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We probe for all known filesystems to find conflicting signatures. If we find multiple matching signatures and one of the detected filesystem types claims that it can not co-exist with any other filesystem type, we do not return a probing result. We can not afford to mount a volume with the wrong filesystem code and possibly corrupt it. Linux ssytems have the problem of dozens of possible filesystem types, and volumes with left-over signatures from former filesystem types. Invalid signature need to be removed from the volume to make the filesystem detection successful. We do not want to read that many bytes from probed floppies, skip volumes smaller than a usual floppy disk. |
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| .. | ||
| lib | ||
| .gitignore | ||
| Makefile.am | ||
| README | ||
| vol_id.c | ||
| vol_id.xml | ||
vol_id - probe filesystem and read label and uuid 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 fstype probe label uuid version -------------------------------------------------- linux swap * * * * btrfs * * * - ext * * * * reiserfs jr/3.5/3.6/4 * * * * fat (12, 16, 32) * * * * ntfs * * * * jfs * * * - xfs * * * - hfs (plus, wrapped) * * * - udf * * - - iso9660 * * - - ufs * - - - cramfs * * - - sysv * * - * luks * - * - hpfs * * - - romfs * * - - squashfs * - - - minix * - - * ocfs (1, 2) * * * * vxfs * - - * nss (netware) * - * * gfs, gfs2 * * * - oracleasm * * - - Raid members are detected to prevent the probing for a filesystem ----------------------------------------------------------------- linux raid (md) * * * * LVM 1 * - - - LVM 2 * - - * ddf * - * * highpoint * - - - isw_raid * - - - lsi_raid * - - - nvidia_raid * - - - promise_raid * - - - silicon_raid * - - - via_raid * - - - jmicron * - - - adaptec * - - -