[systemd-devel] How to execute Shell before rootfs mount on centos7

[Ankele zhang]

Hello All:
    How to execute shell before rootfs mounted on CentOS7.
    On CentOS6, we can modify init shell in initramfs.img to do something
we need. But on CentOS7 my beloved init has be changed to systemd and
systemd has no shell script.
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