This change allows to specify a watchdog(9) timeout for a system
shutdown. The timeout is activated when the watchdogd daemon is
stopped. The idea is to a prevent any indefinite hang during late
stages of the shutdown. The feature is implemented in rc.d/watchdogd,
it builds upon watchdogd -x option.
Note that the shutdown timeout is not actiavted when the watchdogd
service is individually stopped by an operator. It is also not
activated for the 'shutdown' to the single-user mode. In those cases it
is assumed that the operator knows what they are doing and they have
means to recover the system should it hang.
Significant subchanges and implementation details:
- the argument to rc.shutdown, completely unused before, is assigned to
rc_shutdown variable that can be inspected by rc scripts
- init(8) passes "single" or "reboot" as the argument, this is not
changed
- the argument is not mandatory and if it is not set then rc_shutdown is
set to "unspecified"
- however, the default jail management scripts and jail configuration
examples have been updated to pass "jail" to rc.shutdown, just in case
- the new timeout can be set via watchdogd_shutdown_timeout rc option
- for consistency, the regular timeout can now be set via
watchdogd_timeout rc option
- watchdogd_shutdown_timeout and watchdogd_timeout override timeout
specifications in watchdogd_flags
- existing configurations, where the new rc options are not set, should
keep working as before
I am not particularly wed to any of the implementation specifics.
I am open to changing or removing any of them as long as the provided
functionality is the same (or very close) to the proposed one.
For example, I think it can be implemented without using watchdogd -x,
by means of watchdog(1) alone. In that case there would be a small
window between stopping watchdogd and running watchdog, but I think that
that is acceptable.
Reviewed by: bcr (man page changes)
MFC after: 5 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D21221
The EXAMPLES section does not contain any examples of output formats for
the old-style scripts. Remove the misleading bits stating otherwise.
Reviewed by: bcr, imp
Approved by: src (imp)
Differential Revision: https://reviews.freebsd.org/D21552
Legacy rc.d scripts (.sh extension) have not been supported since
r193118. Remove the outdated references to the legacy format, as they
are no longer valid.
Bug: 193936
MFC after: 1 week
Reviewed by: cress, emaste (mentor)
Differential Revision: https://reviews.freebsd.org/D18666
This adds new keywords to rc/service to enable/disable a service's
rc.conf(5) variable and "delete" to remove the variable.
When the "service_delete_empty" variable in rc.conf(5) is set to "YES"
(default is "NO") an rc.conf.d file (in /etc/ or /usr/local/etc) is
deleted if empty after modification using "service $foo delete".
Submitted by: lme (modified)
Reviewed by: 0mp (previous version), lme, bcr
Relnotes: yes
Sponsored by: Smule, Inc.
Differential Revision: https://reviews.freebsd.org/D17113
and runs scripts containing "KEYWORD: resume" with single "resume" argument.
Working example is the port sysutils/cpupdate that defines
extra_commands="resume" to reload CPU microcode cleared
by suspend/resume sequence.
This change does nothing for a system having no scripts with KEYWORD: resume.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D15247
files. This is a follow up commit to r324721, which added sysrc(8) to
the SEE ALSO list.
Submitted by: Kurt Jaeger (lists at opsec.eu)
MFC after: 1 week
These scripts, containing
# KEYWORD: firstboot
will only be run if a sentinel file (default: /firstboot, configurable
via the rc.conf ${firstboot_sentinel} variable) exists; this sentinel
file will be deleted at the end of the boot process.
Scripts can request that the system reboot after the first boot by
creating the file ${firstboot_sentinel}-reboot.
This functionality is expected to be useful for embedded systems and
virtual machine images, where it may be desirable to
(a) download and install updates which became available between when
the image was created and when it was "turned on";
(b) download and install packages which may be newer than those
which were available when the image was created;
(c) install packages which run binaries during their install process,
bypassing the problem of cross-architecture installs;
(d) resize filesystems to match the disk onto which a VM image was
installed;
(e) perform initialization tasks relevant to cloud systems (e.g.,
Amazon's Elastic Compute Cloud);
and likely to perform many other one-time initialization functions.
Document this new functionality in rc.conf(5) and rc(8). [2]
Reviewed by: freebsd-current, freebsd-rc [1]
Reviewed by: Warren Block [2]
MFC after: 3 days
generates a configuration suitable for running unbound as a caching
forwarding resolver, and configures resolvconf(8) to update unbound's
list of forwarders in addition to /etc/resolv.conf. The initial list
is taken from the existing resolv.conf, which is rewritten to point to
localhost. Alternatively, a list of forwarders can be provided on the
command line.
To assist this script, add an rc.subr command called "enabled" which
does nothing except return 0 if the service is enabled and 1 if it is
not, without going through the usual checks. We should consider doing
the same for "status", which is currently pointless.
Add an rc script for unbound, called local_unbound. If there is no
configuration file, the rc script runs local-unbound-setup to generate
one.
Note that these scripts place the unbound configuration files in
/var/unbound rather than /etc/unbound. This is necessary so that
unbound can reload its configuration while chrooted. We should
probably provide symlinks in /etc.
Approved by: re (blanket)
scripts in rc.d to stop rc(8) from booting into multi-user mode when
a critical or severe error condition is encountered.
o Modify scripts in etc/rc.d that already implemented this functionality
independently.
o Document it.
[1] - This subroutine was implemented in FreeBSD in rc.d/fsck. I moved it
to rc.subr(8). Our version differs slightly in that it takes an
optional argument to stop the boot even if "autoboot" is not set.
Obtained from: NetBSD
MFC after: 2 weeks
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'
BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...
Reviewed by: Silence from cvs diff -b
MFC after: 7 days
