Ubuntu root can't give any permissions?
Information about my Ubuntu:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial
I have a problem. I can't give any permissions nor change them as a root (sudo su, sudo -i etc). What should I do? How do I find the cause of this? How to fix it?
sudo nano test.sh
Output: Error writing lock file ./.test.sh.swp: Permission denied
Giving an user account its own permissions:
sudo chown -R student121:student121 /home/opilane121/
Output: Tons of Operation not permitted texts
Answer to comments:
1) NFS4 is read-write only
2) Output of mount | grep home:
mount | grep home
10.16.122.2:/data/users/students on /home type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,po rt=0,timeo=14,retrans=2,sec=sys,clientaddr=10.16.122.146,local_lock=none,addr= 10.16.122.2)
permissions root
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
add a comment |
Information about my Ubuntu:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial
I have a problem. I can't give any permissions nor change them as a root (sudo su, sudo -i etc). What should I do? How do I find the cause of this? How to fix it?
sudo nano test.sh
Output: Error writing lock file ./.test.sh.swp: Permission denied
Giving an user account its own permissions:
sudo chown -R student121:student121 /home/opilane121/
Output: Tons of Operation not permitted texts
Answer to comments:
1) NFS4 is read-write only
2) Output of mount | grep home:
mount | grep home
10.16.122.2:/data/users/students on /home type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,po rt=0,timeo=14,retrans=2,sec=sys,clientaddr=10.16.122.146,local_lock=none,addr= 10.16.122.2)
permissions root
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
1
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
1
Please edit your post and include the output ofmount | grep /home
– vidarlo
Feb 4 at 11:45
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
1
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22
add a comment |
Information about my Ubuntu:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial
I have a problem. I can't give any permissions nor change them as a root (sudo su, sudo -i etc). What should I do? How do I find the cause of this? How to fix it?
sudo nano test.sh
Output: Error writing lock file ./.test.sh.swp: Permission denied
Giving an user account its own permissions:
sudo chown -R student121:student121 /home/opilane121/
Output: Tons of Operation not permitted texts
Answer to comments:
1) NFS4 is read-write only
2) Output of mount | grep home:
mount | grep home
10.16.122.2:/data/users/students on /home type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,po rt=0,timeo=14,retrans=2,sec=sys,clientaddr=10.16.122.146,local_lock=none,addr= 10.16.122.2)
permissions root
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
Information about my Ubuntu:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial
I have a problem. I can't give any permissions nor change them as a root (sudo su, sudo -i etc). What should I do? How do I find the cause of this? How to fix it?
sudo nano test.sh
Output: Error writing lock file ./.test.sh.swp: Permission denied
Giving an user account its own permissions:
sudo chown -R student121:student121 /home/opilane121/
Output: Tons of Operation not permitted texts
Answer to comments:
1) NFS4 is read-write only
2) Output of mount | grep home:
mount | grep home
10.16.122.2:/data/users/students on /home type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,po rt=0,timeo=14,retrans=2,sec=sys,clientaddr=10.16.122.146,local_lock=none,addr= 10.16.122.2)
permissions root
permissions root
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
edited Feb 4 at 12:07
Kristen Ungur
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
asked Feb 4 at 11:07
Kristen UngurKristen Ungur
334
334
1
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
1
Please edit your post and include the output ofmount | grep /home
– vidarlo
Feb 4 at 11:45
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
1
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22
add a comment |
1
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
1
Please edit your post and include the output ofmount | grep /home
– vidarlo
Feb 4 at 11:45
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
1
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22
1
1
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
1
1
Please edit your post and include the output of
mount | grep /home– vidarlo
Feb 4 at 11:45
Please edit your post and include the output of
mount | grep /home– vidarlo
Feb 4 at 11:45
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
1
1
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22
add a comment |
1 Answer
1
active
oldest
votes
The NFS-server is probably running with root_squash:
Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.
It basically maps root to a different user with least privileges. This is the default setting on NFS.
Talk with you server administrator, or if you are the server administrator, add option no_root_squash to the /etc/exports on the server.
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
add a comment |
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1 Answer
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1 Answer
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oldest
votes
The NFS-server is probably running with root_squash:
Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.
It basically maps root to a different user with least privileges. This is the default setting on NFS.
Talk with you server administrator, or if you are the server administrator, add option no_root_squash to the /etc/exports on the server.
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
add a comment |
The NFS-server is probably running with root_squash:
Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.
It basically maps root to a different user with least privileges. This is the default setting on NFS.
Talk with you server administrator, or if you are the server administrator, add option no_root_squash to the /etc/exports on the server.
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
add a comment |
The NFS-server is probably running with root_squash:
Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.
It basically maps root to a different user with least privileges. This is the default setting on NFS.
Talk with you server administrator, or if you are the server administrator, add option no_root_squash to the /etc/exports on the server.
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
The NFS-server is probably running with root_squash:
Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.
It basically maps root to a different user with least privileges. This is the default setting on NFS.
Talk with you server administrator, or if you are the server administrator, add option no_root_squash to the /etc/exports on the server.
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
answered Feb 4 at 12:57
vidarlovidarlo
10.5k52751
10.5k52751
add a comment |
add a comment |
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1
I don't know your issue, but are you trying to change details on a read-only device/partition? Is it mounted read-write? or read-only? (has the file-system got errors that need fixing before you can mount it read-write?)
– guiverc
Feb 4 at 11:22
1
Please edit your post and include the output of
mount | grep /home– vidarlo
Feb 4 at 11:45
Hi there! I updated the post. Answered to your questions and included the output of that command. Please, take a look at it, sir/ma'am.
– Kristen Ungur
Feb 4 at 11:50
1
The fact that you mount the NFS as r/w doesn't mean that the server gives you full rights on it (especially NFS4...)
– xenoid
Feb 4 at 12:21
Hmm. What should I do then? Where should I start doing things? :( I'm clueless right now. :/
– Kristen Ungur
Feb 4 at 12:22