ubuntu-18.04.3-server-amd64 --path=/mnt/ --breed=ubuntu --os-version=bionic --arch=x86_64 
task started: 2019-10-09_052732_import
task started (id=Media import, time=Wed Oct  9 05:27:32 2019)
Found a candidate signature: breed=ubuntu, version=bionic
running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/Release.gpg
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/main/binary-i386/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/main/binary-amd64/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/restricted/binary-i386/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/restricted/binary-amd64/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

Found a candidate signature: breed=ubuntu, version=bionic
running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/Release.gpg
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/main/binary-i386/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/main/binary-amd64/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/restricted/binary-i386/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

running: /usr/bin/file /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64/dists/bionic/restricted/binary-amd64/Release
received on stdout: 
received on stderr: /bin/sh: /usr/bin/file: No such file or directory

No signature matched in /var/www/cobbler/ks_mirror/ubuntu-18.04.3-server-amd64-x86_64
!!! TASK FAILED !!!

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