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Full Discussion: Normal LOFS behaviour?
Operating Systems Solaris Normal LOFS behaviour? Post 302300039 by blowtorch on Monday 23rd of March 2009 04:23:00 AM
Old 03-23-2009
I tested out on another system (a test box), and this is apparently normal LOFS behaviour.

Q. Is this normal behaviour for LOFS mounted filesystems? If I mount x on top of y, and create a mountpoint z that uses x as part of the directory name, will I not be able to access the mountpoint z by using y as part of the directory name?

A. Yes. To be able to access mountpoint z for a different filesystem that uses either x or y as part of the pathname, z will have to contain the pathname x when it gets mounted. Then you can access it via either /x/z or /y/z.
 

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LEARN ABOUT CENTOS

mountpoint

MOUNTPOINT(1)							   User Commands						     MOUNTPOINT(1)

NAME

       mountpoint - see if a directory is a mountpoint

SYNOPSIS

       mountpoint [-q] [-d] directory

       mountpoint -x device

DESCRIPTION

       mountpoint checks if the directory is mentioned in the /proc/self/mountinfo file.

OPTIONS

       -h, --help
	      Print help and exit.

       -q, --quiet
	      Be quiet - don't print anything.

       -d, --fs-devno
	      Print major/minor device number of the filesystem on stdout.

       -x, --devno
	      Print major/minor device number of the blockdevice on stdout.

EXIT STATUS

       Zero if the directory is a mountpoint, non-zero if not.

AUTHOR

       Karel Zak <kzak@redhat.com>

ENVIRONMENT

       LIBMOUNT_DEBUG=0xffff
	      enables debug output.

NOTES

       The  util-linux	mountpoint  implementation  was  written from scratch for libmount. The original version for sysvinit suite was written by
       Miquel van Smoorenburg.

SEE ALSO

       mount(8)

AVAILABILITY

       The mountpoint command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2011							     MOUNTPOINT(1)
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