Unable to create pv for /dev/sdb1

RedHat
#1

Hi,

I’m using RHEL7 and i wanna cretae a new PV to add in LVM so i added 50 GB Harddisk but i’m unable to create PV for /dev/sdb1.

i googled and any links are not helped…Can any 1 help me out…

#2

with the 2 line input we cannot assume what you are trying to perform.

the error message says its mounted file system, check if the disk is already mounted ,

dmsetup remove may help to remove if any stale entry present on the system

#3

Hi

Un-mount your disk and than go for further steps and also share the out put of below command

#mount
#4

dmsetup ls

if you find the sdb1 then you need to remove it

dmsetup remove sdb1

then create pv on the disk

#5

Hi Rajesh,
Sorry for late reply…Below is the output for dmsetup ls

#6

Hi Raghu,
The output of mount…

Pasted image1219×517 16.1 KB

#7

/dev/sdb mounted on /test

umount /test

then try to create PV.

#8

Unmount it and make an partition ① and then create physical volume ②

①#fdisk /dev/sdb

②#pvcreate /devsdb1

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