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If "3", "5", "systemd.unit=", or similar are present on the kernel command line,
the system will not enter into offline update. This behaviour is in line with the
general logic that configuration on the kernel command line has higher priority
than the configuration on disk, but is rather surprising. Emit a warning to help
users diagnose the situation.
https://bugzilla.redhat.com/show_bug.cgi?id=1405439#c4
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This should be handled fine now by .dir-locals.el, so need to carry that
stuff in every file.
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string-util.[ch]
There are more than enough calls doing string manipulations to deserve
its own files, hence do something about it.
This patch also sorts the #include blocks of all files that needed to be
updated, according to the sorting suggestions from CODING_STYLE. Since
pretty much every file needs our string manipulation functions this
effectively means that most files have sorted #include blocks now.
Also touches a few unrelated include files.
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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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After all it is now much more like strjoin() than strappend(). At the
same time, add support for NULL sentinels, even if they are normally not
necessary.
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The offline update mechanism is explicitly designed to work with a
separate /var. systemd-update-generator is supposed to run early,
before filesystems are mounted, so it cannot check if the
/system-update symlink actually points to anything.
The update is run *after* filesystems are mounted, so it should be
able to access the target of the symlink without trouble.
https://bugzilla.redhat.com/show_bug.cgi?id=1178978
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Using the same scripts as in f647962d64e "treewide: yet more log_*_errno
+ return simplifications".
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If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.
Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'
Plus some whitespace, linewrap, and indent adjustments.
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It's polite to print the name of the link that wasn't created,
and it makes little sense to print the target.
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also a number of minor fixups and bug fixes: spelling, oom errors
that didn't print errors, not properly forwarding error codes,
few more consistency issues, et cetera
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Previously generated units were always placed at the end of the search
path. With this change there will be three unit dirs instead of one, to
place generated entries at the beginning, in the middle and at the end
of the search path:
beginning: for units that need to override all configuration, regardless
of user or vendor. Example use: system-update-generator uses this to
temporarily redirect default.target.
middle: for units that need to override vendor configuration, but not
vendor configuration. Example use: /etc/fstab should override vendor
supplied configuration (think /tmp), but should not override native user
configuration.
end: does not override anything but is available as well. Possible usage
might be to convert D-Bus bus service files to native units but allowing
vendor supplied native units to win.
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deadlocks
This makes all generators log to kmsg by default.
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http://freedesktop.org/wiki/Software/systemd/SystemUpdates
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