Ajuda com lvm apos instalacao do debian squeeze

Olá pessoal,

Eu instalei o debian squeeze com a opcao de instalacao com lvm.

Eu tenho duas perguntinhas básicas
quando eu dou o fdisk me aparece dms? o que são as DMs

fdisk -l

Disk /dev/sda: 73.4 GB, 73407868928 bytes
255 heads, 63 sectors/track, 8924 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006099c

Device Boot Start End Blocks Id System
/dev/sda1 * 1 32 248832 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 32 8925 71436289 5 Extended
/dev/sda5 32 8925 71436288 8e Linux LVM

Disk /dev/sdb: 73.4 GB, 73407868928 bytes
255 heads, 63 sectors/track, 8924 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf5f1246a

Device Boot Start End Blocks Id System
/dev/sdb1 1 8924 71681998+ 5 Extended

Disk /dev/dm-0: 348 MB, 348127232 bytes
255 heads, 63 sectors/track, 42 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 4118 MB, 4118806528 bytes
255 heads, 63 sectors/track, 500 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-1 doesn't contain a valid partition table

Disk /dev/dm-2: 8996 MB, 8996782080 bytes
255 heads, 63 sectors/track, 1093 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-2 doesn't contain a valid partition table

Disk /dev/dm-3: 2998 MB, 2998927360 bytes
255 heads, 63 sectors/track, 364 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-3 doesn't contain a valid partition table

Disk /dev/dm-4: 398 MB, 398458880 bytes
255 heads, 63 sectors/track, 48 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-4 doesn't contain a valid partition table

Disk /dev/dm-5: 56.3 GB, 56287559680 bytes
255 heads, 63 sectors/track, 6843 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-5 doesn't contain a valid partition table


Que raios são esses dm-0 dm-1 etc?

Eu estou tentando adicionar um hd novo o sdb...
devo colocar dentro desse dm?

para que serve esses dms?

Pra adicionar um novo disco LVM, você não precisa mexer em nada relacionado aos DMs.
Estes DMs é o mapeamento dos discos, não sei falar nada com mais precisão, porém não deve ser mexido, se o intuito é apenas criar novas partições LVM.

Se você quer adicionar um novo disco, como LVM, faça o processo de criação.

Que é formatar o novo disco no padrão LVM (fdisk -l /dev/sdb).
E criar os volumes lógicos, com os comandos pvcreate, vgcreate, lvcreate.

Procure algum tópico ensinando criar partições LVM.


Abç.