CernVM File System


About CernVM-FS

The CernVM File System provides a scalable, reliable and low-maintenance software distribution service. It was developed to assist High Energy Physics (HEP) collaborations to deploy software on the worldwide-distributed computing infrastructure used to run data processing applications. CernVM-FS is implemented as a POSIX read-only file system in user space (a FUSE module). Files and directories are hosted on standard web servers and mounted in the universal namespace /cvmfs.

Internally, CernVM-FS uses content-addressable storage and Merkle trees in order to store file data and meta-data. CernVM-FS uses outgoing HTTP connections only, thereby it avoids most of the firewall issues of other network file systems. It transfers data and meta-data on demand and verifies data integrity by cryptographic hashes.


CernVM-FS Package Repositories


In order to add the yum repository, run:

sudo yum install


In order to add the apt repository, run:

sudo apt-get install lsb-release
sudo dpkg -i cvmfs-release-latest_all.deb
rm -f cvmfs-release-latest_all.deb
sudo apt-get update

CernVM-FS Core Packages

CernVM-FS Config Packages

CernVM-FS Nagios Check for Clients

Cache Preloader for HPC Systems

Shrinkwrap Packages

Nightly Builds