http://mcloud-doc.lonxun.com/wiki/ 2026-08-25T19:34:01+00:00 http://mcloud-doc.lonxun.com/wiki/ http://mcloud-doc.lonxun.com/wiki/_media/logo.png text/html 2026-08-03T09:54:04+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q101?rev=1785750844&do=diff q101: slurm fails to start inside the qflowcpu container Symptom Check the log file (run this inside the container): Check /var/log/slurm/d.log It contains the error "error: unable to mount freezer cgroup namespace: Operation not permitted" text/html 2026-08-03T15:37:49+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q102?rev=1785771469&do=diff q102: Docker install error on Rocky 8.10 Symptom On Rocky 8.10, when you run the Docker install command from the guide, if you see a big block of errors like this (mentioning a conflict between podman-related packages and runc): [lxkt@localhost ~]$ sudo dnf install -y docker-ce docker-ce-cli containerd.io Last metadata expiration check: 0:00:32 ago on Thu 02 Jul 2026 02:28:26 PM CST. Error: Problem 1: problem with installed package podman-4:4.9.4-1.module+el8.10.0+1815+5fe7415e.x86_64 - p… text/html 2026-08-03T15:38:09+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q103?rev=1785771489&do=diff q103: Switching mirrors on CentOS 7.9 Symptom On CentOS 7.9, when you run a command to install dependency packages (e.g. installing NVIDIA driver dependencies), if you see an error like this one, saying it can't reach mirrorlist.centos.org: [lxkt@localhost ~]$ sudo yum install -y gcc kernel-devel-$(uname -r) kernel-headers-$(uname -r) Loaded plugins: fastestmirror Determining fastest mirrors Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock… text/html 2026-08-04T01:22:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q104?rev=1785806531&do=diff q104: "lspci: command not found" Symptom When running lspci | grep -i nvidia to check for a GPU, you see “bash: lspci: command not found.” This means the lspci tool itself isn't installed on the system — it's not a sign of a GPU problem. Fix text/html 2026-08-04T01:22:29+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q105?rev=1785806549&do=diff q105: Running a PowerShell script fails on Windows If you run into an error like this while running a script: File cannot be loaded because running scripts is disabled on this system. Specific symptom > .\get_hdwkey.ps1 .\get_hdwkey.ps1 : File C:\Users\lxkt\Desktop\PWmatLICENSE_win\get_hdwkey.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170. At line:1 char:1 + .\get_… text/html 2026-08-10T03:01:35+00:00 Anonymous (anonymous@undisclosed.example.com) http://mcloud-doc.lonxun.com/wiki/en/pwstudio/qa/q106?rev=1786330895&do=diff q106 启容器时指定 CPUs, GPUs, SERVERIP " 1. 指定 cpu 核数 8, gpu 卡数 2, license 服务ip为 172.20.0.1" sudo docker run -d --name qflowgpu -e CPUs=8 -e GPUs=2 -e SERVERIP=172.20.0.1 \ -v /var/tmp/pwmat_host_secret:/var/tmp/pwmat_host_secret:ro \ --ulimit memlock=-1:-1 --ulimit stack=-1:-1 \ --gpus all --shm-size=128G --privileged -e SELINUX=disabled \ -p 80:80 -p 81:81 -p 2297:2297 -p 5010:5010 --hostname=mstation ccr.ccs.tencentyun.com/lxkt/qflowgpu:latest