fusermount: failed to mark mounts private: Invalid argument

[Imre Dávid Kosztka]

Hi,

Why get I this error? On SLED10, I have no root rights. What Can I do?

fusermount: failed to mark mounts private: Invalid argument

tup error: Unable to unmount the fuse file-system on .tup/mnt (return code = 256). You may have to unmount this manually as root: umount -f .tup/mnt

[Mike Shal]

Any idea what version of fuse SLED 10 comes with? This might show you:

$ rpm -qi fuse

It looks like SLED10 was released a while ago, so perhaps it has an
older version of fuse (I started using fuse-2.8.5 I think). You
shouldn't need root access to run tup unless you want to run processes
in a chroot environment, though I don't know exactly what is causing
this particular error. Are you able to use other fuse-based
filesystems (like sshfs) and unmount them with 'fusermount -u'?

-Mike

[Gábor Márton]

Hi Kocka!

Do you have any update on this?

BR,

Gabor

[Anatol Pomozov]

Hi

On Wed, May 23, 2012 at 4:12 AM, Imre Dávid Kosztka <kosz...@gmail.com> wrote:

Hi,

Why get I this error? On SLED10, I have no root rights. What Can I do?

fusermount: failed to mark mounts private: Invalid argument

The error comes from this line in fusermount code:

res = mount("", "/", "", MS_PRIVATE | MS_REC, NULL);

        if (res == -1) {

                fprintf(stderr, "%s: failed to mark mounts private: %s\n",

                        progname, strerror(errno));

                return 1;

        }

And my guess that SLED has ancient version of kernel that does not support MS_PRIVATE key in mount() call. Private mounts support was added in kernel version 2.6.15 (released in January 2006)

What kernel do you have? Show us output of

$ uname -r

 

tup error: Unable to unmount the fuse file-system on .tup/mnt (return code = 256). You may have to unmount this manually as root: umount -f .tup/mnt

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[Gábor Márton]

Hi, 

I am experiencing this error on SLES 11. 

uname -r gives:

2.6.32.45-0.3-xen

Thanks,

Gabor

[Gábor Márton]

Update:

I have recognized that this problem is appearing only, when a ClearCase dynamic view is also mounted by cleartool setview command.

When I am not setting any dynamic ClearCase view there is no such problem. Maybe CC also uses fusermount?

BR,

Gabor

[Anatol Pomozov]

Hi,

On Tue, Feb 12, 2013 at 1:18 AM, Gábor Márton <marton...@gmail.com> wrote:

Update:

I have recognized that this problem is appearing only, when a ClearCase dynamic view is also mounted by cleartool setview command.

When I am not setting any dynamic ClearCase view there is no such problem. Maybe CC also uses fusermount?

I do not use ClearCase and do not know the answer to your question, but following discussion seems relevant to your question https://groups.google.com/group/tup-users/tree/browse_frm/month/2012-06/4e324070fe23616c?rnum=31&_done=/group/tup-users/browse_frm/month/2012-06?&pli=1

 

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[Gábor Márton]

Hi Anatol,

Thanks for your answer. 

Though my problem is not solved, I've found a workaround which I would like to share with other ClearCase and TUP users:

I have discovered, that ClearCase uses a specific filesystem which is kinda similar to the fuse: MVFS. The specific problem with fusermount happens only, when a view is set with the cleartool setview command. However a view can be accessed (even checkout is working) without explicitly setting it, through /view/your_view_tag/. So the workaround is to not use the setview command, and access the files in CC through /view/your_view_tag.

BR,

Gabor