<div dir="ltr"><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><div dir="ltr">Hello everyone,<div><br></div><div>I am struggling with the installation of slurm on Centos 7. while following this tutorial <a href="https://www.slothparadise.com/how-to-install-slurm-on-centos-7-cluster/" target="_blank">https://www.slothparadise.com/how-to-install-slurm-on-centos-7-cluster/</a></div><div>, after the installation of MariaDB, I try to create users for slurm and munge but following the same sequence of commands as in the tutorial gives me the following error.</div><div><br></div><div><b>Package 1:mariadb-server-5.5.68-1.el7.x86_64 is obsoleted by mysql-community-server-5.7.37-1.el7.x86_64 which is already installed<br>Package 1:mariadb-devel-5.5.68-1.el7.x86_64 is obsoleted by mysql-community-devel-5.7.37-1.el7.x86_64 which is already installed<br>Nothing to do<br>[root@exxact slurm]# export MUNGEUSER=991<br>[root@exxact slurm]# groupadd -g $MUNGEUSER munge<br>groupadd: GID '991' already exists<br>[root@exxact slurm]# useradd -m -c "MUNGE Uid 'N' Gid Emporium" -d /var/lib/munge -u $MUNGEUSER -g munge -s /sbin/nologin munge<br>useradd: group 'munge' does not exist<br>[root@exxact slurm]# export SLURMUSER=992<br>[root@exxact slurm]# groupadd -g $SLURMUSER slurm<br>groupadd: GID '992' already exists<br>[root@exxact slurm]# useradd -m -c "SLURM workload manager" -d /var/lib/slurm -u $SLURMUSER -g slurm -s /bin/bash slurm<br>useradd: group 'slurm' does not exist</b><br></div><div><br></div><div>I am totally new to this. Kindly guide me on how to resolve this.</div><div><br clear="all"><div><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Best Regards,</div><div dir="ltr"><span style="font-family:arial;font-size:small">Nousheen Parvaiz</span><br style="font-family:arial;font-size:small"><br></div></div></div></div></div></div></div></div><div hspace="streak-pt-mark" style="max-height:1px"><img alt="" style="width:0px;max-height:0px;overflow:hidden" src="https://mailfoogae.appspot.com/t?sender=abm91c2hlZW5wYXJ2YWl6QGdtYWlsLmNvbQ%3D%3D&type=zerocontent&guid=e55c74ab-d4d1-48e0-86f0-28771df0eef6"><font color="#ffffff" size="1">ᐧ</font></div>
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