Linux Operation Not Permitted As Root. When I tried, I got ping: socket: Operation not permitted with an add

When I tried, I got ping: socket: Operation not permitted with an additional reason of missing cap_net_raw+p capability or setuid? Ping worked fine as root, so it was a permission problem. Operation not permitted 3 days ago · s tar t-stop-daemon: unable to set gid to 0 (Operation not permitted) 2022-09-09 03:41 weixin_44377636的博客 start-stop-daemon: unable to set gid to 0 (Operation not permitted) Example commands you might see in a real shared-folder setup: # Set group ownership (may require sudo) sudo chgrp developers shared_dir # Allow group members to read/write/traverse chmod 770 shared_dir If you see Operation not permitted or Permission denied here, it usually indicates you need sudo or you are not allowed to assign that group. 81. I'm doing this as root. 3 days ago · s tar t-stop-daemon: unable to set gid to 0 (Operation not permitted) 2022-09-09 03:41 weixin_44377636的博客 start-stop-daemon: unable to set gid to 0 (Operation not permitted) Some time after a fresh install I begin running into 'operation not permitted" and "access denied" errors running sudo or an administrator or root itself. I got a 1Tb portable HD filled with some contents. Nov 14, 2025 · The "Operation not permitted" error in Linux can be caused by a variety of factors, including insufficient file permissions, incorrect user or group ownership, SELinux or AppArmor restrictions, and immutable file attributes. com from my Linux machine. txt 带属性“ i ”，果然是保护了。解决办法用ch 5 days ago · 问题在修改文件权限时遇到如下报错： 12root@docker-manager:~/. 0 fixes the issue. " Dec 30, 2020 · chmod: changing permissions of '/etc/sysctl. does not even have "normal" read and write access to root files). One refused to move. Such as rm -f sort5BtEdh or rm /tmp/sort5BtEdh it returns rm: cannot remove /tmp/sort5BtEdh : Operation not permitted. conf': Operation not permitted 一般我们都知道，Linux下root用户的权限是最大了，难道还有root用户操作不了的文件？ (Linux下UID数值越小的用户，权限越大，可以看到最小值为0，即root用户） END 二、问题修复 Jun 17, 2013 · Not to mention that the default permission when you use ntfs-3g is root:root 777, so if he use ntfs-3g he should have rw access anyway. Make sure all these files are readable by everyone, and chmod a+rX as needed: Nov 22, 2015 · (Notice how it doesn't say "open socket: operation not permitted"; it says "unknown host"). root@keystone-evm:~# iptables -L File created by "touch filename" and by doing "ls -l" no username and group name instead shows a numeric value of 10 digits. 0 Part A: The operation is not permitted because only the owner and root (TBOMK). Server 1: [root@preprod-1 ]# chown root:root /s3mnt/outliers/ May 8, 2023 · Failed to open /dev/mem: Operation not permitted And I tried using od as a test for my code being bad too: od: /dev/mem: Operation not permitted od: /dev/port: Operation not permitted I am also running Kubuntu 22. Instead of the file being deleted, I get an Operation not permitted error. Either have user b do it, or perhaps you will have to bite the bullet and use sudo. It was used in Windows and as always packed with virus. So, using lsof | grep "filename" might give some insights in what process is currently holding your file. If we change to a non-root (standard) user and execute the ping command it fails with error ping: socket: Operation not permitted. As explained here (thanks @slhck): Nov 25, 2020 · I get Operation not permitted for root user on one server but not on the other "identical" server. In other words, only root can give a file to another user. On the contrary: root is mapped to an ordinary user (i. As root, I cannot remove anything under /tmp. It doesn't matter if I run my program from the root shell or as a regular user using sudo. [root@hostname]# chown root:root testfile chown I had this weird error "Operation not permitted" these days and I figured out the solution on my case. For things that might be old user sessions, using kill -HUP would be better than just kill, as it allows things like editors to save a backup of any unsaved work before exiting. root. sh, but note that that will make the file only executable for the root user. May 10, 2022 · The string text for EPERM is "Operation not permitted" and it's what you get when you try to do things as a regular user that need root and can't be granted by file permissions. Dec 19, 2025 · [BUG] Sandbox fails with "bwrap: loopback: Failed RTM_NEWADDR: Operation not permitted" #14719 New issue Open talpah I got into a weird situation. May 3, 2019 · I have this directory drwxrwxrwx 2 root root 4096 May 3 21:06 tmp I'm the user "jenkins", and I try: chmod -R a+rwx tmp/ But I get chmod: changing permissions of `tmp/': Operation not 40 By default the root_squash export option is turned on, therefore NFS does not allow a root user from the client to perform operations as root on the server, instead mapping it to the user/group id specified by anonuid and anongid options (default=65534). Using sudo allows you to execute commands with superuser privileges, thereby granting you the necessary permissions to modify the file. what would cause this, and how do i make it so the root user at least can delete files and folders under /tmp ? also, much is owned by root. checked for this UID in /etc/passwd NO results found. This application runs as a non-root user admin (and for a plethora of reasons, I'd like to keep it that way). The root cause was an improperly compiled instance of sudo. 04 LTS To clarify, I never mmaped /dev/port. How do I make these files open-able? I logged into Ubuntu with guest session account, but the ls command is not permitted even using sudo. It doesn't even seem to care about the supposedly system-wide limit in /proc/sys/fs/file-max # cat /proc/sys/fs/file-max 188897 # ulimit -n 188898 # ulimit -n 188898 I tried to move a few files to a subfolder on OS X. When logged in as the root user we are able to execute the ping command. Oct 22, 2021 · 二、问题背景有时候需要修改文件的权限，但是即使在root下使用chmod命令也不一定能成功更改，有时也会遇到Operation not permitted的问题。一般，Linux下root用户的权限是最大 (Linux下UID数值越小的用户，权限越大，可以看到最小值为0，即root用户） Oct 21, 2024 · Fix Ping Permissions in Debian An upgrade on Debian unstable ("sid") a few days ago left me unable to ping. This happened to my new vm on version rhel8 which used for Jenkins building job on non-root privileges. Jul 30, 2016 · 9 You've created file my_script. Last edited by Mr. Nov 14, 2025 · This blog post will delve into the fundamental concepts behind the Operation not permitted error, explore its usage scenarios, discuss common practices for dealing with it, and provide best practices to avoid or resolve such issues. Sep 9, 2014 · 0 I have same issue; I found that the read operation is blocked by Trellix Endpoint Security for Linux Threat Prevention (mfetpd). rm: ne peut enlever `. Nov 25, 2025 · 问题描述用最高权限rm文件，居然报错Operation not permitted。查看权限也没有问题。可想而知有可能文件被保护了。用命令lsattr检查一下就知道。 [root@linux root]# lsattr a. "dmesg: read kernel buffer failed: Operation not permitted" WTF?! I did it a few more times , yeah like that will fix it! Same OK. mv: cannot move `. root@darkmark:~# pwd /root root@darkmark:~# sudo chown -R darkmark '/home/ In my case, sudo will not execute at all as a non-root user, not even "sudo --help" What troubleshooting tools should I use to find the root cause of this behavior? Edit: I'm going to mark this as resolved. user. But the following error Feb 3, 2020 · Connecting to running docker container as a root still gets Operation not permitted error when trying to apt-get update, yet I can still see sensitive file like /etc May 27, 2022 · I'm unable to delete a file with rm -rf /home/wordpress/testDomain. Sep 25, 2015 · If you have sudo access, you could issue the kill commands either as root or as the p user. I get: mount: /mnt/bitlocker-mount/: mount failed: Operation not permitted. ) May 8, 2023 · Explore kernel permissions, the modprobe command, as well as the "Operation not permitted" error when trying to load a module. ssh# chmod 600 authorized_keys chmod: changing permissions of 'authorized_keys': Operation not permitted 解决方法这里涉及到chattr和lsattr的知识： chattr是用来更改文件文章浏览阅读7. Oct 12, 2021 · Filesystem "Operation not permitted", even as sudo Ask Question Asked 4 years, 2 months ago Modified 4 years, 2 months ago Insufficient Privileges: If you are running Nmap as a non-root user, you may encounter errors related to insufficient privileges, such as "Permission denied" or "Operation not permitted" when attempting to perform certain scans. 80. Thus, use sudo chmod u+x my_script. `test-timestep_embedding` _sometimes_ fails with `ptrace: Operation not permitted. To make the file executable by everyone, use sudo chmod a+x my_script. For root user? Ask Question Asked 11 years, 9 months ago Modified 10 years, 1 month ago Explains how to attach debugging tools to a live MariaDB process on Linux systems without restarting the service. To use chown, a user must have the privileges of the target user. I tried deleting some folders as root. Nov 23, 2025 · 文章浏览阅读7. Sep 17, 2015 · +1, but fails for some files (not just symlinks), even running as root sudo chattr -i returning chattr: Operation not supported while reading flags. mode=force. You must run chown on the NFS server. If the filesystem is separate (e. 0 and 0. Dec 7, 2023 · Troubleshoot 'Operation not permitted' in Linux when changing file ownership with chown. 4 days ago · After upgrading Codex CLI, Linux sandbox initialization breaks in workspace-write / --full-auto on versions 0. I get the following message: chown: changing ownership of `ps': Operation not permitted Dec 7, 2023 · Troubleshoot 'Operation not permitted' in Linux when changing file ownership with chown. Just starting out and have a question? If it is not in the man pages or the how-to's this is the place! Dec 15, 2025 · I am trying to mount a network share and I am getting the error mount. Dec 28, 2004 · Linux - Newbie This Linux forum is for members that are new to Linux. ini': operation not permitted_江南极客的博客-爱代码爱编程 2018-01-12 分类: linux server lsattr chattr remove rm In my case, sudo will not execute at all as a non-root user, not even "sudo --help" What troubleshooting tools should I use to find the root cause of this behavior? Edit: I'm going to mark this as resolved. May 27, 2022 · I'm unable to delete a file with rm -rf /home/wordpress/testDomain. I get the following message: chown: changing ownership of `ps': Operation not permitted Operation not permitted. . Downgrading to 0. txt i a. 04 to v16. Server 1: [root@preprod-1 ]# chown root:root /s3mnt/outliers/ 65 Non-privileged users (not root) cannot chown files to other user names. Elendig (2013-06-20 11:18:26) 18 First, use the chgrp command instead of chown and that will work. It seems to be I have created a serious problem. 84. Aug 17, 2020 · ERROR: could not insert module Operation not permitted Installing a kernel space module with root privileges. Therefore the setfacl calls from within manager fail with setfacl: <filename>: Operation not permitted. How do I make these files open-able? Solved in chown - Operation not permitted: "Non-privileged users (not root) cannot chown files to other user names. Make sure all these files are readable by everyone, and chmod a+rX as needed: Feb 18, 2020 · Attaching to a process on Linux with GDB as a normal user may fail with "ptrace:Operation not permitted". I tried again as root: $ sudo mv file subfolder/ mv: rename file to subfolder/file: Operat chmod: changing permissions of directory Operation not permitted Ask Question Asked 9 years, 1 month ago Modified 4 years, 6 months ago sudo mount -a works fine, but after I reboot the box I get the error 'operation permitted for root only' when trying to access the share through nautilus. bash_history Is the only choice to create a user with the ID 2003, or is there another way around it? Aug 31, 2009 · I try to chown the owner of a file to root, but I can't. g. 0. Jun 28, 2016 · After upgrading from Ubuntu v14. I checked following: filesystem is RW user exists folder is not immutable all commands executed as r Dec 25, 2019 · 当Linux的root用户也遇到“Operation not permitted”时，本指南将带你用`lsattr`快速定位文件锁定原因，并提供`chattr`命令，助你一步解除文件保护，恢复正常操作。 Oct 28, 2016 · 0 Check that the file is not set as immutable, as mentioned here: Changing Ownership: "Operation not permitted" - even as root! Post by Hari Hi all, As I wanted to give 0777 permission for /home/test directory, I want to execute "chmod -R 0777 /home/test", but I mistakenly executed "chmod -R 0777 /". Both directories were created as root, and every operation was done as root too. Part B: The answer is now obvious. Sep 6, 2019 · Run the command as a root or use sudo. By default Linux does not allow attaching to a process which wasn't launched by the debugger (see the Yama security documentation for more details). It said Operation not permitted. Jul 23, 2025 · When we encounter the "chmod: Operation not permitted" error, it typically means you do not have the required permissions to change the file or directory's attributes. sudo dmesg and I get the results I expect. May 12, 2020 · If this happened on your root filesystem, reboot with the kernel option fsck. ` [opencl-clover, gfx1103] (with `gdb` backtrace. bash_profile' to `. Jan 4, 2018 · Running process 'as root' with setuid bit not working as expected - operation not permitted? Asked 8 years ago Modified 8 years ago Viewed 2k times The only detail that catches my attention is that the error is Operation not permitted, as opposed to Permission denied, but I can't make anything more out of this. Anyone has a clue why this is happening? Archived post. This is configurable in /etc/exports together with other export options. Are you seeing the same when running just a vanilla debian image (with no extra options?) are you able to narrow down what option is involved? $ ulimit -n 800 $ ulimit -n 800 $ ulimit -n 900 -bash: ulimit: open files: cannot modify limit: Operation not permitted As root, I can change that limit to whatever I want, up or down. any way. You can change ownership after it gets extracted if you so desire using chown -R <username>:<group> <path> again as a root or using sudo. Aug 26, 2014 · I'm working on something in the transport layer and after i ran our custom policies for securing the policies i'm not able to do traceroute from the linux machine. -rw-r--r-- 1 4294967294 4294967294 0 Mar 4 15:06 testfile Also when customer tried to change ownership by using chown receives "operation not permitted" message. bash_history This file is inside /home/USER/, where USER is the account of the guy who built the machine. Can anyone please help me to solve this problem? Actually, when I run as root (having started a shell by "sudo su -"), "ulimit -r" returns 0 for root while having returned 99 for the regular user. My understanding is, that I could give the admin user the CAP_FOWNER capability to allow it using setfacl on files owned by root. sh with the root user as the owner (because you used sudo), which is why you're not permitted to change the permissions as yourself. 6k次。root权限。在家目录里有个test的文件夹，但是这里想要用chmod命令修改该文件夹的权限，却报错。_chmod operation not permitted Unable to change the permission of /opt/Crowdstrike directory with root user: # chmod 775 /opt/Crowdstrike chmod: changing permissions of 'CrowdStrike': Operation not permitted Aug 8, 2018 · 本文深入探讨Linux中遇到的Operation not permitted错误，特别是当root用户也无法删除或修改文件时的情况。文章揭示了这一问题背后的真正原因——文件的i属性，并提供了详细的解决步骤，包括如何使用chattr命令移除i属性，以及最终如何成功删除顽固文件。 We would like to show you a description here but the site won’t allow us. Operation not permitted". Syntax: sudo chmod [permissions] [filename] Jul 14, 2021 · how can change my folder permissions? I also tried it as root but it did not work and I also cannot change the ownership. I'm fairly new to this; there are configuration files and packages that can restrict even superuser permissions? This is with files that are nominally owned by root wrx permissions. 16 Usually root does not have special permissions on NFS shares. If I run sudo mount -a again it typically resolves the issue. In the case of using chown, for security reasons in most Linux contexts, any ownership change is restricted to the root user even though you are marked as the owner of the file, directory, etc or not. sh. Nov 25, 2020 · I get Operation not permitted for root user on one server but not on the other "identical" server. I already run 'chown' of every dirs that involved to build, but still get "Operation not permitted". Due to this entire file system permission got changed to 0777. linux删除文件出现rm: cannot remove `. I've tried changing options in mount, and using only ro, rw, combinations with these and loop, and it still doesn't let me mount it. I am thinking this test box is already kaflooyed. e. Also tried Feb 26, 2019 · "Operation not permitted" when I tried to change ownership and permissions Ask Question Asked 6 years, 10 months ago Modified 6 years, 10 months ago hi i'm trying to solve an issue I had for the past 2 days so basically whenever I try to launch Instax it says this: tor (22891): operation not permitted any help is appreciated. But why? Any ideas? May 8, 2023 · Explore kernel permissions, the modprobe command, as well as the "Operation not permitted" error when trying to load a module. bash_history': Opération non permise (translated from the French: cannot remove XXX, operation not permitted) I have tried using the following command but this has made no difference: chattr -i . When did this change, I don't remember it in the alpha beta cycleor some how I didn't need it for As root, I cannot remove anything under /tmp. you have a separate /home partition), you can alternatively reboot into recovery mode and run fsck <device> manually. Sudo was looking for libraries in the wrong directory. Learn fixes for sudo, file system, and immutable flag issues. Oct 28, 2016 · 0 Check that the file is not set as immutable, as mentioned here: Changing Ownership: "Operation not permitted" - even as root! Sep 17, 2015 · +1, but fails for some files (not just symlinks), even running as root sudo chattr -i returning chattr: Operation not supported while reading flags. Archived post. 04 chown doesn't seem to work any longer on my server. I have come across the following file, which I need to remove from the new machine but am unable to, even when running as root: -rw------- 1 2003 2003 219 jan 11 14:22 . Aug 31, 2009 · I try to chown the owner of a file to root, but I can't. Nov 22, 2015 · (Notice how it doesn't say "open socket: operation not permitted"; it says "unknown host"). Running on Amazon Linux 1. After some discussion on IRC with several helpful people in #debian-next, I learned two ways of Jun 6, 2023 · "operation not permitted" is odd. There are three ways to workaround this: This 40 By default the root_squash export option is turned on, therefore NFS does not allow a root user from the client to perform operations as root on the server, instead mapping it to the user/group id specified by anonuid and anongid options (default=65534). nfs: mount(2): Operation not permitted On the server (Debian 13) there is an export configured Nov 15, 2022 · UNIX/Linux has a command you can use for knowing if a file is used by a process, lsof. bash_profile. 9w次，点赞20次，收藏64次。本文介绍在Linux系统中，即使是root用户也可能遇到使用chmod命令修改文件权限时出现Operation not permitted错误的情况。文章深入探讨了问题背景，解释了这一现象背后的原因，并提供了详细的解决方案，包括使用chattr命令移除文件的i和a属性，从而允许root用户 When stopping the MicroStrategy Intelligence Server on a CentOS Linux environment, the "Failed to start service Unexpected error occurred. backup-20140916': Operation not permitted Saw this similar question but that's about an NFS mount, this is an ext3 mount: May 8, 2023 · Failed to open /dev/mem: Operation not permitted And I tried using od as a test for my code being bad too: od: /dev/mem: Operation not permitted od: /dev/port: Operation not permitted I am also running Kubuntu 22.

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