我正在尝试弄清楚 dm-X 在哪个分区上。它在 /dev/sdaX 上,但是哪个 X?我遗漏了什么?我知道那里有是找出这个问题的一种方法。我需要增加物理卷,但直到我知道要触及哪个分区后才能这样做。以下是我迄今为止尝试过的方法:
root@debian:~# ls /dev/sda*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda5
root@debian:~# ls -l /dev/mapper/*
crw------- 1 root root 10, 59 Jan 24 15:33 /dev/mapper/control
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-home -> ../dm-6
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-root -> ../dm-1
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-swap_1 -> ../dm-4
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-tmp -> ../dm-5
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-usr -> ../dm-2
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/debian-var -> ../dm-3
lrwxrwxrwx 1 root root 7 Jan 24 15:33 /dev/mapper/sda5_crypt -> ../dm-0
root@debian:~# pvs
PV VG Fmt Attr PSize PFree
/dev/dm-0 debian lvm2 a- 7.76g 0
root@debian:~# pvscan
PV /dev/dm-0 VG debian lvm2 [7.76 GiB / 0 free]
Total: 1 [7.76 GiB] / in use: 1 [7.76 GiB] / in no VG: 0 [0 ]
root@debian:~# pvdisplay
--- Physical volume ---
PV Name /dev/dm-0
VG Name debian
PV Size 7.76 GiB / not usable 1020.00 KiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1986
Free PE 0
Allocated PE 1986
PV UUID cR4fIF-sUtS-edOh-7bB2-eKgV-jf1H-oHy3Ml
答案1
您的列表/dev/mapper
显示sda5_crypt
指向/dev/dm-0
,因此底层分区可能是/dev/sda5
。如果您想确定,请检查/etc/crypttab
。如果您想真的当然,使用dmsetup ls
。