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Oracle Linux 7: kpartx Fails to Create Partition Disk (Doc ID 2499334.1)

Last updated on JUNE 01, 2020

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Linux x86-64

Symptoms

On Oracle Linux (OL) 7 server, some multipath partition devices are not created.

For example, in the multipath configuration file (/etc/multipath.conf), below alias name is used, but partition device for 'mpathdisk' cannot be created.

multipath {
             wwid <xxxxxxxxxxxxxxxxxxxxxxxxxx>
             alias mpathdisk
}
multipath {
             wwid <yyyyyyyyyyyyyyyyyyyyyyyyyy>
             alias mpathdisk1
}


# kpartx /dev/mapper/disk
mpathdisk1 : 0 4294967167 /dev/mapper/mpathdisk 128

# ls -l /dev/mapper|grep mpathdisk
lrwxrwxrwx 1 root root 7 Oct 17 15:08 mpathdisk -> ../dm-0
lrwxrwxrwx 1 root root 8 Oct 17 15:10 mpathdisk1 -> ../dm-10
lrwxrwxrwx 1 root root 8 Oct 17 15:10 mpathdisk1p1 -> ../dm-19


On Oracle Linux 6, with same configuration, kpartx will create the partition device mpathdiskp1 for /dev/mapper/mpathdisk.

 

Cause

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In this Document
Symptoms
Cause
Solution


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