Remount as read only is showing busy , how to remount as read only safely?

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When trying remount , mount /path busy always.



mount -o remount,ro /path
mount: /path is busy



Is there any method to remount it as read only safely ?
What is the method to check why it is busy ?
Have tried lsof but shows nothing .




mount




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    up vote
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    down vote

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    When trying remount , mount /path busy always.



    mount -o remount,ro /path
    mount: /path is busy



    Is there any method to remount it as read only safely ?
    What is the method to check why it is busy ?
    Have tried lsof but shows nothing .




    mount




    share|improve this question





















      up vote
      1
      down vote

      favorite
      1









      up vote
      1
      down vote

      favorite
      1






      1





      When trying remount , mount /path busy always.



      mount -o remount,ro /path
      mount: /path is busy



      Is there any method to remount it as read only safely ?
      What is the method to check why it is busy ?
      Have tried lsof but shows nothing .




      mount




      share|improve this question











      When trying remount , mount /path busy always.



      mount -o remount,ro /path
      mount: /path is busy



      Is there any method to remount it as read only safely ?
      What is the method to check why it is busy ?
      Have tried lsof but shows nothing .





      mount





      share|improve this question










      share|improve this question




      share|improve this question









      asked Jun 7 at 10:53









      Amruth A

      787




      787




















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          There isn't really a way to 'safely' force it read-only. Anything that did would either:



          1. Not really be read-only, because there would still be a file opened for write or append on the filesystem

          or:



          1. Crash whatever application has a writable file open on that mount point.

          As far as figuring out what is holding it open, try fuser -m /path. I've found it's significantly more reliable for quickly finding out what is usingg a given mount point.






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            up vote
            1
            down vote



            accepted










            There isn't really a way to 'safely' force it read-only. Anything that did would either:



            1. Not really be read-only, because there would still be a file opened for write or append on the filesystem

            or:



            1. Crash whatever application has a writable file open on that mount point.

            As far as figuring out what is holding it open, try fuser -m /path. I've found it's significantly more reliable for quickly finding out what is usingg a given mount point.






            share|improve this answer

























              up vote
              1
              down vote



              accepted










              There isn't really a way to 'safely' force it read-only. Anything that did would either:



              1. Not really be read-only, because there would still be a file opened for write or append on the filesystem

              or:



              1. Crash whatever application has a writable file open on that mount point.

              As far as figuring out what is holding it open, try fuser -m /path. I've found it's significantly more reliable for quickly finding out what is usingg a given mount point.






              share|improve this answer























                up vote
                1
                down vote



                accepted







                up vote
                1
                down vote



                accepted






                There isn't really a way to 'safely' force it read-only. Anything that did would either:



                1. Not really be read-only, because there would still be a file opened for write or append on the filesystem

                or:



                1. Crash whatever application has a writable file open on that mount point.

                As far as figuring out what is holding it open, try fuser -m /path. I've found it's significantly more reliable for quickly finding out what is usingg a given mount point.






                share|improve this answer













                There isn't really a way to 'safely' force it read-only. Anything that did would either:



                1. Not really be read-only, because there would still be a file opened for write or append on the filesystem

                or:



                1. Crash whatever application has a writable file open on that mount point.

                As far as figuring out what is holding it open, try fuser -m /path. I've found it's significantly more reliable for quickly finding out what is usingg a given mount point.







                share|improve this answer













                share|improve this answer



                share|improve this answer











                answered Jun 7 at 18:56









                Austin Hemmelgarn

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