Device /dev/sdb1 not found (or ignored by filtering)

awmusic12635 asked:

I am trying to add a physical volume for use to add volume groups and thus LV inside them. Sadly I am getting the following error.

[root@server ~]# pvcreate /dev/sdb1
Device /dev/sdb1 not found (or ignored by filtering).

[root@server ~]# fdisk -l /dev/sdb

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdb: 19966.2 GB, 19966213488640 bytes
255 heads, 63 sectors/track, 2427420 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

Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      267350  2147483647+  ee  GPT

I would appreciate any help you could give. This would be my first time having to add a pv and when researching the issue I didn’t come across anything that was of much help.

OS is centos 6 – 64bit

Filters

# By default we accept every block device:
filter = [ "a/.*/" ]

# Exclude the cdrom drive
# filter = [ "r|/dev/cdrom|" ]

# When testing I like to work with just loopback devices:
# filter = [ "a/loop/", "r/.*/" ]

# Or maybe all loops and ide drives except hdc:
# filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]

# Use anchors if you want to be really specific
# filter = [ "a|^/dev/hda8$|", "r/.*/" ]

Parted:

parted /dev/sdb "unit s" "print"
Model: Adaptec AdaptecRAID5 (scsi)
Disk /dev/sdb: 38996510720s
Sector size (logical/physical): 512B/512B
Partition Table: gpt

My answer:


Your parted output shows that you don’t have any partitions, thus /dev/sdb1 doesn’t exist. You need to create the partition first.


View the full question and answer on Server Fault.

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