Questions and Answers :
Unix/Linux :
Cvmfs_config probe fails on archlinux
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Send message Joined: 21 Mar 17 Posts: 3 Credit: 391,714 RAC: 0  
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[user@archlinux ~]$ neofetch
-` user@archlinux
.o+` --------------------
`ooo/ OS: Arch Linux x86_64
`+oooo: Kernel: 5.5.9-arch1-2
`+oooooo: Uptime: 59 mins
-+oooooo+: Packages: 948 (pacman)
`/:-:++oooo+: Shell: bash 5.0.16
`/++++/+++++++: Resolution: 3440x1440
`/++++++++++++++: DE: Plasma
`/+++ooooooooooooo/` WM: KWin
./ooosssso++osssssso+` WM Theme: Glassy
.oossssso-````/ossssss+` Theme: Breeze Dark [Plasma], Breeze [GTK2/3]
-osssssso. :ssssssso. Icons: breeze-dark [Plasma], breeze-dark [GTK2/3]
:osssssss/ osssso+++. Terminal: konsole
/ossssssss/ +ssssooo/- CPU: AMD Ryzen 7 2700X (16) @ 4.000GHz
`/ossssso+/:- -:/+osssso+- GPU: NVIDIA GeForce GTX 1080
`+sso+:-` `.-/+oso: GPU: AMD ATI Radeon RX Vega 56/64
`++:. `-/+/ Memory: 7562MiB / 32079MiB
.` `/
[user@archlinux etc]$ cvmfs_config probe
Probing /cvmfs/atlas.cern.ch... Failed!
Probing /cvmfs/atlas-condb.cern.ch... Failed!
Probing /cvmfs/grid.cern.ch... Failed!
Probing /cvmfs/cernvm-prod.cern.ch... Failed!
Probing /cvmfs/sft.cern.ch... Failed!
Probing /cvmfs/alice.cern.ch... Failed!
[user@archlinux etc]$ sudo cvmfs_config chksetup
Error: /etc/auto.cvmfs is not executableI believe I have a broken cvmfs installation, but am a bit unsure how to actually fix this to run theory and atlas applications on my computer. |
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Send message Joined: 9 Jan 15 Posts: 151 Credit: 431,596,822 RAC: 0 
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is autofs added and installed in package? https://wiki.archlinux.org/index.php/Autofs Does it need squashtools? Would would like to test in arch but no experience. Do we have a guide to install? Only found package at aur https://aur.archlinux.org/packages/cvmfs/ |
 Send message Joined: 15 Jun 08 Posts: 2411 Credit: 226,078,139 RAC: 126,763  |
Did you install both packages? cvmfs cvmfs-config-default After installation, did you run (only once) "cvmfs_config setup"? If this is done you should have a link "/etc/auto.cvmfs" pointing to "/usr/libexec/cvmfs/auto.cvmfs" and having executable flags set. /etc/auto.master requires an uncommented line: /cvmfs /etc/auto.cvmfs Then follow this post to enable the required repositories and switch the CVMFS_SERVERS to openhtc.io: https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5342&postid=41861 If all is done, reboot your computer and check if "cvmfs_config probe" returns "OKs". |
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Send message Joined: 21 Mar 17 Posts: 3 Credit: 391,714 RAC: 0
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Did you install both packages? I had ran "cvmfs_config setup", but seems like that failed to create the proper symlink to "/etc/auto.cvmfs". I managed to manually create a symlink to "/usr/lib/cvmfs/auto.cvmfs" to the correct location. rebooted and seems to return all OKs now. So, seems like this issue got resolved, thank you. |
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Send message Joined: 15 Jun 08 Posts: 2411 Credit: 226,078,139 RAC: 126,763 |
ATLAS requires the squashfs package to expand the singularity image. Gunde already mentioned that but it looks like it isn't installed on your computer: [2020-03-17 00:15:54] [31mFATAL: [0m while extracting /cvmfs/atlas.cern.ch/repo/containers/images/singularity/x86_64-centos7.img: root filesystem extraction failed: could not extract squashfs data, unsquashfs not found |
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Send message Joined: 21 Mar 17 Posts: 3 Credit: 391,714 RAC: 0
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I'm a bit unsure if I managed to install squashfs, but I did at least manage to install singularity version 7ad654b, which led to me having a successful run on ATLAS, so do I still need to install something else? https://lhcathome.cern.ch/lhcathome/result.php?resultid=268234127 |
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Send message Joined: 15 Jun 08 Posts: 2411 Credit: 226,078,139 RAC: 126,763 |
This line shows that the task succeeded: [2020-03-17 17:16:29] HITS file was successfully produced: Singularity should not be installed locally any more unless you need it to run other apps than ATLAS. The reason is that the ATLAS image is created with a distinct singularity version and there is no guarantee it runs under the locally installed version. If no local singularity can be found ATLAS will use the right version from a CVMFS repository. |
 Send message Joined: 31 Jan 07 Posts: 2 Credit: 872,841 RAC: 0
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Morning, i have the same problem to solve, but i don't know how to get the cvmfs-config-default ... its not in AUR and all other packages i found are not for arch :/ The Symlink for autofs i did by myself, i executed the "cvmfs_config setup" but nothing happend? Probing /cvmfs/atlas.cern.ch... Failed! Probing /cvmfs/atlas-condb.cern.ch... Failed! Probing /cvmfs/grid.cern.ch... Failed! Probing /cvmfs/cernvm-prod.cern.ch... Failed! Probing /cvmfs/sft.cern.ch... Failed! Probing /cvmfs/alice.cern.ch... Failed! I am new in arch, seems to be the biggest problem :P |
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Send message Joined: 15 Jun 08 Posts: 2411 Credit: 226,078,139 RAC: 126,763 |
CVMFS has an excellent manual site here: https://cvmfs.readthedocs.io/en/stable/cpt-overview.html https://cvmfs.readthedocs.io/en/stable/cpt-quickstart.html The 2nd page includes a link to the official download page where you get the core packages as well as the config packages (https://ecsft.cern.ch/dist/cvmfs/cvmfs-config). Be aware: A few options must be changed to map your local needs. This post describes what to do and shows some examples: https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5594 Additional hint: Your computer page lists 4 computers with 32 cores each. If all of them are running ATLAS/Theory/CMS this would count as 128 "worker nodes". The CVMFS manual (see above) clearly recommends to use an HTTP proxy for clusters > 5 worker nodes. This post shows what to do: https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=5473 |
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Send message Joined: 31 Jan 07 Posts: 2 Credit: 872,841 RAC: 0
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did my very best to install cvmfs-config-default but i got a failure installing cvmfs & cvmfs-config-default : cvmfs und cvmfs-config-default stehen miteinander in Konflikt. cvmfs-config-default entfernen? [j/N] n Fehler: Nicht auflösbare Paketkonflikte gefunden Fehler: Konnte den Vorgang nicht vorbereiten (In Konflikt stehende Abhängigkeiten) :: cvmfs und cvmfs-config-default stehen miteinander in Konflikt i used the cvmfs from the AUR and made the cvmfs-config-default debian package with debtap to an arch usable package ... Installation itself was no problem but told me there conflicts between those packages :/ As i told i am new in arch :P maybe @J_Rantanen can help here ... |
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Send message Joined: 15 Jun 08 Posts: 2411 Credit: 226,078,139 RAC: 126,763 |
If you use recent versions from the core packet and the config packet try to tell your packet manager to ignore the conflict. If this doesn't work you would have to compile CVMFS from the source packets. The main purpose of the config packet is to - copy recent config files and keys to the /etc/cvmfs tree and to - install /etc/auto.cvmfs which is required for the fuse automounter. All of that can easily be done manually. As already pointed out the configuration may work but is not completely finished after the installation. |
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