diff options
Diffstat (limited to 'extras/volume_id/README')
| -rw-r--r-- | extras/volume_id/README | 59 |
1 files changed, 23 insertions, 36 deletions
diff --git a/extras/volume_id/README b/extras/volume_id/README index 44a9a875f3..9459c880f8 100644 --- a/extras/volume_id/README +++ b/extras/volume_id/README @@ -1,25 +1,31 @@ vol_id - probe filesystem and read label and uuid -This program is normally called from a udev rule, to provide udev with the -filesystem type of a volume and the label and uuid to name a device node. -vol_id opens the blockdevice node specified at the commandline. The following -commandline switches are supported to specify what vol_id should print: - --export export key/value pairs - --type filesystem type - --label filesystem label - --label-raw raw label - --uuid filesystem uuid - --skip-raid don't probe for raid - --probe-all find possibly conflicting signatures - --help +vol_id will only return with a non-zero exit code if the string asked for, +is not empty. All trailing whitespace will be removed, spaces replaced by +underscore and slashes ignored. +Unmangled values are available in the --export mode as hex-encoded strings +in *_ENC= keys. + + $ extras/volume_id/vol_id --export /dev/sda6 + ID_FS_USAGE=filesystem + ID_FS_TYPE=ext3 + ID_FS_VERSION=1.0 + ID_FS_UUID=3e999973-00c9-4917-9442-b7633bd95b9e + ID_FS_UUID_ENC=3e999973-00c9-4917-9442-b7633bd95b9e + ID_FS_LABEL=devel + ID_FS_LABEL_ENC=devel + + $ extras/volume_id/vol_id --label /dev/sda6 + devel + + $ extras/volume_id/vol_id --type /dev/sda6 + ext3 -vol_id will only return successful if the string asked for, is not -empty. All trailing whitespace will be removed, spaces replaced by underscore -and slashes ignored. fstype probe label uuid version -------------------------------------------------- linux swap * * * * +btrfs * * * - ext * * * * reiserfs jr/3.5/3.6/4 * * * * fat (12, 16, 32) * * * * @@ -33,13 +39,13 @@ ufs * - - - cramfs * * - - sysv * * - * luks * - * - -hpfs * - - - +hpfs * * - - romfs * * - - squashfs * - - - minix * - - * ocfs (1, 2) * * * * vxfs * - - * -nss (netware) * * * +nss (netware) * - * * gfs, gfs2 * * * - oracleasm * * - - @@ -58,22 +64,3 @@ silicon_raid * - - - via_raid * - - - jmicron * - - - adaptec * - - - - -To give it a try, you may call it on the commandline: - $ extras/volume_id/vol_id --export /dev/sda6 - ID_FS_USAGE=filesystem - ID_FS_TYPE=ext3 - ID_FS_VERSION=1.0 - ID_FS_UUID=3e999973-00c9-4917-9442-b7633bd95b9e - ID_FS_LABEL=devel - ID_FS_LABEL_SAFE=devel - - $ extras/volume_id/vol_id --label /dev/sda6 - devel - - $ extras/volume_id/vol_id --type /dev/sda6 - ext3 - - -Any comment/questions/concerns to me: - Kay Sievers <kay.sievers@vrfy.org> |