Machine can not boot with lvm.conf containing 'command_names = 1' or 'prefix="something"'

Solution Verified - Updated -


The LVM command_names & prefix configuration parameter are changing the normal lvm command outputs.

However, mkinitrd and iniscripts are known to use LVM command and parse output. Therefore, the 2 parameter shown above will wrongly parse output.
At best, the consequences are warning, at worst, the system wont boot.

In particular, with mkinitrd-, the machine will not even boot.

The error is as follow :

Parse error at byte 13 (line 1) : unexpected token
Failed to load config file /etc/lvm/lvm.conf
Internal error: _vginfos list should be empty


  • Red Hat Enterprise Linux (RHEL) 5, or RHEL 7
  • LVM2
  • Root file system belongs to a VG
  • mkdinitrd <

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