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cannot su into root default shell - debian

Git / Jenkins permission problemRoot password not working when trying to updateWhat exactly differentiates the root user from every other user?How to add myself to sudoers when I have no root access on my debian machine?How to add the only user on a Debian system back into the sudo group?How can I protect my user passwords and passphrase from rootRoot user unable to see files/directoriesunable to add user to group fedora 29su: cannot open session: Permission deniedRestrict root shell access

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0

I am using a debian 9 server.

Usually I access via ssh to a normal user (say user1) and su into root, because I disabled ssh into root.
Lately I was setting up a git-server where I created a user git with the group git and restricted him to git-shell.
Playing around a little while a added user1 to the group git like this

usermod -aG git user1

This worked alright, user1 was member of the groups user1 and git.
At the end I wanted to undo this, so I used

usermod -G user1 user1

Shortly after this, I lost my internet connection and had to reconnect. I can ssh into user1 alright, but when using su to access root, there is an error:

user1@hostname:~$ su 

Password: 

Cannot execute git: No such file or directory

I included the information about git-shell, because I have no idea what else could be the reason. Hopefully it is not all lost and somebody can help me to regain control.

PS: There isnt any other root-like user, so sudo isnt working, since user1 "is not in the sudoers file".

PPS: I could reset the root password, but I am not quite sure whether this is going to work or make everything worse...

debian root git usermod

share|improve this question

edited 37 mins ago

Pratched

asked 56 mins ago

PratchedPratched

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

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Can you try su -s /bin/sh to try to get a root shell?
  
  – doneal24
  49 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  unfortunately same error...
  
  – Pratched
  47 mins ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  To work it some more, how about su -s /bin/sh -c /bin/sh? Seems like overkill but it's worth a try.
  
  – doneal24
  37 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Cannot execute git - so similar error, the "missing directory" ist not mentioned here
  
  – Pratched
  35 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  would root password reset be worth a try?
  
  – Pratched
  34 mins ago
  

  
  
  
  

 | 
show 4 more comments

0

I am using a debian 9 server.

Usually I access via ssh to a normal user (say user1) and su into root, because I disabled ssh into root.
Lately I was setting up a git-server where I created a user git with the group git and restricted him to git-shell.
Playing around a little while a added user1 to the group git like this

usermod -aG git user1

This worked alright, user1 was member of the groups user1 and git.
At the end I wanted to undo this, so I used

usermod -G user1 user1

Shortly after this, I lost my internet connection and had to reconnect. I can ssh into user1 alright, but when using su to access root, there is an error:

user1@hostname:~$ su 

Password: 

Cannot execute git: No such file or directory

I included the information about git-shell, because I have no idea what else could be the reason. Hopefully it is not all lost and somebody can help me to regain control.

PS: There isnt any other root-like user, so sudo isnt working, since user1 "is not in the sudoers file".

PPS: I could reset the root password, but I am not quite sure whether this is going to work or make everything worse...

debian root git usermod

share|improve this question

edited 37 mins ago

Pratched

asked 56 mins ago

PratchedPratched

11

New contributor

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

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Can you try su -s /bin/sh to try to get a root shell?
  
  – doneal24
  49 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  unfortunately same error...
  
  – Pratched
  47 mins ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  To work it some more, how about su -s /bin/sh -c /bin/sh? Seems like overkill but it's worth a try.
  
  – doneal24
  37 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Cannot execute git - so similar error, the "missing directory" ist not mentioned here
  
  – Pratched
  35 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  would root password reset be worth a try?
  
  – Pratched
  34 mins ago
  

  
  
  
  

 | 
show 4 more comments

I am using a debian 9 server.

Usually I access via ssh to a normal user (say user1) and su into root, because I disabled ssh into root.
Lately I was setting up a git-server where I created a user git with the group git and restricted him to git-shell.
Playing around a little while a added user1 to the group git like this

usermod -aG git user1

This worked alright, user1 was member of the groups user1 and git.
At the end I wanted to undo this, so I used

usermod -G user1 user1

Shortly after this, I lost my internet connection and had to reconnect. I can ssh into user1 alright, but when using su to access root, there is an error:

user1@hostname:~$ su 

Password: 

Cannot execute git: No such file or directory

I included the information about git-shell, because I have no idea what else could be the reason. Hopefully it is not all lost and somebody can help me to regain control.

PS: There isnt any other root-like user, so sudo isnt working, since user1 "is not in the sudoers file".

PPS: I could reset the root password, but I am not quite sure whether this is going to work or make everything worse...

debian root git usermod

share|improve this question

edited 37 mins ago

Pratched

asked 56 mins ago

PratchedPratched

11

New contributor

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

usermod -aG git user1

usermod -G user1 user1

user1@hostname:~$ su 

Password: 

Cannot execute git: No such file or directory

share|improve this question

edited 37 mins ago

Pratched

asked 56 mins ago

PratchedPratched

11

New contributor

Pratched 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

edited 37 mins ago

Pratched

asked 56 mins ago

PratchedPratched

11

New contributor

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

asked 56 mins ago

PratchedPratched

11

New contributor

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

asked 56 mins ago

PratchedPratched

11