nilfs_cleanerd doesn't get started when /etc/mtab is a symlink

nilfs_cleanerd doesn't get started when /etc/mtab is a symlink

[Eric Sandeen]

https://bugzilla.redhat.com/show_bug.cgi?id=701735

From the bug:

> # mount -t nilfs2 /dev/nbd1 /media/fedora/src
> mount.nilfs2: cannot modify /etc/mtab.
> Please remount the partition with -f option after making /etc/mtab writable.
> nilfs_cleanerd not started
> 
> But /etc/mtab is now a symlink, which just exists for the benefit of legacy
> code which expects to be able to read it.

Any suggestions?  (/etc/mtab is now a symlink to /proc/partitions)

Thanks,
-Eric
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Re: nilfs_cleanerd doesn't get started when /etc/mtab is a symlink

[Ryusuke Konishi]

Hi Eric,
On Thu, 16 Jun 2011 15:57:07 -0500, Eric Sandeen wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=701735
> 
> From the bug:
> 
> > # mount -t nilfs2 /dev/nbd1 /media/fedora/src
> > mount.nilfs2: cannot modify /etc/mtab.
> > Please remount the partition with -f option after making /etc/mtab writable.
> > nilfs_cleanerd not started
> > 
> > But /etc/mtab is now a symlink, which just exists for the benefit of legacy
> > code which expects to be able to read it.
> 
> Any suggestions?  (/etc/mtab is now a symlink to /proc/partitions)

Thank you for letting me know this.

The problem is mount/umount helper programs of nilfs2 are using a few
userspace mount options like "uhelper=" option; these userspace
options ("gcpid=", "pp=", and "nogc" options in the case of nilfs)
required modifying mtab.

I will consider eliminating them before upcoming nilfs-utils-2.1
release.


Thanks,
Ryusuke Konishi
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