udevd will these days default to 'info' logging and thus will
often print out the 'starting version nnn' message (which is
logged at level 'info'), thus spamming the console, even on
'quiet' boots.
We generally expect a udev log level of err (the old default
from pre-October 2013) so we should set that explicilty before
launching udevd in order to suppress the spurious 'info' message.
As we are using the environment variable approach anyway, we
may as well use this method rather than setting the log level
later via udevadm control commands when rd.udev.info/debug are
given on the kernel command line.
The enviroment variable has been around since udev 6b493a20e1
around 2005 so should be safe to use in all cases without version
checks.
By convention, strstr should be a literal string match. Previously, it
would match as a glob pattern. Some code used that, so add new
functions strglob and strglobin to do what that code expects, and
specify them tightly too. strglob tests whether the glob pattern
matches the entire string (the name strglob is also used in the yorick
language, and that's what it does there), while strglobin tests whether
the glob pattern matches anywhere in the string.
Also tightens str_starts, str_ends, and str_replace to deal with
literal strings only. In a quick grep I did not find code that depended
on these functions matching globs.
Changes the call sites where strstr was used with glob patterns to use
strglobin or strglob as the intention seemed to be (or, in one case,
strstr with the * removed as it did not affect the result anyway).
It appears there is a simple substitution error in the pidof shell function which causes it to fail to find processes. In my case, processes started by 95nfs are not terminated in the cleanup hook. This causes knock-on effects disturbing the root filesystem service dependencies.
Enjoy,
Stig Telfer
Cached CMDLINE doesn't work 100%. For example the following case,
1. dracut starts to run dracut-cmdline.sh. CMDLINE is cached when calling
getarg 'rd.break=cmdline'.
2. In 92-parse-ibft.sh, ibft_to_cmdline() calls $(set_ifname ibft xx:xx..)
multiple times in each subshell.
3. In 1st call, set_ifname() will check $(getargs ifname) and write out
ifname=xxxx accordingly.
4. In 2nd call, set_ifname() will check $(getargs ifname) and it's wrong here.
Because in step 3, we introduce a new cmdline arg ifname=xxx, but CMDLINE
isn't updated. Thus we fail to get the new ifname arg.
It's doable to unset CMDLINE every time after a new cmdline arg is in. But
unset should be done in the parent process, because unset CMDLINE in a
subshell won't unset CMDLINE in its parent or sibling process. And also it's
painful to unset CMDLINE every time. In the future, functions and code
snippet could probably separate or move to other file, the unset CMDLINE could
malfunction again like this time.
So I'm thinking not to cache CMDLINE. It's doesn't hurt to re-read all the
cmdline args everytime. Because it's in initramfs, a non cached _getcmdline()
should be fast enough.
Please consider!
Thanks
WANG Chao
Currently when action_on_fail is enabled, the emergency_shell won't be called.
In kdump even though user specify the default action as emergency_shell,
dracut skip it. Now change the implementation of action_on_fail to depend
on a file which is created by kdump when making kdump initrd, then remove it
at the beginning of kdump. This can solve the explicit emergency_shell problem.
And action_on_fail won't need paramenters, remove the relevant description in
dracut man page.
Signed-off-by: Baoquan He <bhe@redhat.com>
Currently in initrd, hardware clock is always considered to use UTC time
format and system time zone is also UTC. Thus system time isn't correct
if hw clock is localtime or we're using other time zone in real root.
To fix this, install /etc/adjtime and /etc/localtime to initrd. If not
using systemd, install /usr/sbin/hwclock for dracut init to setup system
time.
[harald: combined the two hostonly if's]
Signed-off-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Harald Hoyer <harald@redhat.com>
Colin Guthrie