Install rc.local missing on CentOS 7

noly · Jul 25, 2017

Let's take a look at this error popping up during the mysqltempdir installation:

Code:

ls: cannot access /etc/rc.d/rc.local: No such file or directory
chmod: cannot access ‘/etc/rc.d/rc.local’: No such file or directory
ls: cannot access /etc/rc.d/rc.local: No such file or directory
no crontab for root
11 */23 * * * /usr/local/src/centminmod/tools/autoprotect.sh 2>/dev/null
11 */23 * * * /usr/local/src/centminmod/tools/autoprotect.sh 2>/dev/null
0 */4 * * * /usr/bin/cminfo_updater 2>/dev/null
ls: cannot access /etc/rc.d/rc.local: No such file or directory
chmod: cannot access ‘/etc/rc.d/rc.local’: No such file or directory
ls: cannot access /etc/rc.d/rc.local: No such file or directory

In case you need the install.log....

error in mysqltempdir installation - /etc/rc.d/rc.local · GitHub

eva2000 · Jul 25, 2017

what's output for

Code (Text):

grep -rin 'chmod: cannot access' /root/centminlogs/

and

Code (Text):

ls -lah /etc/rc.d/rc.local

and

Code (Text):

rpm -ql systemd | grep rc.local

and

Code (Text):

systemctl status rc-local.service

normally should only be

Code (Text):

grep -rin 'chmod: cannot access' /root/centminlogs/                  
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_230717-000213_install.log:18568:chmod: cannot access ‘/var/log/lfd.log*’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_230717-000213_install.log:18578:chmod: cannot access ‘/etc/csf/*.cgi’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_230717-000213_install.log:18582:chmod: cannot access ‘/etc/csf/*.php’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_230717-000213_install.log:18584:chmod: cannot access ‘/etc/csf/*.py’: No such file or directory

/etc/rc.d/rc.local is standard centos 6/7 file and should exist, if it doesn't then your centos 7 image provided by your web may not be 100% proper AFAIK but even if it's missing, rest of install should be fine from your install log. I updated 123.09beta01 to hide those errors for /etc/rc.d/rc.local

Code (Text):

ls -lah /etc/rc.d/rc.local
-rwxr-xr-x 1 root root 548 Jul 22 23:57 /etc/rc.d/rc.local

Code (Text):

rpm -ql systemd | grep rc.local
/etc/rc.d/rc.local
/etc/rc.local
/usr/lib/systemd/system-generators/systemd-rc-local-generator
/usr/lib/systemd/system/rc-local.service

noly · Jul 25, 2017

Pronto...

Code:

[root@]# grep -rin 'chmod: cannot access' /root/centminlogs/
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_250717-115029_git_updatecur_branch.log:5: Do you want to update your local Centmin Mod Git code ? [y/n]: grep -rin 'chmod: cannot access' /root/centminlogs/
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_250717-110305_install.log:21188:chmod: cannot access ‘/var/log/lfd.log*’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_250717-110305_install.log:21198:chmod: cannot access ‘/etc/csf/*.cgi’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_250717-110305_install.log:21202:chmod: cannot access ‘/etc/csf/*.php’: No such file or directory
/root/centminlogs/centminmod_1.2.3-eva2000.09.005_250717-110305_install.log:21204:chmod: cannot access ‘/etc/csf/*.py’: No such file or directory

Code:

[root@]# ls -lah /etc/rc.d/rc.local
ls: Zugriff auf /etc/rc.d/rc.local nicht möglich: Datei oder Verzeichnis nicht gefunden

..it means "not found".

Code:

[root@]# rpm -ql systemd | grep rc.local
/etc/rc.d/rc.local
/etc/rc.local
/usr/lib/systemd/system-generators/systemd-rc-local-generator
/usr/lib/systemd/system/rc-local.service

Code:

[root@]# systemctl status rc-local -l

● rc-local.service - /etc/rc.local Compatibility

   Loaded: loaded (/etc/systemd/system/rc-local.service; disabled; vendor preset: disabled)

   Active: inactive (dead)

Jul 25 09:23:05 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:13 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:13 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:41 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:41 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:42 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:24:42 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:34:45 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 09:56:57 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored
Jul 25 11:49:56 xxxsystemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored

Regarding your guess...

"/etc/rc.d/rc.local is standard centos 6/7 file and should exist, if it doesn't then your centos 7 image provided by your web may not be 100% proper"

I researched that rc.local is now considered a service which is turned "off" by default. The default rc-local file says:

Code:

#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.

So since it's actually obsolete and not needed by centmin mod i agree on simply hiding the error message.

eva2000 · Jul 26, 2017

rc.local in centos 7 is turned off by default, but centmin mod automatically turns it on as it is used by centmin mod. Hence, why you got the errors as centmin mod tried to turn on the usage of rc.local via chmod +x and ls listing of the file to check that the right permissions were set.

every centos 7 server I have used as rc.local still, so your image must be a be a bit different in not even making it available
Code (Text):
cat /etc/rc.d/rc.local    
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
working
Code (Text):
systemctl status rc-local -l
● rc-local.service - /etc/rc.d/rc.local Compatibility
   Loaded: loaded (/usr/lib/systemd/system/rc-local.service; static; vendor preset: disabled)
   Active: active (exited) since Mon 2017-07-24 20:52:26 UTC; 23h ago

Jul 24 20:52:26 host.domain.com systemd[1]: Starting /etc/rc.d/rc.local Compatibility...
Jul 24 20:52:26 host.domain.com systemd[1]: Started /etc/rc.d/rc.local Compatibility.
your system will work with centmin mod install though you miss out on some potential optimisations I do via rc.local so will need to work out a way to do it via systemd services for centos 7 instead

what happens if you run following commands
Code (Text):
systemctl start rc-local
systemctl enable rc-local
systemctl status rc-local -l
and what is contents of /etc/systemd/system/rc-local.service ?
Code (Text):
cat /etc/systemd/system/rc-local.service
as seems to not be a default file on any of my centos 7 systems
Code (Text):
cat /etc/systemd/system/rc-local.service
cat: /etc/systemd/system/rc-local.service: No such file or directory
Code (Text):
yum provides /etc/systemd/system/rc-local.service --disableplugin=priorities
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.linode.com
 * epel: fedora-epel.mirrors.tds.net
 * extras: mirrors.linode.com
 * rpmforge: repoforge.mirror.constant.com
 * updates: mirrors.linode.com
No matches found
google search for /etc/systemd/system/rc-local.service shows it as instructions for Ubuntu systemd rc.local setup and not CentOS 7, so your web host who created the CentOS 7 image your using probably messed up How can I execute command on startup (rc.local alternative) on Ubuntu 16.10 or outdated web site guide instructions

eva2000 · Jul 26, 2017

i wrote a quick fix script which alters your rc.local setup as it isn't centos 7 default and changes it's rc.local configuration to standard centos 7 expected setup. You can run this command to run it and fix your system rc.local setup. Please post output from this command run too
Code (Text):
curl -sL https://gist.githubusercontent.com/centminmod/8b981931c4deb950e7a51b89e7679d5e/raw/rc.local.sh | bash
who's your web host btw, so can take note for future instances. Though I will be updating 123.09beta01 code to detect for this rc.local misconfiguration in future too

edit: 123.09beta01 has been updated with fix/detection as well Beta Branch - CentOS 7 non-standard rc.local detection & correction now so running centmin.sh menu option 23 submenu option 2 will update the centmin mod code. Then on first re-run of centmin.sh the auto workaround fix will be automatically applied to a CentOS 7 system which has detected missing /etc/rc.d/rc.local file and has the incorrect rc.local service file

noly · Jul 26, 2017

Thank you for the fix. I am no sure if it is web host related...my guess is that it is related to CentOS 7.3.xxxx.

Here are the requested outputs:

Code:

[root@ ~]# systemctl start rc-local
[root@ ~]# systemctl enable rc-local

Created symlink from /etc/systemd/system/multi-user.target.wants/rc-local.service to /etc/systemd/system/rc-local.service.

[root@ ~]# systemctl status rc-local -l
● rc-local.service - /etc/rc.local Compatibility
   Loaded: loaded (/etc/systemd/system/rc-local.service; enabled; vendor preset: disabled)
   Active: active (exited) since Di 2017-07-25 22:44:53 UTC; 36s ago

systemd[1]: Starting /etc/rc.local Compatibility...
systemd[1]: Started /etc/rc.local Compatibility.
systemd[1]: [/etc/systemd/system/rc-local.service:11] Support for option SysVStartPriority= has been removed and it is ignored

Code:

[root@ ~]# cat /etc/systemd/system/rc-local.service
[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

Code:

[root@ ~]# curl -sL https://gist.githubusercontent.com/centminmod/8b981931c4deb950e7a51b89e7679d5e/raw/rc.local.sh | bash
cat /etc/systemd/system/rc-local.service
[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

/etc ~
ln: die symbolische Verknüpfung „/etc/rc.local“ konnte nicht angelegt werden: Die Datei existiert bereits
~
● rc-local.service - /etc/rc.d/rc.local Compatibility
   Loaded: loaded (/usr/lib/systemd/system/rc-local.service; enabled; vendor preset: disabled)
   Active: active (exited) since Di 2017-07-25 22:59:00 UTC; 4ms ago
  Process: 17004 ExecStart=/etc/rc.d/rc.local start (code=exited, status=0/SUCCESS)

systemd[1]: Starting /etc/rc.d/rc.local Compatibility...
systemd[1]: Started /etc/rc.d/rc.local Compatibility.

noly · Jul 26, 2017

Out of curiosity....

Which optimizations are implemented?

And don't they presuppose a reboot of the server?

eva2000 · Jul 26, 2017

thanks the script run output confirms it's now fixed on your server for proper rc.local usage

the rc.local related tweaks are system environment dependent and only applied dynamically if certain criteria are satisified i.e. non-openvz vps vs openvz vps etc

you can see references to rc.local in github repo for centmin mod here which include detecting if your system supports transparent huge pages without redis server detected and enabling php 7 zend opcache transparent huge pages support, open file descriptor limits, optimal nf_conntrack hashsize and transparent huge page count if support is detected via dynamically configured value is based on the detected cpu cache size (and accounts for numa awareness for multiple cpu sockets) and system memory availability etc

rc.local changes are applied only at boot/reboot time or reinforced at boot/reboot as they are applied inline/online/dynamically to existing system but require rc.local to reapply them on reboots

noly · Jul 26, 2017

So your recommendation would be to reboot server after one has installed centmin?

eva2000 · Jul 26, 2017

noly said: ↑

So your recommendation would be to reboot server after one has installed centmin?
Click to expand...

run centmin.sh once, exit via menu option 24 to see if any other updates get applied to rc.local and then run these commands as you'd be missing this from initial install setup configuration
Code (Text):
echo "ulimit -n 262144" >> /etc/rc.local
/usr/local/src/centminmod/tools/hptweaks.sh
hptweaks.sh will reapply nf_conntrack dynamic hashsize configuration if it applies to your system
then check contents of /etc/rc.d/rc.local
Code (Text):
cat /etc/rc.d/rc.local
reboot system to test if rc.local runs as
Code (Text):
ulimit -aH
as open file descriptor limit should report = 262144
Code (Text):
ulimit -aH
core file size          (blocks, -c) unlimited
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 3941
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 262144
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) unlimited
cpu time               (seconds, -t) unlimited
max user processes              (-u) 8192
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

noly · Jul 26, 2017

Indeed...

Code:

[root@ ~]# ulimit -aH
core file size          (blocks, -c) unlimited
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 23151
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 262144
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) unlimited
cpu time               (seconds, -t) unlimited
max user processes              (-u) 8192
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

So...the next time i set up centmin on a fresh baked centos7 the values should be the same AFTER rebooting.

It may make sense to add the recommendation of rebooting to the docs.

eva2000 · Jul 26, 2017

noly said: ↑

So...the next time i set up centmin on a fresh baked centos7 the values should be the same AFTER rebooting.

It may make sense to add the recommendation of rebooting to the docs.
Click to expand...

no need to reboot, the settings are applied dynamically to existing server session just they are lost on reboot without a working rc.local hence why centmin mod applies settings to rc.local as well to ensure they are intact on reboots

noly · Jul 26, 2017

5 stars for the logic!

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