In /etc/exports, I configured like that
/var/vols/tzhong *(rw,sync,anonuid=1999,anongid=1999,root_squash)
If I mount the nfs folder /var/vols/tzhong to my local folder /mnt/tzhong. I use root user to create a file under /mnt/tzhong, the file ownership will be 1999:1999. Is that possible to change the uid and gid when doing the mount command? Something like below.
mount -t nfs4 -o uid=2000 -o gid=2000 192.168.1.123:/var/vols/tzhong /mnt/tzhong
So the ownership of folder /mnt/tzhong will be 2000:2000. Also, all the files created under /mnt/tzhong will be 2000:2000.
But, actually, the command is failed with mount.nfs4: an incorrect mount option was specified.
Related
On a Windows file share I created a folder and shared it with a service account.
I have added a mount point entry to fstab like this:
//server/folder /mnt/folder cifs credentials=/root/creds/creds,noperm
Where the creds file contains credentials for above mentioned service account.
Then run mount -a to activate the mount point.
It gives an error like:
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
Couldn't chdir to /mnt/folder: No such file or directory
I have tried mounting the directory manually and receive the same error.
What the heck am I missing?
Ah. I had not created folder in /mnt/folder on the UNIX side. Did mkdir /mnt/folder.
I was then able to see folder in /mnt but it was empty.
Did a mount -a and can now see the contents of the Windows share in /mnt/folder
I seems like I had to do mount -a from /etc as when I issued the command from /mnt it just hung for a while until I killed it and then tried from /etc
I am trying to mount a file that will act as a read/write HFS+ filesystem. I am using arch linux based distro so I installed hfsprogs and hfsutils. In debian based distros hfsprogs should be enough.
I created a 8G file like this:
dd if=/dev/zero of=test.img bs=1024 count=0 seek=$[1000*8000]
Then I did the formatting:
mkfs.hfsplus -v TestImg test.img
After that when I try to mount the file I get:
mkdir /tmp/sun
sudo mount -t hfsplus -o loop,rw,offset=0 test.img /tmp/sun
mount: /tmp/sun: mount failed: Operation not permitted
Parted shows that offset it ok:
sudo parted -m test.img unit B print
1:0B:8191999999B:8192000000B:hfs+::;
I also tried to use fdisk with the file creating sun partition table but that did not help either. Can you help me please with creating HFS+ rw filesystem as a file?
I used loop device inappropriately.
The correct steps are:
Create file
dd if=/dev/zero of=test.img bs=100MB count=10 seek=$[10*8]
Create blocked device mapped to that file:
losetup -fP test.img
At this point blocked device /dev/loop0 got created.
Create filesystem:
mkfs.hfsplus test.img
Mount to your folder
mount -o rw,loop /dev/loop0 /tmp/loop_test
Im using codeship for deployment and it provides a way to access the build machine with ssh:
ssh rof#1.2.3.4 -p 65503
This works fine and I get into the machine. Now I want to copy a file from the remote machine to my local machine. Im trying:
sudo scp -p 65503 -v -i ~/.ssh/id_rsa rof#1.2.3.4:~/home/rof/cache/app.js /
And I get a whole host of errors:
cp: 65503: No such file or directory
cp: -v: No such file or directory
cp: -i: No such file or directory
rof#23.20.112.101: Permission denied (publickey).
I dont know why it's saying No such file or directory for each argument.
id_rsa exists and is in ~/.ssh/ directory.
The Permission Denied error appears to be a separate issue.
Any ideas?
The first problem I see from looking at the documentation:
man scp:
-P port
Specifies the port to connect to on the remote host. Note that
this option is written with a capital ‘P’, because -p is
already reserved for preserving the times and modes of the
file.
-p Preserves modification times, access times, and modes from the
original file.
So scp -p is taken to mean "copy while preserving timestamps" and 65503 is the name of (one of the) source file(s).
Try scp -P 65503 instead.
scp -r /Applications/XAMPP/htdocs/keypairfile.pem uploads ec2-user#publicdns:/var/www/html
where uploads is a directory returns Permission denied (publickey).
However
scp -i /Applications/XAMPP/htdocs/keypairfile.pem footer.php ec2-user#publicdns:/var/www/html
works (notice the flag change).
uploads is an empty folder
These are the file permissions for the uploads directory
drwxrwxrwx 3 geoffreysangston admin 102 Nov 15 01:40 uploads
These are the file permissions for /var/www/html
drwxr-x--- 2 ec2-user ec2-user 4096 Jan 5 20:45 html
I've tried changing html to 777 and that doesn't work either.
The -i flag specifies the private key (.pem file) to use. If you don't specify that flag (as in your first command) it will use your default ssh key (usually under ~/.ssh/).
So in your first command, you are actually asking scp to upload the .pem file itself using your default ssh key. I don't think that is what you want.
Try instead with:
scp -r -i /Applications/XAMPP/htdocs/keypairfile.pem uploads/* ec2-user#publicdns:/var/www/html/uploads
Even if above solutions don't work, check permissions to destination file of aws ec2 instance. May be you can try with- sudo chmod 777 -R destinationFolder/*
transferring file from local to remote host
scp -i (path of your key) (path for your file to be transferred) (username#ip):(path where file to be copied)
e.g scp -i aws.pem /home/user1/Desktop/testFile ec2-user#someipAddress:/home/ec2-user/
P.S. - ec2-user#someipAddress of this ip address should have access to the destination folder in my case /home/ec2-user/
If you want to upload the file /Applications/XAMPP/htdocs/keypairfile.pem to ec2-user#publicdns:/var/www/html, you can simply do:
scp -Cr /Applications/XAMPP/htdocs/keypairfile.pem/uploads/ ec2-user#publicdns:/var/www/html/
Where:
-C - Compress data
-r - Recursive
answer for newbies (like me):
I had this error when trying to copy the files while being on the server.
So my answer is: exit, or open another terminal
To generate the .ssh dir I use this command:
ssh-keygen
taken from this tutorial: http://ebiquity.umbc.edu/Tutorials/Hadoop/05%20-%20Setup%20SSHD.html
But the .ssh directory is not created so when I use cd ~/.ssh I get this error:
"no such file or directory"
Is there a step missing ? Should the .ssh dir be created when I use the ssh-keygen command?
I am assuming that you have enough permissions to create this directory.
To fix your problem, you can either ssh to some other location:
ssh user#some.host
and accept new key - it will create directory ~/.ssh and known_hosts underneath, or simply create it manually using
mkdir ~/.ssh
chmod 700 ~/.ssh
Note that chmod 700 is an important step!
After that, ssh-keygen should work without complaints.
Is there a step missing?
Yes. You need to create the directory:
mkdir ${HOME}/.ssh
Additionally, SSH requires you to set the permissions so that only you (the owner) can access anything in ~/.ssh:
% chmod 700 ~/.ssh
Should the .ssh dir be generated when I use the ssh-keygen command?
No. This command generates an SSH key pair but will fail if it cannot write to the required directory:
% ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/xxx/.ssh/id_rsa): /Users/tmp/does_not_exist
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
open /Users/tmp/does_not_exist failed: No such file or directory.
Saving the key failed: /Users/tmp/does_not_exist.
Once you've created your keys, you should also restrict who can read those key files to just yourself:
% chmod -R go-wrx ~/.ssh/*
As a slight improvement over the other answers, you can do the mkdir and chmod as a single operation using mkdir's -m switch.
$ mkdir -m 700 ${HOME}/.ssh
Usage
From a Linux system
$ mkdir --help
Usage: mkdir [OPTION]... DIRECTORY...
Create the DIRECTORY(ies), if they do not already exist.
Mandatory arguments to long options are mandatory for short options too.
-m, --mode=MODE set file mode (as in chmod), not a=rwx - umask
...
...