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08-18-2006 03:19 AM
08-18-2006 03:19 AM
unable to create or touch file
1) i have 2 servers A & B
2) A-Server, B-Client
3) i have exported the needed filesystem
through nfs (i.e /backup) and mounted
on /backup on client server (i.e server-B)
4) Problem i am unable to create or touch file
on Server-B
can any one tell me is there any issuse with
/backup filesystem permission or something else
permission
server-A /backup drwxr-xr-x
server-B /backup drwxr-xr-x
waiting for valuable reply
thanks
Regard
Ramash
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08-18-2006 03:23 AM
08-18-2006 03:23 AM
Re: unable to create or touch file
If you have not specified the options when sharing, then the default 'read-only' is used and hence the error.
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08-18-2006 03:27 AM
08-18-2006 03:27 AM
Re: unable to create or touch file
but in /etc/exports file i have mentioned
as follow
/backup -rw=ram1
is something wrong with the above statement
regards
Ramesh
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08-18-2006 03:33 AM
08-18-2006 03:33 AM
Re: unable to create or touch file
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08-18-2006 03:33 AM
08-18-2006 03:33 AM
Re: unable to create or touch file
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08-18-2006 03:44 AM
08-18-2006 03:44 AM
Re: unable to create or touch file
There are many reasons why you might get a permission denied error. The two most common reasons are:
1) You're logged in as the root user on the NFS client and trying to create a file in a filesystem that has not been exported to allow root users to create files (i.e. your exporting with -rw=ram1 but you have not specifically allowed root users on ram1 to create files). This will cause the create request to go over-the-wire with the permissions of UID=-2, GID=-2. Unless your directory permissions on the server are wide open and allow *everyone* to create files, this user won't be allowed to create files with these re-mapped uid/gid numbers.
2) Your NFS client has multiple IP interfaces and is sending the NFS request to the server using an interface that does not map to the name "ram1". This is typical in environments with multiple NIC cards in each system, where the system might be called "ram1" but the interface might resolve to a name "ram1-eth1" or "ram1-gige", etc. You have to export the filesystem using the hostname or IP address that matches the hostname/IP that the request came from or the request will fail.
If you check both of these and they turn out to not be the problem let us know and we'll offer more places to look.
Regards,
Dave
I work at HPE
HPE Support Center offers support for your HPE services and products when and how you need it. Get started with HPE Support Center today.
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]

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08-18-2006 03:45 AM
08-18-2006 03:45 AM
Re: unable to create or touch file
thanks friends for giving your valuable time for solving my problem
coming to the point
as you had said 'uid' and 'gid' are same i.e i am using ' root' user on both server
Ramesh
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08-18-2006 03:55 AM
08-18-2006 03:55 AM
Re: unable to create or touch file
Do a man exportfs and look under the "root=hostname" section. It will explain exactly your problem.
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08-18-2006 03:59 AM
08-18-2006 03:59 AM
Re: unable to create or touch file
Dave
I work at HPE
HPE Support Center offers support for your HPE services and products when and how you need it. Get started with HPE Support Center today.
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]
