udevadm - maisenakajima @ ウィキ

udevadm の出力結果

[root@rhel6 ~]# udevadm info --query=path --name=/dev/sda
/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda

[root@rhel6 ~]# udevadm info --query=symlink --name=/dev/sda
block/8:0 disk/by-id/ata-ST330621A_7EF27GH9 disk/by-id/scsi-SATA_ST330621A_7EF27GH9 disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0

[root@rhel6 ~]# udevadm info --query=property --name=/dev/sda
UDEV_LOG=3
DEVPATH=/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda
MAJOR=8
MINOR=0
DEVNAME=/dev/sda
DEVTYPE=disk
SUBSYSTEM=block
ID_ATA=1
ID_TYPE=disk
ID_BUS=ata
ID_MODEL=ST330621A
ID_MODEL_ENC=ST330621A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_REVISION=3.39
ID_SERIAL=ST330621A_7EF27GH9
ID_SERIAL_SHORT=7EF27GH9
ID_ATA_WRITE_CACHE=1
ID_ATA_WRITE_CACHE_ENABLED=1
ID_ATA_FEATURE_SET_HPA=1
ID_ATA_FEATURE_SET_HPA_ENABLED=1
ID_ATA_FEATURE_SET_PM=1
ID_ATA_FEATURE_SET_PM_ENABLED=1
ID_ATA_FEATURE_SET_SECURITY=1
ID_ATA_FEATURE_SET_SECURITY_ENABLED=0
ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=0
ID_ATA_FEATURE_SET_SMART=1
ID_ATA_FEATURE_SET_SMART_ENABLED=1
ID_ATA_FEATURE_SET_AAM=1
ID_ATA_FEATURE_SET_AAM_ENABLED=0
ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=128
ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=0
ID_ATA_DOWNLOAD_MICROCODE=1
ID_ATA_SATA=1
ID_ATA_SATA_SIGNAL_RATE_GEN1=1
ID_SCSI_COMPAT=SATA_ST330621A_7EF27GH9
ID_PATH=pci-0000:00:1f.2-scsi-0:0:0:0
ID_PART_TABLE_TYPE=dos
UDISKS_PRESENTATION_NOPOLICY=0
UDISKS_PARTITION_TABLE=1
UDISKS_PARTITION_TABLE_SCHEME=mbr
UDISKS_PARTITION_TABLE_COUNT=2
UDISKS_ATA_SMART_IS_AVAILABLE=1
DEVLINKS=/dev/block/8:0 /dev/disk/by-id/ata-ST330621A_7EF27GH9 /dev/disk/by-id/scsi-SATA_ST330621A_7EF27GH9 /dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0

[root@rhel6 ~]# udevadm info --query=all --name=/dev/sda
P: /devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda
N: sda
W: 36
S: block/8:0
S: disk/by-id/ata-ST330621A_7EF27GH9
S: disk/by-id/scsi-SATA_ST330621A_7EF27GH9
S: disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0
E: UDEV_LOG=3
E: DEVPATH=/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda
E: MAJOR=8
E: MINOR=0
E: DEVNAME=/dev/sda
E: DEVTYPE=disk
E: SUBSYSTEM=block
E: ID_ATA=1
E: ID_TYPE=disk
E: ID_BUS=ata
E: ID_MODEL=ST330621A
E: ID_MODEL_ENC=ST330621A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_REVISION=3.39
E: ID_SERIAL=ST330621A_7EF27GH9
E: ID_SERIAL_SHORT=7EF27GH9
E: ID_ATA_WRITE_CACHE=1
E: ID_ATA_WRITE_CACHE_ENABLED=1
E: ID_ATA_FEATURE_SET_HPA=1
E: ID_ATA_FEATURE_SET_HPA_ENABLED=1
E: ID_ATA_FEATURE_SET_PM=1
E: ID_ATA_FEATURE_SET_PM_ENABLED=1
E: ID_ATA_FEATURE_SET_SECURITY=1
E: ID_ATA_FEATURE_SET_SECURITY_ENABLED=0
E: ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=0
E: ID_ATA_FEATURE_SET_SMART=1
E: ID_ATA_FEATURE_SET_SMART_ENABLED=1
E: ID_ATA_FEATURE_SET_AAM=1
E: ID_ATA_FEATURE_SET_AAM_ENABLED=0
E: ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=128
E: ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=0
E: ID_ATA_DOWNLOAD_MICROCODE=1
E: ID_ATA_SATA=1
E: ID_ATA_SATA_SIGNAL_RATE_GEN1=1
E: ID_SCSI_COMPAT=SATA_ST330621A_7EF27GH9
E: ID_PATH=pci-0000:00:1f.2-scsi-0:0:0:0
E: ID_PART_TABLE_TYPE=dos
E: UDISKS_PRESENTATION_NOPOLICY=0
E: UDISKS_PARTITION_TABLE=1
E: UDISKS_PARTITION_TABLE_SCHEME=mbr
E: UDISKS_PARTITION_TABLE_COUNT=2
E: UDISKS_ATA_SMART_IS_AVAILABLE=1
E: DEVLINKS=/dev/block/8:0 /dev/disk/by-id/ata-ST330621A_7EF27GH9 /dev/disk/by-id/scsi-SATA_ST330621A_7EF27GH9 /dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0