Description of problem:

The OSTree system uses content-addressed storage, and when initramfs images generated by dracut are in the tree, because the cpio format contains modification and it causes a different checksum every time
it's created, so causing the download of the initrd even if not changed from last time.

Dracut has already support for --reproducible and it is used whenever it is supported by cpio.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. cpio --help | grep reproducible


Actual results:

no support for --reproducible


Expected results:

--reproducible is supported

Additional info:

The backport of the upstream patch:

commit 3945f9db44c935608caa5f084fd7f67ae59ee9e1
Author: Sergey Poznyakoff <gray.ua>
Date:   Mon Dec 1 15:02:38 2014 +0200

    New options to create device and inode-independent archives.
    
    * src/util.c (inode_val): New member trans_inode
    (find_inode_val): New function.
    (find_inode_file): Rewrite using the above.
    (add_inode): Initialize the trans_inode member
    depending on the value of renumber_inodes_option.
    (get_inode_and_dev): New function.
    (stat_to_cpio): Use get_inode_and_dev.
    (arf_stores_inode_p): New function.
    * src/extern.h (renumber_inodes_option)
    (ignore_devno_option): New externs.
    * src/global.c (renumber_inodes_option)
    (ignore_devno_option): New variables.
    * src/main.c: Add new options.
    
    * NEWS: Document changes.
    * doc/cpio.1: Document new options.
    * doc/cpio.texi: Likewise.


is required