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import subprocess
import os
def persistent_modprobe(module):
"""Load a kernel module and configure for auto-load on reboot."""
if not os.path.exists('/etc/rc.modules'):
open('/etc/rc.modules', 'a')
os.chmod('/etc/rc.modules', 111)
with open('/etc/rc.modules', 'r+') as modules:
if module not in modules.read():
modules.write('modprobe %s\n' % module)
def update_initramfs(version='all'):
"""Updates an initramfs image."""
return subprocess.check_call(["dracut", "-f", version])
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