Sudo exec format error

Fix “Exec format error” When Running Scripts With run-parts Command

When I was trying to run all scripts in a directory using run-parts command, I encountered with an error — «run-parts: failed to exec script.sh: Exec format error». The scripts worked just fine when I directly execute them like «./script.sh» and «sh script.sh». But they didn’t work when I ran them with run-parts command. For those wondering, the run-parts command will run all scripts in a directory. If you got an error like this while running a script, this quick tip will help you to fix «Exec format error» when running scripts with run-parts command in Linux.

Fix «Exec format error» When Running Scripts With run-parts Command

To run all scripts in the Documents folder, I ran:

I got the following error message:

run-parts: failed to exec script.sh: Exec format error

To fix «Exec format error», you need to add a shebang at the start of your scripts so the kernel will know how to run them. For those wondering, a shebang is the character sequence consisting of the characters number sign and exclamation mark (#!) at the beginning of a script. When you add the shebang at the start of a text file, it is interpreted as an executable file.

Most scripts starts with a shebang. Here are some typical shebang examples.

Bourne shell, or a compatible shell:

Bash:

Perl:

Python 2.x:

Python 3.x:

This is what we call a shebang.

Now, let us get back to the topic. Edit your scripts using your favorite editor:

Add the following shebang at the beginning of the script:

Fix «Exec format error» When Running Scripts With run-parts

Now you can be able to run the scripts with run-parts command without any issues using run-parts command.

Update:

As one of our reader Mr.Danesh mentioned in the comment section below, Instead of hard-coding the path of the interpreter, e.g.

This is more portable in case the interpreter is installed in some other (non-default) directory. env is a shell command for Linux and Unix-like operating systems. It is often used by shell scripts to launch the correct interpreter.

You can also use ShellCheck utility to find problems in your shell scripts.

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nodejs not working, exec format error #8151

Comments

Version

Microsoft Windows [Version 10.0.19044.1586]

WSL Version

Kernel Version

Distro Version

Other Software

Repro Steps

Install nodejs from Archlinux repo with pacman -S nodejs , and run node

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Expected Behavior

Actual Behavior

nodejs does not start. exec format error.

Diagnostic Logs

nodejs can start if we manually invoke ld-linux, although it is already the interpreter in the ELF.

$ /lib64/ld-linux-x86-64.so.2 /usr/bin/node Welcome to Node.js v17.7.1. Type «.help» for more information. > wangqr@ocalhost:

$ file /usr/bin/node /usr/bin/node: ELF 64-bit LSB pie executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=10ec67f51a763d04ac6e1fe305ce214fb40eabda, for GNU/Linux 4.4.0, stripped wangqr@ocalhost:

$ readelf -h /usr/bin/node ELF Header: Magic: 7f 45 4c 46 02 01 01 03 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2’s complement, little endian Version: 1 (current) OS/ABI: UNIX — GNU ABI Version: 0 Type: DYN (Position-Independent Executable file) Machine: Advanced Micro Devices X86-64 Version: 0x1 Entry point address: 0x6aa570 Start of program headers: 64 (bytes into file) Start of section headers: 34087608 (bytes into file) Flags: 0x0 Size of this header: 64 (bytes) Size of program headers: 56 (bytes) Number of program headers: 16 Size of section headers: 64 (bytes) Number of section headers: 30 Section header string table index: 29 «>

The text was updated successfully, but these errors were encountered:

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Thread: systemd-resolved.service is not loaded properly: Exec format error.

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systemd-resolved.service is not loaded properly: Exec format error.

I have a headless Ubuntu Server with some DNS trouble. After some troubeshooting to find out why it did not have an internet connection I found that starting systemd-resolved.service fixed the issue.
I didn’t have time to figure out how to start it automatically at boot so I’ve been doing that manually via ssh for now.
This time it won’t start the service;

Some advice on how to troubleshoot would be great!

Re: systemd-resolved.service is not loaded properly: Exec format error.

What do you see in /var/log/syslog? That’s where systemd logs everything.

An «Exec format error» usually means the executable program is somehow bad. Might I suggest reinstalling systemd-resolved?

If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

Re: systemd-resolved.service is not loaded properly: Exec format error.

I tried tailing it but nothing happens. I can see other events, like me logging in to ssh, but nothing about systemd-resolved. «cat /var/log/syslog | grep resolved» gives nothing.

An «Exec format error» usually means the executable program is somehow bad. Might I suggest reinstalling systemd-resolved?

Is it possible to use apt without internet? I am running Linux Mint on another machine. Can I download the files needed there and copy them over to my server?

Re: systemd-resolved.service is not loaded properly: Exec format error.

Ok, so I’ve been tinkering with this a bit and I found a solution.

Being the linux-noob that I am, I might be doing this a bit cumbersome.
I tried to figure out if I could somehow download the packages on another pc and copy them over, but I didn’t find what I needed. I found something called openvpn-systemd-resolved https://packages.ubuntu.com/bionic/o. stemd-resolved, but I’m not sure if it is the same as systemd-resolved. Also, from what I understand I would have to download all dependecies manually to transfer over to the server and install with dpkg, so I tried something else.

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I downloaded the ubuntu server 18.04 LTS image from canonical and installed it in a virtualbox vm.
I could find from «sudo systemctl status systemd-resolved.service» which file was loaded;

After a reboot it worked like charm.
I notice that the file sizes are quite different, the old one is quite small compared to the new one.
Any insight here would be great.

Could I have done this an easier way? Should I have done it differently or is it ok to replace this service-file like I did?

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Fix “Exec format error” When Running Scripts With run-parts Command

When I was trying to run all scripts in a directory using run-parts command, I encountered with an error – “run-parts: failed to exec script.sh: Exec format error”. The scripts worked just fine when I directly execute them like “./script.sh” and “sh script.sh”. But they didn’t work when I ran them with run-parts command. For those wondering, the run-parts command will run all scripts in a directory. If you got an error like this while running a script, this quick tip will help you to fix “Exec format error” when running scripts with run-parts command in Linux.

Fix “Exec format error” When Running Scripts With run-parts Command

To run all scripts in the Documents folder, I ran:

I got the following error message:

To fix “Exec format error”, you need to add a shebang at the start of your scripts so the kernel will know how to run them. For those wondering, a shebang is the character sequence consisting of the characters number sign and exclamation mark (#!) at the beginning of a script. When you add the shebang at the start of a text file, it is interpreted as an executable file.

Most scripts starts with a shebang. Here are some typical shebang examples.

Bourne shell, or a compatible shell:

Bash:

Perl:

Python 2.x:

Python 3.x:

This is what we call a shebang.

Now, let us get back to the topic. Edit your scripts using your favorite editor:

Add the following shebang at the beginning of the script:

Now you can be able to run the scripts with run-parts command without any issues using run-parts command.

You can also use ShellCheck utility to find problems in your shell scripts.

Источник

exec format error when building or restarting container after docker server restart #7527

Comments

On a fresh install of docker on Ubuntu 14.04 LTS (GNU/Linux 3.13.0-29-generic x86_64) I use a remote docker client to build/start container on another machine (same ubuntu version same docker version.

First I get this error while building:

I always get the same message when trying to re-build a dockerfile even with —no-cache=true

If I restart the docker server, some of the running container are still running and the one not running throw this error if I try to restart them.

The text was updated successfully, but these errors were encountered:

If I stop the docker server and try to delete the docker root file I get this

Are you sure you are not missing a chmod +x on any of the binaries that are you trying to exec?

It fails on cd /tmp (I tried to decompose the RUN command) and it also failed on ln -s . on another server.

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Those dockerfiles already runs on a couple of different configurations like

  • ubuntu 12.04 (paravirtual) on ec2 with docker 1.1.0
  • ubuntu 14.04 (hvm) on ec2 with docker 1.1.2
  • boot2docker on development box with docker 1.0.1
  • ubuntu 14.04 (paravirtual) on ec2 with docker 1.1.2

I also got this error

With those errors:

if docker is using devicemapper on ubuntu it looks like you have a non standard ubuntu kernel because they should be compiled with AUFS support.

Can you run check-config.sh on your system having issues and paste the output?

could it be related with #4036 ?

Are you telling docker to use devicemapper over AUFS?

Maybe this can this tell docker to use devicemapper over AUFS? /mnt is a ext3 partition from what I see.

DOCKER_OPTS=»-g=/mnt/docker -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock»

humm, I’m guessing the other systems that you tested on did not use the -g option?

The system on 12.04 use the -g option but not the other one on 14.04. So the 12.04 use AUFS (with -g option) and 14.04 seems to use devicemapper by default (-g or not)!

Does the 12.04 system have an ext3 formatted partition that is being used?

Yes /mnt type ext3 like the other one

But I think that I updated it from 0.8 or 0.9, maybe back then it wasn’t default to devicemapper.

I deleted my docker directory (/mnt/docker) install the kernel extra

Now docker use AUFS by default and no more weird behavior. In addition, it’s way faster! I don’t know what’s the plan for devicemapper, but it seems that it still need a bit of love!

@synhaptein: one interesting thing to try would be to compare the checksum (md5 or sha1) of the binary you are executing (dnsmasq?) from a failing container versus a working one. If they are different, this may be a duplicate of #7229

i have same error with restarting a container that runned befor !
frank@h1: $ docker start proxy
Error response from daemon: Cannot start container proxy: exec format error
2014/09/23 07:33:15 Error: failed to start one or more containers
frank@h1: $ docker-current start proxy
Error response from daemon: Cannot start container proxy: exec format error
2014/09/23 07:33:23 Error: failed to start one or more containers
frank@h1:

Had the same thing. It turned out we had built and committed our repos on CoreOS/btrfs locally and downloaded them on Trusty with devicemapper. Just crapped out.

Downloaded a base ubuntu image, installed docker, rebuilt the exact same dockerfile and filesystem, recommited and it worked perfectly on our servers

Scratch that, any time I changed the cmd using «docker run» this happened — even after recompiling on the same OS/driver pair. Had to change to AUFS the same way @synhaptein did.

closing as this seems to be resolved but let me know otherwise

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