# 4 03-06-2008 brendan76 UNIX is a registered trademark of The Open Group. Connect and share knowledge within a single location that is structured and easy to search. Any help would be appreciated. this works: when i type mount nfs as user in Konsole, the nfs share is mounted. Where is it documented? As @9000 mentioned, see what verbose mode says by adding a -v to your mount command. Was the ZX Spectrum used for number crunching? Mount works only as Root. Ubuntu: The error: \"mount: only root can do that\" while mounting a partition (3 Solutions!)Helpful? Thus, given a line /dev/cdrom /cd iso9660 ro,user,noauto,unhide any user can mount the iso9660 filesystem found on his CDROM using the command mount /dev/cdrom or mount /cd How to set a newcommand to be incompressible by justification? If you still can't mount the home filesystem, you may need to contact your Linux . Ubuntu: Fix error - mount: only root can do thatHelpful? The way the client is configured controls what non-root users can and cannot do. But the suid bit is there, which means if you can get the mount executable to allow it (that's where the user/users options come in), then any user can mount an FS. So I'm trialling it, but having issues mounting windows shares. Here is what happens with your change to mount priviledges: -rwsr-xr-x 1 root root 77488 2003-10-02 13:18 /bin/mount, -rwsr-sr-x 1 root root 77488 2003-10-02 13:18 /bin/mount. mount: only root can do that --cdrom,root [OK_008@CentOS4 ~]$ -- [root@CentOS4 /]# mount -t auto /dev/cdrom /mnt/cdrom mount: mount point /mnt/cdrom does not exist--/mnt/cdrom . (default 1s) --daemon Run mount as a daemon (background mode). Code: $ ls -l /bin/mount -rwsr-xr-x 1 root root 62268 Oct 3 07:39 /bin/mount* (The 's' in the first block is the 'suid' bit) Cheers! However, when fstab contains the user option on a line, anybody can mount the corresponding filesystem. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com. Further info: (these are with the drive mounted using sudo) ----- mount: only root can do that Hello, I've got problems mounting an external USB HDD on Ubuntu 10.10. I can sudo, but if I'm not in the sudoers file, I'm not allowed mount commands: bash-4.2$ sudo mount -o . Thanks for contributing an answer to Unix & Linux Stack Exchange! But the big reason is that it can potentially allow a user to produce files that they could not ordinarily produce. [ Log in to get rid of this advertisement] I am working from RHCE Study Guide 5th Edition by Michael Jang. I can't mount eg. Effect of coal and natural gas burning on particulate matter pollution, Books that explain fundamental chess concepts, MOSFET is getting very hot at high frequency PWM. Anybody know what I can do to fix this problem? Only root can browse files from NFS share. could someone tell me how to allow a regular debian user to mount a cdrom? The propagation flags are applied by additional mount (2) system calls when the preceding mount operations were successful. Usage: udisks --mount /dev/<sdxX> ## to mount udisks --unmount /dev/<sdxX> ## to unmount But I can write it in windows. For example, I'm trying to do: $ mount -t iso9660 -o ro,loop W2Ksp3.iso temp2 It would help to know whether it's a permission problem, and whether it's with . Why could mount.cifs mount an empty folder? here's my fstab entries for the floppy and cdrom. docker run -ti --rm --privileged --userns=host ubuntu:16.04 mount foo bar; Describe the results you received: This fails with mount: only root can do that (effective UID is 427680) Describe the results you expected: I expected the mount command to work since I disabled user namespaces and I'm running in a privileged container. Question: "Mount: Only root can do that". I have some questions: 1, I successfully mounted my usb drive with "sudo mount /dev/sdb1 /mnt", but I can't wirte, It says "read-only file system". Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. If this work. With this command you should be able to verify that you can mount the share. I suspect that it should look something like this: /dev/sda1 /media/sda1 auto noauto,users 0 0. In this way it works as expected. Debian Bug report logs -. Check the 'sticky bit' (suid) on that program, and see if it's set. Normally, only the superuser can mount filesystems. mount /dev/sda1 Another possible problem is that the mount command may be set to run only for root. However if you think your question is a bit stupid, then this is the right place for you to post it. I have RedHat 6.0. To create it, run: sudo mkdir /media/sharename You can mount shares anywhere; they do not have to be mounted in /media. I'm using SuSE 9.0 and cannot mount a USB Flash Memory (thumb drive) from a console using using the command: mount -t auto /dev/sda1 /media/sda1. How does the Chameleon's Arcane/Divine focus interact with magic item crafting? Yesterday I was able to mount my smb share with the following command: I don't know why it is not working anymore. Do non-Segwit nodes reject Segwit transactions with invalid signature? I have setup NFS file services on my ds213j I can't browse the NFS directories properly using my regular desktop user. How did muzzle-loaded rifled artillery solve the problems of the hand-held rifle? $ mount /mnt/UBUN mount: only root can mount LABEL=UBUN on /mnt/UBUN $ sudo mount /mnt/UBUN. So: sudo mount -t vboxf . Please support me on Patreon: https://www.patreon.com/ro. This command works fine as a root user. --allow-root Allow access to root user. I'm finding google entries about editing fstab? The message "mount: only root can do that" comes from the mount command itself: it allows non-root users to only mount and unmount those filesystems that have the special mount option "user" in the /etc/fstab file. /dev/sda1 /media/sda1 auto sync,noauto,user,exec 0 0 #HOTPLUG B3Fu.p1a3eP+6Hk5. Host is fedora 14, guest is fedora 15, version is 4.0.12 Inside guest: [don@number11 ~]$ mkdir /tmp/xxx [don@number11 ~]$ mount -t vboxsf xxx /tmp/xxx mount: only root can do that [don@number11 ~]$ sudo mount -t vboxsf xxx /tmp/xxx /sbin/mount.vboxsf: Could not add an entry to the . Package: mount Version: 2.11n-4 Severity: normal When the mount command issues the message "mount: only root can do that," it doesn't give any further indication about what the problem is. When I'm a User my group is not root so that may still be the problem. Here are the contents of my fstab: # /etc/fstab: static file system information. On the NFS client host (e.g., 10.1.1.20 ), update /etc/fstab as root. Normally, only the superuser can mount filesystems. Regards, -Artur. 34 views, 0 likes, 0 loves, 0 comments, 0 shares, Facebook Watch Videos from : 2022/11/27 10:30 1 !. All my directories are owned by me (not root) with full privledges and I've got the owner set to 'user' in /etc/fstab. I did that and it still says mount: only root can do that. mount: only root can do that In order to allow a regular user without root privilege to mount a remote home directory via NFS, you can do the following. > Either mount is setuid and then all users can mount the floppy, or it is > not setuid and then only root can mount the floppy. Question: do I need to set the suid bit for mount? But users can't mount LVM snapshots. Also check your system logs if you haven't already, and dmesg, and perhaps run an strace on the command for deeper troubleshooting. This will by-pass all the initialization scripts under /etc/ so that you get access to the shell. Make sure all the necessary settings are in place. Unfortunately, in this way I get " mount: only root can use "--types" option ". Then you should be able to mount it simply with the command: Another possible problem is that the mount command may be set to run only for root. I assume that the user requiring NFS mount is alice. The mount command may still be the problem tho. Browse other questions tagged. I can workaround this by first starting rpc-statd.service manually, and then running mount-nfs. The idea of the custom sudoers rule is that users can sudo this mount, without needing any other sudo permissions. Output of docker . If I mount with sudo like this: mount /dev/sdb1 /media/Elements everything works, but if I mount without using the terminal i get this: "Only Root can do that", Sudo not working. I have tried this line in fstab and SuSE always adds back the original line anyway on boot-up when the thumb drive is plugged in. With this command you should be able to verify that you can mount the share. For instance, if a user has the ability to mount filesystems, they could potentially mount a filesystem containing set-user-ID executables owned by root. 2, After I umounted the usb drive the led of it still on, but not blinking. Are there breakers which can be triggered by an external signal and have to be reset by hand? You have to fully specify mount options in fstab when you want to use it as non-root user. For instance, on my client, only root can use "-o" on mounts: bash-4.2$ mount -o nfsvers=3 demo:/home /mnt/home mount: only root can use "--options" option . --attr-timeout duration Time for which file/directory attributes are cached. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Is there any reason on passenger airliners not to have a physical lock between throttles? This allows mounting of partitions (or files) in the /media/<drive_identifier> directory. This was working fine before the upgrade. was still reporting the usual "only root can mount [. You could use a wrapper script /usr/local/bin/mount to hide the use of sudo if necessary. What does your entry for this device in /etc/fstab look like? How long does it take to fill up the tank? Making statements based on opinion; back them up with references or personal experience. You are responsible for your own actions. (UBUN = ubuntu OS). You will be able to leave a comment after signing in, Esselbach Internet Solutions Of course you need to replace: (hostname) by the share server hostname. If this is your first visit, be sure to I get the impression from forums that everyone has this problem. # # Use 'vol_id --uuid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. Linux, the Ultimate sollution for Users of Microsoft Windows. But I can't get 2 and 3 at the same time. But I don't see there solutions that work for me. Trademarks are property of their respective owners. It's working great; all except that only Root can write to the mount. It is hard method, I know As I don't see any proper reason for your error, I would propose a slightly different syntax. On the NFS server host (e.g., 10.1.1.10), enable export for the client as root. Alternatively, assign the contents of the /tools and /cross-tools directories to user root by running the following commands [/snip] It says "alternatively" leading me to think its a local security issue only and not something that must be done. The ONLY user that can make the system call to mount (or umount) a filesystem is root (this is enforced by the kernel), whether or not you have "user" or "users" in the fstab file. 3. Ready to optimize your JavaScript with Rust? #190267. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. In the above, "user" allows a non-root user to mount, and "noauto" means no automatic mount on boot. Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. mount: Only root can do that. I know, there are a lot of solutions for this problem on the WEB but none of those is working. The method can be used with other Android devices. KDE recognized the nfs share entry in fstab and offered 192.168.2.4:/home as share and /home/rinse/nfs as mount point. Something like: mount Computer1:/folder1/folder2 /home/user/folder But they cannot. Try unmounting the share and remounting it with uid only: Of course you need to replace: If this work. To learn more, see our tips on writing great answers. rkircher, June 8, 2005 in Everything Linux. I've got the mount points set up to allow users in . Only filesystems that are natively supported in the kernel can be mounted by wsl --mount. UNIX - mount: only root can do thatHelpful? Ubuntu: The error: "mount: only root can do that" while mounting a partition (3 Solutions!)Helpful? Thus, given a line /dev/cdrom. Dirty method - add suid bits to mount/umount command and try to manage access using groups. 4 That's simply because the underlying system call (see 'man 2 mount') requires CAP_SYS_ADMIN capability no matter what the mount options are. After mounting: Code: Select all. Mounting shares to Mint VM works successfully. This means that it's not possible to use installed filesystem drivers (such as ntfs-3g for example) by calling wsl --mount. Help us identify new roles for community members. /dev/fd0 as an ordinary user, only as Root. TechnologyAdvice does not include all companies or all types of products available in the marketplace. Does a 120cc engine burn 120cc of fuel a minute? To set mount to run as user type ( as root): chmod +s /bin/mount chmod +s /bin/umount Then it should work as user. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Is it appropriate to ignore emails from a student asking obvious questions? (You may want to read this to learn more.) You can configure sudo for it as well. You are responsible for your own actions. You can get access to the rootfs prompt by adding to the kernel argument the parameter "init=/bin/sh". Powered by Invision Community. The scenario exclude the use of smb/cifs share mounted on Proxmox host that will link to LXC as cifs/smb share are provided by a VM hosted on proxmox. Ran ./configure and make. My /etc/fstab is OK, and /bin/mount 's permissions are: . For long and complicated questions prefer the other forums within the . This compensation may impact how and where products appear on this site including, for example, the order in which they appear. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? (Obviously this should be run in the same environment as you are trying to mount in, so you should make sure it is the root shell that is expanding, Why is the path different between the error message and the mount command? $ sudo vi /etc/fstab In short, Calibre is installed in Debian 6.0.0 chroot environment in Android 2.1. rclone mount remote:path /path/to/mountpoint [flags] Flags: --allow-non-empty Allow mounting over a non-empty directory. First I will create a new directory as root (to be sure root can create it) and then mount the share with slightly different options. However, mount requires root unless it's defined in /etc/fstab . I installed Calibre on my Nook Touch to fetch news and serve contents to reader programs in my Nook Touch. Filesystems not directly supported by the kernel can be mounted via a --bare attach and then invoking the relevant FUSE driver. However, when fstab contains the user option on a line, anybody can mount the corresponding system. At this point, mount /mnt/<share>. } and here's an example command i'm using to try to mount along with it's } output: } } kevans@kevans:~$ mount -t auto /dev/hdc /media/cdrom0 } mount: only root can do that mount /media/cdrom0 You see, only root is allowed to give extra options or specify what is being mounted to the given mount point. odd that, you can create the cdrom device with kde and mount it, but the user can't use console mount commands to mount the same device. Code: Select all. mount: only root can use "--options" option as a result. There are a few things you can try to fix the problem. Code: Select all # /etc/fstab: static file system information. I have removed the uid and gid options just to remove some "noise". If the problem persists, try running a filesystem checker to see if the home filesystem is corrupted. Linux User #181509 Here are the commands (they should all succeed): The mount command should ask you for your Samba user Ben password. Is this an at-all realistic configuration for a DHC-2 Beaver? Yes, this is the correct behavior of the mount command. Try unmounting the share and remounting it with uid only: If this is working, add the gid, then add the rw and then finally add the password option (step by step). (hostname) by the share server hostname. Most people usually use this option for their cdrom and floppy drives so that all users can mount/umount them. First, check the configuration of the home filesystem. Are defenders behind an arrow slit attackable? I use "super" for something similar for my ZIP-drive. Creating the Mount Point for the Share If you mount the share at /media/sharename, that directory must first exist. Please stick to easy to-the-point questions that you feel people can answer fast. Since util-linux 2.23 the mount command can be used to do more propagation (topology) changes by one mount (8) call and do it also together with other mount operations. The mount usage for standard users is very restricted (because sbit) and they can use the mount command only if there is mount point definition in the fstab file -- things like -t or -o are forbidden. you can add "user" to the mount options in your /etc/fstab file. (Maybe from system update). "Only root can mount" error - but I am root. (I'm thinking I shouldn't have to). How do I change the last 'x' to 's' for the world? User NFS mounts - "mount: only root can do that". SAMBA Specified Network Name no Longer Available, archlinux netboot diskless node/system, systemd on NFS (v4) fails, rpc.idmapd, Linux clients can't login on samba share while windows and mac can (active directory env), Cifs share on Windows host disconnects, but can still be reached using smblient, Kubuntu 20.04.4 LTS cannot mount domain samba shares (either from terminal or fstab). So, I am trying to allow users to mount network shared files to their home directories to have access to them. mount: only root can mount /dev/sdd1 on /media/disk when I try to mount from the command line I get: $ mount /dev/sdd1 /media/disk mount: only root can do that I have to use sudo to mount it. A backup script that runs as root can mount the snapshot, back up the snapshot, then remove the snapshot. Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks & praise to God, and. The mount/umountprograms must be run as root (or suid as root). Community Help: Check the Help Files, then come here to ask! The default is to not allow users to mount things, as it is a . The cifs/smb shares won't be available before OpenMediavault VM is up and running, making Proxmox mounts fail. On the NFS client host (e.g., 10.1.1.20), update /etc/fstab as root. check out the. Lab 1 for Chapter 6 says that I should be able to mount a remote NFS share as an ordinary user under their home directory. mount:only root can do that root root linux su root Which works, but thats just silly. Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks & praise to God, and with thanks . In order to allow a regular user to mount NFS share, you can do the following. ]" blah blah, regardless of what I put in the -o flag. Disclaimer: All information is provided \"AS IS\" without warranty of any kind. | Content (except music \u0026 images) licensed under cc by-sa 3.0 | Music: https://www.bensound.com/royalty-free-music | Images: https://stocksnap.io/license \u0026 others | With thanks to user Eliah Kagan (https://askubuntu.com/users/22949), user bashboy (https://askubuntu.com/users/179110), and the Stack Exchange Network (http://askubuntu.com/questions/326241). Trademarks are property of their respective owners. However, this line in fstab does NOT work as a user, but does works as root: /dev/sda1 /media/sda1 auto rw,noauto,user 0 0. Then i created an icon in Folderview, using RMB Create new Link to device NFS. --allow-other Allow access to other users. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com. The best answers are voted up and rise to the top, Not the answer you're looking for? 4. That could then lead the user being able to escalate their privileges to root. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, @BenD - In which case you are not effectively running as root. rkircher stranger Members 0 3 posts Posted June 9, 2005 Thanks taeuler, but I still cannot mount as a User, it only mounts as root. Allowing a user to perform mount calls would probably be rather tricky regarding security. Ubuntu: Fix error - mount: only root can do thatHelpful? I've also tried to mount it with su -, and Smbclient is working. If you want to allow certain mount operations you can use a tool like sudo by writing appropriate rules for it. If it does not work with the hostname, try again but use the IP address instead; (WORKGROUP) by your workgroup or domain. In effect, the non-root users can only run mount operations that have been pre-approved by root. All users don't have read access to all of the files that constitute a complete backup set. Why is apparent power not measured in watts? | Content (except music \u0026 images) licensed under cc by-sa 3.0 | Music: https://www.bensound.com/royalty-free-music | Images: https://stocksnap.io/license \u0026 others | With thanks to user Takkat (https://askubuntu.com/users/3940), user Policemata Booster (https://askubuntu.com/users/194632), user Naveen Kumar (https://askubuntu.com/users/227555), user Maythux (https://askubuntu.com/users/150504), user kiri (https://askubuntu.com/users/176889), and the Stack Exchange Network (http://askubuntu.com/questions/398457). Advertiser Disclosure: I've tried a few different things with fstab, no go. I would have to look further why you cannot mount a windows share as a normal user - some systems allow you to do this, but the following should work: Add the UID of the user when mounting the share as root, for example: # id hypadmin uid=1003 (hyadmin) gid=1003 (hyadmin) groups=1003 (hyadmin) Thanks in advance Lenwolf 22-Apr-2015, 03:49 #2 hcvv Global Moderator Join Date Jun 2008 Location Netherlands Posts 31,028 Re: Allow user to perform one root comand without password request Originally Posted by lenwolf Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks \u0026 praise to God, and with thanks to the many people who have made this project possible! Mount privileges for users home directories. However, I need to sudo systemctl, and I want to avoid this because of the user mount option in fstab. Users can't access certain backup directories/devices. Disclaimer: All information is provided \"AS IS\" without warranty of any kind. drwxr-xr-x 25 root root 4096 Dec 20 11:09 UBUN $ $ ls /mnt/UBUN a dev initrd.img.old lost+found proc snap usr bin etc lib media root srv var. Does the collective noun "parliament of owls" originate in "parliament of fowls"? Linux is a registered trademark of Linus Torvalds. To run a command as root, use sudo command. mount: only root can do that. One is. jmr_071769 Wed, 01 Jun 2005 06:25:57 -0700. howdy everyone. If it does not work with the hostname, try again but use the IP address instead; Asking for help, clarification, or responding to other answers. Penrose diagram of hypothetical astrophysical white hole. If you can define earlier which resources you want to mount/unmount using your application it can be added to /etc/fstab with user option (allow a user to mount). Below is my fstab so far, and you can see the mountpoints. To set mount to run as user type( as root): Thanks taeuler, but I still cannot mount as a User, it only mounts as root. Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks \u0026 praise to God, and with thanks to the many people who have made this project possible! By So you can identify which of the options is not understood. The. I can mount the share just fine but my regular desktop user can't even browse the mounted directory even though I'm mounting the share on a directory under /home/user. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. It only takes a minute to sign up. Mounting encrypted volumes fails, "only root can do that". Set the suid bit on the resulting mount.cifs file, and copied to /sbin and /usr/sbin (backing up the originals first!!) In case you want to mount a partition as a non-administrative user without the sudo command you could also do so with udisks. What's the \synctex primitive? $ ls -l /mnt . rev2022.12.9.43105. /dev/hdb /mnt/cdrom msdos user,noauto 1 2 /dev/fd0 /mnt/floppy msdos user,noauto 1 2 . There are no such things as "stupid" questions. Package: libpam-mount ; Maintainer for libpam-mount is Jochen Sprickerhof <jspricke@debian.org>; Source for libpam-mount is src:libpam-mount ( PTS, buildd, popcon ). 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