查看uuid有以下几种方：
1. sudo 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"
2. 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
3. sudo 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=
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