Unable to edit auto_master under macOS Mojave












1















I'm running macOS since several years and I have an auto_master file that contains my mounts config.



On a new Macbook, I cannot edit this file which is in the /etc folder and I have the following error: "auto_master" E212: Can't open file for writing. Note that I had already an auto_master file that I have deleted I don't know how (I had the same error message when trying to edit it) and that I can create files in the /etc folder.



Any idea how I can fix this issue?



Note: The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.






osx automounting etc







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  • I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

    – radar
    13 hours ago













  • Three first tests give No such file or directory. The last one gives 1.

    – radar
    13 hours ago






  • 1





    Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

    – radar
    13 hours ago













  • Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

    – radar
    13 hours ago
















1















I'm running macOS since several years and I have an auto_master file that contains my mounts config.



On a new Macbook, I cannot edit this file which is in the /etc folder and I have the following error: "auto_master" E212: Can't open file for writing. Note that I had already an auto_master file that I have deleted I don't know how (I had the same error message when trying to edit it) and that I can create files in the /etc folder.



Any idea how I can fix this issue?



Note: The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.






osx automounting etc







share|improve this question









New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

    – radar
    13 hours ago













  • Three first tests give No such file or directory. The last one gives 1.

    – radar
    13 hours ago






  • 1





    Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

    – radar
    13 hours ago













  • Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

    – radar
    13 hours ago














1












1








1


0






I'm running macOS since several years and I have an auto_master file that contains my mounts config.



On a new Macbook, I cannot edit this file which is in the /etc folder and I have the following error: "auto_master" E212: Can't open file for writing. Note that I had already an auto_master file that I have deleted I don't know how (I had the same error message when trying to edit it) and that I can create files in the /etc folder.



Any idea how I can fix this issue?



Note: The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.






osx automounting etc







share|improve this question









New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I'm running macOS since several years and I have an auto_master file that contains my mounts config.



On a new Macbook, I cannot edit this file which is in the /etc folder and I have the following error: "auto_master" E212: Can't open file for writing. Note that I had already an auto_master file that I have deleted I don't know how (I had the same error message when trying to edit it) and that I can create files in the /etc folder.



Any idea how I can fix this issue?



Note: The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.






osx automounting etc




osx automounting etc






share|improve this question









New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 13 hours ago









Pierre.Vriens

97651015




97651015






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asked 14 hours ago









radarradar

163




163




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New contributor





radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

    – radar
    13 hours ago













  • Three first tests give No such file or directory. The last one gives 1.

    – radar
    13 hours ago






  • 1





    Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

    – radar
    13 hours ago













  • Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

    – radar
    13 hours ago



















  • I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

    – radar
    13 hours ago













  • Three first tests give No such file or directory. The last one gives 1.

    – radar
    13 hours ago






  • 1





    Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

    – radar
    13 hours ago













  • Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

    – radar
    13 hours ago

















I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

– radar
13 hours ago







I should have mentioned that. The error I have happens when I run sudo vim /etc/auto_master then I try to write the file. sudo touch /etc/test_file and sudo rm /etc/test_file work fine.

– radar
13 hours ago















Three first tests give No such file or directory. The last one gives 1.

– radar
13 hours ago





Three first tests give No such file or directory. The last one gives 1.

– radar
13 hours ago




1




1





Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

– radar
13 hours ago







Note that I have an auto_master~ file and ls -lO command on it gives: -rw-r--r-- 1 root wheel compressed 194 6 mar 2018 /etc/auto_master~

– radar
13 hours ago















Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

– radar
13 hours ago





Already tried to move /etc/auto_master~ to /tmp/ and create a new auto_master with no success. Followed your advice to remove auto_master~ but with no success touch: auto_master: Operation not permitted. Cannot figure out what's happening.

– radar
13 hours ago










1 Answer
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I managed to fix the issue by restarting in recovery mode, mounted the internal hard drive then copied the file. It's a workaround but it does not explain what's happening. Thank you very much Christopher.






share|improve this answer








New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

    – Christopher
    12 hours ago











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1 Answer
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1














I managed to fix the issue by restarting in recovery mode, mounted the internal hard drive then copied the file. It's a workaround but it does not explain what's happening. Thank you very much Christopher.






share|improve this answer








New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

    – Christopher
    12 hours ago
















1














I managed to fix the issue by restarting in recovery mode, mounted the internal hard drive then copied the file. It's a workaround but it does not explain what's happening. Thank you very much Christopher.






share|improve this answer








New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

    – Christopher
    12 hours ago














1












1








1







I managed to fix the issue by restarting in recovery mode, mounted the internal hard drive then copied the file. It's a workaround but it does not explain what's happening. Thank you very much Christopher.






share|improve this answer








New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.










I managed to fix the issue by restarting in recovery mode, mounted the internal hard drive then copied the file. It's a workaround but it does not explain what's happening. Thank you very much Christopher.







share|improve this answer








New contributor




radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this answer



share|improve this answer






New contributor




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answered 12 hours ago









radarradar

163




163




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radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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radar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

    – Christopher
    12 hours ago



















  • Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

    – Christopher
    12 hours ago

















Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

– Christopher
12 hours ago





Sure thing! I'll delete all my comments and suggest a close as "could not reproduce."

– Christopher
12 hours ago










radar is a new contributor. Be nice, and check out our Code of Conduct.










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