Filesystem mounted as root but owned by user. Why?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
8
down vote

favorite












I'm mounting a filesystem as root and I don't understand why it is not owned by root but by an unprivileged user.



Here's fstab:



cat /etc/fstab
[...]
/dev/sdb /mnt/projects ext4 defaults 0 2


And here's what happens when mounting:



ls -al /mnt/projects/ 
total 8
drwxr-xr-x 2 root root 4096 mai 25 17:55 .
drwxr-xr-x 3 root root 4096 mai 25 17:55 ..

mount /dev/sdb

ls -al /mnt/projects/ 
total 24
drwx------ 3 jerome jerome 4096 mai 25 17:52 .
drwxr-xr-x 3 root root 4096 mai 25 17:55 ..
drwx------ 2 root root 16384 mai 25 17:52 lost+found


I'm not using sudo. I switch to root user with the su command.



The user that gains ownership is my normal user, the first declared when installing the system (uid: 1000).



The mount point is owned by root. I don't think that matters anyway.



My normal user doesn't have the permissions to mount the filesystem here himself.




mount ownership




share|improve this question























    up vote
    8
    down vote

    favorite












    I'm mounting a filesystem as root and I don't understand why it is not owned by root but by an unprivileged user.



    Here's fstab:



    cat /etc/fstab
    [...]
    /dev/sdb /mnt/projects ext4 defaults 0 2


    And here's what happens when mounting:



    ls -al /mnt/projects/ 
    total 8
    drwxr-xr-x 2 root root 4096 mai 25 17:55 .
    drwxr-xr-x 3 root root 4096 mai 25 17:55 ..

    mount /dev/sdb

    ls -al /mnt/projects/ 
    total 24
    drwx------ 3 jerome jerome 4096 mai 25 17:52 .
    drwxr-xr-x 3 root root 4096 mai 25 17:55 ..
    drwx------ 2 root root 16384 mai 25 17:52 lost+found


    I'm not using sudo. I switch to root user with the su command.



    The user that gains ownership is my normal user, the first declared when installing the system (uid: 1000).



    The mount point is owned by root. I don't think that matters anyway.



    My normal user doesn't have the permissions to mount the filesystem here himself.




    mount ownership




    share|improve this question





















      up vote
      8
      down vote

      favorite









      up vote
      8
      down vote

      favorite











      I'm mounting a filesystem as root and I don't understand why it is not owned by root but by an unprivileged user.



      Here's fstab:



      cat /etc/fstab
      [...]
      /dev/sdb /mnt/projects ext4 defaults 0 2


      And here's what happens when mounting:



      ls -al /mnt/projects/ 
      total 8
      drwxr-xr-x 2 root root 4096 mai 25 17:55 .
      drwxr-xr-x 3 root root 4096 mai 25 17:55 ..

      mount /dev/sdb

      ls -al /mnt/projects/ 
      total 24
      drwx------ 3 jerome jerome 4096 mai 25 17:52 .
      drwxr-xr-x 3 root root 4096 mai 25 17:55 ..
      drwx------ 2 root root 16384 mai 25 17:52 lost+found


      I'm not using sudo. I switch to root user with the su command.



      The user that gains ownership is my normal user, the first declared when installing the system (uid: 1000).



      The mount point is owned by root. I don't think that matters anyway.



      My normal user doesn't have the permissions to mount the filesystem here himself.




      mount ownership




      share|improve this question











      I'm mounting a filesystem as root and I don't understand why it is not owned by root but by an unprivileged user.



      Here's fstab:



      cat /etc/fstab
      [...]
      /dev/sdb /mnt/projects ext4 defaults 0 2


      And here's what happens when mounting:



      ls -al /mnt/projects/ 
      total 8
      drwxr-xr-x 2 root root 4096 mai 25 17:55 .
      drwxr-xr-x 3 root root 4096 mai 25 17:55 ..

      mount /dev/sdb

      ls -al /mnt/projects/ 
      total 24
      drwx------ 3 jerome jerome 4096 mai 25 17:52 .
      drwxr-xr-x 3 root root 4096 mai 25 17:55 ..
      drwx------ 2 root root 16384 mai 25 17:52 lost+found


      I'm not using sudo. I switch to root user with the su command.



      The user that gains ownership is my normal user, the first declared when installing the system (uid: 1000).



      The mount point is owned by root. I don't think that matters anyway.



      My normal user doesn't have the permissions to mount the filesystem here himself.





      mount ownership





      share|improve this question










      share|improve this question




      share|improve this question









      asked May 28 at 7:31









      Jérôme

      7812728




      7812728




















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          22
          down vote



          accepted










          This means that the file system being mounted contains a root directory owned by user 1000 and group 1000. The ownership of a mounted file system’s root directory becomes the ownership of the mount point.






          share|improve this answer

















          • 1




            I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
            – Jérôme
            May 28 at 8:22






          • 3




            @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
            – kasperd
            May 28 at 10:21










          • OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
            – Jérôme
            May 28 at 10:29










          Your Answer







          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );








           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f446423%2ffilesystem-mounted-as-root-but-owned-by-user-why%23new-answer', 'question_page');

          );

          Post as a guest

















          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          22
          down vote



          accepted










          This means that the file system being mounted contains a root directory owned by user 1000 and group 1000. The ownership of a mounted file system’s root directory becomes the ownership of the mount point.






          share|improve this answer

















          • 1




            I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
            – Jérôme
            May 28 at 8:22






          • 3




            @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
            – kasperd
            May 28 at 10:21










          • OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
            – Jérôme
            May 28 at 10:29














          up vote
          22
          down vote



          accepted










          This means that the file system being mounted contains a root directory owned by user 1000 and group 1000. The ownership of a mounted file system’s root directory becomes the ownership of the mount point.






          share|improve this answer

















          • 1




            I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
            – Jérôme
            May 28 at 8:22






          • 3




            @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
            – kasperd
            May 28 at 10:21










          • OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
            – Jérôme
            May 28 at 10:29












          up vote
          22
          down vote



          accepted







          up vote
          22
          down vote



          accepted






          This means that the file system being mounted contains a root directory owned by user 1000 and group 1000. The ownership of a mounted file system’s root directory becomes the ownership of the mount point.






          share|improve this answer













          This means that the file system being mounted contains a root directory owned by user 1000 and group 1000. The ownership of a mounted file system’s root directory becomes the ownership of the mount point.







          share|improve this answer













          share|improve this answer



          share|improve this answer











          answered May 28 at 7:45









          Stephen Kitt

          140k22302363




          140k22302363







          • 1




            I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
            – Jérôme
            May 28 at 8:22






          • 3




            @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
            – kasperd
            May 28 at 10:21










          • OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
            – Jérôme
            May 28 at 10:29












          • 1




            I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
            – Jérôme
            May 28 at 8:22






          • 3




            @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
            – kasperd
            May 28 at 10:21










          • OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
            – Jérôme
            May 28 at 10:29







          1




          1




          I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
          – Jérôme
          May 28 at 8:22




          I suppose this is because I created the partition using gnome-disks as unprivileged user. But there is nothing in that GUI informing me about it.
          – Jérôme
          May 28 at 8:22




          3




          3




          @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
          – kasperd
          May 28 at 10:21




          @Jérôme The owner of the root of a file system can be changed with chown just like any other directory.
          – kasperd
          May 28 at 10:21












          OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
          – Jérôme
          May 28 at 10:29




          OK @kasperd. I was just surprised it was jerome and not root in the first place since I thought I did everything as root.
          – Jérôme
          May 28 at 10:29












           

          draft saved


          draft discarded


























           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f446423%2ffilesystem-mounted-as-root-but-owned-by-user-why%23new-answer', 'question_page');

          );

          Post as a guest
































































          -

          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
          Read more

          Displaying single band from multi-band raster using QGIS

          Image
          Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
          Read more

          How many registers does an x86_64 CPU actually have?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
          Read more