On 1/16/19 12:30 PM, Lennart Poettering wrote:
On Di, 15.01.19 23:39, Jóhann B. Guðmundsson (johannbg@xxxxxxxxx) wrote:
[Service]
ExecStart=/bin/bash -c '/usr/bin/mv -t /var/lib/pstore /sys/fs/pstore/*'
Restart=on-success
While this would certainly work, I think I'd prefer a version in C
and not depend on an installed shell for this. I mean, so far systemd
has been an excercise in keeping shell out of the default codepaths in
the boot process...
Moreover, we want a recognizable journal message (i.e. one with
MESSAGE_ID) to be generated when we move a file out of pstore, much
like we have it for coredumps and so on, and as soon as you do more
than just the basic "mv" it gets nastier and nastier to do this from
shell, while it is easy from C.
Lennart
--
Lennart Poettering, Red Hat
Lennart,
As this is my first venture into systemd, I've spent some time looking
into the source for coredump. I chose this as it was mentioned in this
thread. As a I look at this source, I see how to create the journal
entries (ie. when we move a file out of pstore), and other things are
unclear. Some questions:
- if I were to start by copying and then modifying an existing systemd
utility, would you recommend coredump, or something else?
- do you anticipate this pstore utility needing to handling the likes of
acls, xattrs, fields, etc?
- would there be a need for the server that is in coredump?
I admit to these being really newbie questions, I apologize. If there is
a recommended developer reading (my google searches turned up mostly
user-perspective hits), I'd greatly appreciate a pointer.
Also, I have other tasks on my plate, so I am working on this but not as
my sole priority. I ask for patience.
Thanks,
eric
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