Red Hat Bugzilla – Bug 978849
RFE: hooking a script into various stages of shutdown/rearly booot
Last modified: 2013-08-06 09:41:44 EDT
Description of problem:
Once we requested feature to see what happens during some stages.
There could be a way of hooking a script into various stages of shutdown/rearly booot
Version-Release number of selected component (if applicable):
Steps to Reproduce:
there is use case:
Try to execute some command before any other services start (previous rc.sysinit).
Try to execute some command after any other services start (previous rc.local).
user would like to see progress during boot/shutdown
$ man bootup
you can create unit files with "After=" and "Before=" to sort yourself into the bootup sequence.
For /etc/rc.local there is /lib/systemd/system/rc-local.service, which executes /etc/rc.local, if it exists. It is ordered "After=network.target".
To see what happens, remove "quiet" from the kernel command line, or inspect the journal after booting.
# journalctl -b
As explained already in comment #2 you can create unit files with "After=" and "Before=" to sort yourself into the bootup sequence.
We also still support rc.local, but only for compatibility reasons, the rc.local support is deliberately not advertised in the systemd documentation, since we discourage its use.
The systemd documentation in general does not document deprecated compatibility mechanisms to avoid promoting the use of them, ie it also does not document that the service and chkconfig commands can still be used.