（1）查詢所有存儲設備的UUID：blkid。

（2）查詢指定設備的UUID：blkid /dev/sda5。

# blkid /dev/sda1: UUID="9ADAAB4DDAAB250B" TYPE="ntfs" /dev/sdb1: UUID="B2FCDCFBFCDCBAB5" TYPE="ntfs" /dev/sdb5: UUID="46FC5C74FC5C5FEB" TYPE="ntfs" /dev/sdb6: TYPE="swap" UUID="2cec6109-5bcf-45a3-ba1b-978b041c037f" /dev/sdb8: UUID="9ee6f22d-b394-422c-9b4a-1525a3220942" SEC_TYPE="ext2" TYPE="ext3" /dev/sdb7: UUID="4bcb9381-6e25-4304-8743-f882039ff3ad" TYPE="ext3"

vol_id /dev/sda1 ID_FS_USAGE=filesystem ID_FS_TYPE=reiserfs ID_FS_VERSION=3.6 ID_FS_UUID=be6d8295-a1c4-48e9-b68d-f4b043cd5f2c ID_FS_UUID_ENC=be6d8295-a1c4-48e9-b68d-f4b043cd5f2c ID_FS_LABEL= ID_FS_LABEL_ENC= ID_FS_LABEL_SAFE=

ls -l /dev/disk/by-uuid lrwxrwxrwx 1 root root 10 2008-05-15 22:37 2cec6109-5bcf-45a3-ba1b-978b041c037f -> ../../sdb6 lrwxrwxrwx 1 root root 10 2008-05-15 22:37 46FC5C74FC5C5FEB -> ../../sdb5 lrwxrwxrwx 1 root root 10 2008-05-15 22:37 4bcb9381-6e25-4304-8743-f882039ff3ad -> ../../sdb7 lrwxrwxrwx 1 root root 10 2008-05-15 22:37 9ee6f22d-b394-422c-9b4a-1525a3220942 -> ../../sdb8

（1）安裝NetworkManager依賴包：yum -y install NetworkManager

（2）啟動NetworkManager服務：service NetworkManager start

（3）查看網卡的UUID：nmcli con

通過查看/etc/sysconfig/network-scripts/ifcfg-eth0文件查詢UUID，隻有當ifcfg-eth0文件能正常查看時才有效。

cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep UUID

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