On 24/09/2013 11:45, Ricardo Catalinas Jiménez wrote: > I need to update the content of this file because I modified my > partition table, but I can't see how googling around. According to the man page, this file is only generated if your system doesn't have a /run directory, which would be an odd thing for an Arch system, or if you have a custom config file for blkid. Running 'BLKID_FILE=/etc/blkid.tab blkid -c /dev/null' as root should update it. > Is this file actually used? How is it generated originally when > installing its owner package? According to https://projects.archlinux.org/svntogit/packages.git/tree/trunk?h=packages/util-linux, it is not generated at install time. You may want to have a look at custom packages you have installed that could rely on this file. Tim