How to CHATTR +i a file on boot with rc.local

[mate2go]

Hi!

I want before login with "rc.local" the command /bin/chattr +i or /bin/chattr +a /path/to/file

"rc.local"
#!/bin/sh
mount -t ramfs -o rw,size=1024M ramfs /path/to/folder
/bin/sleep 4

/bin/tar xvzf /path/to/file.tar.gz -C /path/to/folder
/bin/sleep 4

/bin/chattr +a /path/to/file
/bin/sleep 2

exit 0

chattr +a don't set the +a attribute. chattr can't set the attribute of the file, because
error message says the file is not there, but the file is there.

When I set it manually, then it works.

What's wrong?

[pavlos_kairis]

I think the target file is in the /path/to/folder dir (which you created when you extracted the tarball)

[mate2go]

I don't know what is wrong about the chattr command on rc.local at boot.

I made a test.
Added to rc.local

/bin/chattr +ai /opt/test

Rebooted

Nothing changed on the test file.
Chattr don't write its +ai attribute to the test file.

[pavlos_kairis]

Is rc.local.service enabled and running?
usually the script goes into /etc/rc.local and is +x

[mate2go]

rc-local.service is disabled.

/etc/rc.local is +x

with rc-local.service enabled, it don't works too. Chattr says there is no valid path, but the path is correct to the file.

[pavlos_kairis]

I created a file, /opt/mate2go
lsattr /opt/mate2go shows --------------e----

Then I created /etc/rc.local with

    #!/bin/bash 
    /bin/chattr +ai /opt/mate2go

chmod 755 /etc/rc.local
systemctl start rc.local.service
reboot
lsattr /opt/mate2go shows `----ia--------e----`

Does this help?

[mate2go]

I'll try that out...

[mate2go]

That doesn't work on me.

Chattr does not set any attributes after the boot with rc.local.
My other commands in rc.local are working, only chattr does not.

It works manually.

[pavlos_kairis]

here's my /etc/rc.local

#!/bin/sh
touch /opt/mate2go
lsattr /opt/mate2go | logger
chattr +ai /opt/mate2go
lsattr /opt/mate2go | logger
chattr -ai /opt/mate2go
lsattr /opt/mate2go | logger

reboot

cat /var/log/syslog | grep mate2go

if you dont see 3 lines how the attributes changed, something else is wrong with your script.
Can you post your /etc/rc.local ?

[mate2go]

#!/bin/sh

/bin/chattr +ai /opt/test-file

exit

When I test it, on boot rc.local don't run chattr, manually in terminal chattr works.

My other commands in my rc.local are working on boot.

[pavlos_kairis]

can you post the output of ..

systemctl status rc.local.service and ls -l /etc/rc.local

[mate2go]

systemctl status rc.local.service and ls -l /etc/rc.local

Output:

Unit and.service could not be found.
Unit ls.service could not be found.
Unit etc-rc.local.mount could not be found.
● rc-local.service - /etc/rc.local Compatibility
Loaded: loaded (/etc/systemd/system/rc-local.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/rc-local.service.d
└─debian.conf
Active: active (exited) since Wed 2019-06-19 09:08:37 CEST; 9h ago

???
Unit and.service could not be found.
Unit ls.service could not be found.
Unit etc-rc.local.mount could not be found.

[pavlos_kairis]

they were two separate commands, it seems you typed the whole line.

systemctl status rc.local.service

ls -l /etc/rc.local

From your output, I do not see a Process running ... maybe stop the service and restart it.

[mate2go]

systemctl status rc.local.service

rc-local.service - /etc/rc.local Compatibility
Loaded: loaded (/etc/systemd/system/rc-local.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/rc-local.service.d
└─debian.conf
Active: active (exited) since Thu 2019-06-20 09:46:34 CEST; 2min 24s ago

ls -l /etc/rc.local

-rwxr-xr-x 1 root root 2957 Jun 19 18:19 /etc/rc.local

My other commands on boot in rc.local are working. Sorry, I don't want show my other commands in rc.local here.

Only chattr command on boot in rc.local don't work.

[pavlos_kairis]

your output of the status of rc.local is different from what I have (UM 19.04).
My screenshot. Which Ubuntu Mate are you running?

[mate2go]

Ubuntu Mate 18.04 v2 LTS (4.15.0-51-generic)

[pavlos_kairis]

I made a minimal UM18.04 VM, created /etc/rc.local, added chattr +ai /opt/mate2go, made it +x, enabled the service, and it worked. The only issue I see is the Loaded: line shows /lib/systemd/system/rc-local.service but yours shows /etc/systemd/system/rc-local.service

Is there an rc-local.service in /etc/systemd/system/ ? I do not have such a file in /etc

My output shows 3 lines, Active: Docs: Process: but yours shows 1 line, Active:

[mate2go]

Should I move "rc-local. service" to "/lib/systemd/system"?

[mate2go]

Chattr command not working on my ramdisk "ramfs".