Category Archives: ATLAS Software

Resize ext3 file system in loopback file

CernVM for Xen comes as loopback file, containing an Ext3 file system of about 9 GB size, whereas about 8.5 GB are free. Using this free space I tried to set up an Offline ATLAS Software Release (15.1.0). But the filesystem ran full and pacman aborted the setup. The goal is to deploy Virtual Machines of this image within the Nimbus Cloud, which currently does not support additional partitions.

So I had to increase the size of the image / loopback file and to extend the filesystem afterwards. Therefore I basically used dd and resize2fs. Continue reading