En relisant la doc d'Adrien je crois que c'est ça :
/dev/mapper/vghdd-lvimage /home/thierry/image ext4 defaults 1 2
/dev/mapper/vghdd-lvmusique /home/thierry/musique ext4 defaults 1 2
/dev/mapper/vghdd-lvvideo /home/thierry/video ext4 defaults 1 2
Nan, c'est pas ça. Le redémarrage a planté. Pourtant:
ls /dev/mapper
control fedora-home fedora-root fedora-swap vghdd-lvimage vghdd-lvmusique vghdd-lvvideo
blkid -c /dev/null
/dev/sda1: UUID="D2ajbD-8ixq-KDJR-t9Zj-kCw9-E9d3-FRfMOb" TYPE="LVM2_member" PARTLABEL="data thierry" PARTUUID="1070d5e8-6a44-4534-b28a-a29c0fd678dd"
/dev/sdb1: UUID="c20acf18-e1a4-11e6-b89d-8952e6302ae3" TYPE="ext2" PARTUUID="0004bea1-01"
/dev/sdb5: UUID="93a015ca-ec70-4231-9695-b8aadf762a5b" TYPE="swap" PARTUUID="0004bea1-05"
/dev/sdb6: UUID="a85f269a-5622-4798-83ec-740790abc3f2" TYPE="ext4" PARTUUID="0004bea1-06"
/dev/nvme0n1: PTUUID="3aa4dae1-a7ed-4bb9-a7bd-788735f875c7" PTTYPE="gpt"
/dev/nvme0n1p1: SEC_TYPE="msdos" UUID="1848-CD69" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="084d4a1d-adca-4acd-ae96-1ee12de82f9e"
/dev/nvme0n1p2: UUID="9d20d259-583c-4c98-8d6f-5359f1a243bc" TYPE="ext4" PARTUUID="f1d8323a-d452-4326-b320-d4cba6bb19a8"
/dev/nvme0n1p3: UUID="l8wyMW-Qbuc-wfmI-OrEE-dgdj-h7ru-oITEJG" TYPE="LVM2_member" PARTUUID="498edb61-228e-4798-8d26-5ea681205bc3"
/dev/mapper/fedora-root: UUID="86a669ba-57f0-4d1d-9bc6-1a4108ff33e0" TYPE="ext4"
/dev/mapper/fedora-swap: UUID="321831b2-9f7b-4c3b-8758-75904448d084" TYPE="swap"
/dev/mapper/fedora-home: UUID="732a71d8-4a83-4a03-bd4c-02dfe2ef94f2" TYPE="ext4"
/dev/mapper/vghdd-lvmusique: UUID="2a4bec52-b79f-4d1a-ac3d-52a6c761e1a1" TYPE="ext4"
/dev/mapper/vghdd-lvimage: UUID="7fe1e52b-e50f-440a-9dd8-52a5f5cca56e" TYPE="ext4"
/dev/mapper/vghdd-lvvideo: UUID="db634cef-2ec1-4b80-ac6f-b3dec0dca37d" TYPE="ext4"
/dev/mapper/osprober-linux-sdb1: UUID="c20acf18-e1a4-11e6-b89d-8952e6302ae3" TYPE="ext2"
/dev/mapper/osprober-linux-sdb6: UUID="a85f269a-5622-4798-83ec-740790abc3f2" TYPE="ext4"
/dev/mapper/osprober-linux-vghdd-lvimage: UUID="7fe1e52b-e50f-440a-9dd8-52a5f5cca56e" TYPE="ext4"
/dev/mapper/osprober-linux-vghdd-lvmusique: UUID="2a4bec52-b79f-4d1a-ac3d-52a6c761e1a1" TYPE="ext4"
/dev/mapper/osprober-linux-vghdd-lvvideo: UUID="db634cef-2ec1-4b80-ac6f-b3dec0dca37d" TYPE="ext4"
J'ai essayé de voir avec gparted, mais il ne gère pas ce genre de partitions.