加了一颗硬盘，以为是SDD，却是SDC..
SDD原本有加入LVM，被我parted mklabel loop了
试过rescue 还是看不到分割表
用lsblk:
sda 8:0 0 2.7T 0 disk
`-sda1 8:1 0 2.7T 0 part
`-bme-root (dm-0) 252:0 0 5.6T 0 lvm /
sdb 8:16 0 232.9G 0 disk
|-sdb1 8:17 0 243M 0 part /boot
|-sdb2 8:18 0 1K 0 part
`-sdb5 8:21 0 232.7G 0 part
|-bme-root (dm-0) 252:0 0 5.6T 0 lvm /
`-bme-swap_1 (dm-1) 252:1 0 16G 0 lvm [SWAP]
sdc 8:32 0 2.7T 0 disk
|-sdc1 8:33 0 128M 0 part
`-sdc2 8:34 0 2.7T 0 part
sdd 8:48 0 2.7T 0 disk
`-sdd2 8:50 0 2.7T 0 part
`-bme-root (dm-0) 252:0 0 5.6T 0 lvm /
刚刚用了testdisk，好像OK，只是lsblk一看，
SD的顺序整个大洗牌@@
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 232.9G 0 disk
|-sda1 8:1 0 243M 0 part /boot
|-sda2 8:2 0 1K 0 part
`-sda5 8:5 0 232.7G 0 part
|-bme-root (dm-0) 252:0 0 5.6T 0 lvm /
`-bme-swap_1 (dm-1) 252:1 0 16G 0 lvm [SWAP]
sdb 8:16 0 2.7T 0 disk
sdc 8:32 0 2.7T 0 disk
|-sdc1 8:33 0 37.3G 0 part
`-sdc2 8:34 0 2.7T 0 part
`-bme-root (dm-0) 252:0 0 5.6T 0 lvm /
sdd 8:48 0 2.7T 0 disk
`-sdd1 8:49 0 2.7T 0 part
`-bme-root (dm-0) 252:0 0 5.6T 0 lvm /