March 2006 volume_id vol_id 8 vol_idprobe filesystem type and read label and uuid vol_id --export --type --label --label-raw --uuid --skip-raid --probe-all --offset=bytes --debug --help device vol_id is usually called from a udev rule, to provide udev with the filesystem type, the label and the uuid of a volume. It supports most of the common filesystem formats and detects various raid setups to prevent the recognition of raid members as a volume with a filesystem. --export Print all values in key/value format to import them into the environment. --type Print the filesystem type. --label Print the safe version of volume label suitable for use as filename. --label-raw Print the raw volume label. --uuid Print the uuid of a volume. --skip-raid Skip detection of raid metadata. --probe-all Probe for all types and print all matches. --offset=bytes Start probing at the given offset, instead of the beginning of the volume. The offset value is specified in bytes. --debug Print debug messages to stderr. --help Print usage. UDEV_LOG Set the syslog priority. vol_id will only return successful if the value asked for is not empty. All trailing whitespace will be removed, spaces replaced by underscore and slashes ignored. Written by Kay Sievers kay.sievers@vrfy.org udev7