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Re: [Gluster-devel] Loop mounting

From: Brent A Nelson
Subject: Re: [Gluster-devel] Loop mounting
Date: Wed, 15 Aug 2007 11:59:05 -0400 (EDT)

I've done loop mounting of ISO images from an older version of GlusterFS and Fuse 2.6.3. It worked, and I was able to copy files out.

"mount -r -o loop=/dev/loop0 /glusterfs/file.iso /mnt".

I don't think I've ever written to a loop mount in this manner, though.



On Wed, 15 Aug 2007, Anand Avati wrote:

this seems to be a limitation of FUSE itself, because it is mmap()'ing a
file in read-write mode, which seems to have a problem in fuse. I will soon
confirm if this is the same cause.


2007/8/15, Michael Fincham <address@hidden>:

Hi everyone,

Has anyone had success with loop mounting a file stored on a glusterfs

address@hidden:/mnt/temp$ sudo losetup -f file.img
ioctl: LOOP_SET_FD: Invalid argument

I get this error but the same image works fine on an ext2 partition.

I've discussed this a little on the IRC room, and apparently it's being
investigated, but I figured I'd ask if anyone else has come up against it
and has a short-term solution.

Thanks everyone, esp. glusterfs devs ;)

-Michael Fincham
Unleash Technology Solutions

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