[RFD]: Help in setting up XFS

[RFD]: Help in setting up XFS

[Prithvi Rathore]

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Hi,
As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013.
My understanding is:

1) I will have to install the packages
$ sudo apt-get install xfsprogs
$ sudo apt-get install xfsdump

2) I will have to create the filesystem for the USB drive
$ mkfs.xfs -f dev/sdab1
-f option needed to overwrite any exisitng filesytem

I would appreciate if you could add any comments or guide me for the same. Thanking you in anticipation 
 		 	   		  

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Re: [RFD]: Help in setting up XFS

[Dave Chinner]

On Mon, Aug 18, 2014 at 10:22:37AM +0530, Prithvi Rathore wrote:
> Hi,
> As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013.
> My understanding is:
> 
> 1) I will have to install the packages
> $ sudo apt-get install xfsprogs
> $ sudo apt-get install xfsdump
> 
> 2) I will have to create the filesystem for the USB drive
> $ mkfs.xfs -f dev/sdab1
> -f option needed to overwrite any exisitng filesytem

And then mount it appropriately and it will be ready to use.
Nothing more.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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RE: [RFD]: Help in setting up XFS

[Prithvi Rathore]

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Hi Dave,
   I really appreciate you help in this matter.

> Date: Mon, 18 Aug 2014 17:03:12 +1000
> From: david@fromorbit.com
> To: prithvi_rathore@outlook.com
> CC: xfs@oss.sgi.com
> Subject: Re: [RFD]: Help in setting up XFS
> 
> On Mon, Aug 18, 2014 at 10:22:37AM +0530, Prithvi Rathore wrote:
> > Hi,
> > As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013.
> > My understanding is:
> > 
> > 1) I will have to install the packages
> > $ sudo apt-get install xfsprogs
> > $ sudo apt-get install xfsdump
> > 
> > 2) I will have to create the filesystem for the USB drive
> > $ mkfs.xfs -f dev/sdab1
> > -f option needed to overwrite any existing filesytem
 
> And then mount it appropriately and it will be ready to use.
> Nothing more.

About the part where you say mount it properly, I just wanted to check if this is correct.

1)Create a mount point.
    $ mkdir /mnt/dat1

2)Mount the drive.
   $ mount -t xfs /dev/sdc1 /mnt/dat1

And i will have to do this every time I want to use the pendrive

Warm Regards,
Prithvi
 		 	   		  

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RE: [RFD]: Help in setting up XFS

[Carlos E. R.]

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On Monday, 2014-08-18 at 15:00 +0530, Prithvi Rathore wrote:

> About the part where you say mount it properly, I just wanted to check if this is correct.
> 
> 1)Create a mount point.
>     $ mkdir /mnt/dat1

Just plug in the stick and click on the icon to mount it. No different 
than any other filesystem.

If it doesn't work, just ask on the help forum or mail lists of your 
distribution.

- -- 
Cheers,
        Carlos E. R.
        (from 13.1 x86_64 "Bottle" at Telcontar)
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Re: [RFD]: Help in setting up XFS

[Dave Chinner]

On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote:
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> 
> 
> On Monday, 2014-08-18 at 15:00 +0530, Prithvi Rathore wrote:
> 
> >About the part where you say mount it properly, I just wanted to check if this is correct.
> >
> >1)Create a mount point.
> >    $ mkdir /mnt/dat1
> 
> Just plug in the stick and click on the icon to mount it. No
> different than any other filesystem.

That doesn't work for machines with no desktop or ones that you
access via ssh. Learn the command line first then you can always get
the machine to do what you want regardless of how you need to access
it. Indeed, typing commands is often faster than using the mouse,
especially if you know how to use command history search
effectively...

> If it doesn't work, just ask on the help forum or mail lists of your
> distribution.

That's just wrong. If you've got an XFS problem or question, then
this mailing list is exactly the right place to be asking for help.

Cheers,

Dave.

-- 
Dave Chinner
david@fromorbit.com

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Re: [RFD]: Help in setting up XFS

[Carlos E. R.]

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On Monday, 2014-08-18 at 23:20 +1000, Dave Chinner wrote:
> On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote:


>> Just plug in the stick and click on the icon to mount it. No
>> different than any other filesystem.
>
> That doesn't work for machines with no desktop or ones that you
> access via ssh. Learn the command line first then you can always get
> the machine to do what you want regardless of how you need to access
> it. Indeed, typing commands is often faster than using the mouse,
> especially if you know how to use command history search
> effectively...

I use the CLI method myself, but I don't see the point on novices using it 
when there are modern methods far easier :-)

    Me, I would make sure the filesystem gets a label, and probably
    create an entry in fstab using that label, with the "user" option
    so that plain users can mount it. Then we have to add a directory
    as root owned by that user inside the stick so that he can write.
    Anyway, the procedure is the same for any Linux filesystem (but
    not for NTFS or FAT), not specific to XFS.


>> If it doesn't work, just ask on the help forum or mail lists of your
>> distribution.
>
> That's just wrong. If you've got an XFS problem or question, then
> this mailing list is exactly the right place to be asking for help.

IMHO no, because, for instance, the method for installation differs in 
each distribution, and their help forums should be more suited for such a 
basic guidance. Anyway, mounting or creating an XFS stick is the same as 
for ext4, btrfs, fat, reiserfs...

     I do a lot of that guidance, have been doing it for
     well over a decade ;-)


And each distribution has specifics. On ubuntu you probably need to do 
"sudo mount ...", a plain mount should fail. So if the generalized help an 
upstream mail list can provide, the best place to ask for help is the 
specific help forum of that distribution, as they will probably know best 
the easiest way to install and use the tools they provide.


But that's just my opinion :-)


- -- 
Cheers,
        Carlos E. R.
        (from openSUSE 13.1 x86_64 "Bottle" at Telcontar)
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Re: [RFD]: Help in setting up XFS

[Dave Chinner]

On Mon, Aug 18, 2014 at 04:47:36PM +0200, Carlos E. R. wrote:
> On Monday, 2014-08-18 at 23:20 +1000, Dave Chinner wrote:
> >On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote:
> >>Just plug in the stick and click on the icon to mount it. No
> >>different than any other filesystem.
> >
> >That doesn't work for machines with no desktop or ones that you
> >access via ssh. Learn the command line first then you can always get
> >the machine to do what you want regardless of how you need to access
> >it. Indeed, typing commands is often faster than using the mouse,
> >especially if you know how to use command history search
> >effectively...
> 
> I use the CLI method myself, but I don't see the point on novices
> using it when there are modern methods far easier :-)

That's quite disrespectful and condescending towards new users who
are trying to learn new skills - you were once a novice, too. To
make my point unambiguously clear, I'll repeat what you just said as
it came across to me:

	'I'm an expert and I know the CLI, but I think he is a dumb
	n00b so I gave him a solution I think is appropriate for
	dumb n00bs even though I know I'm not answering the question
	he asked.'

Does that sound like appropriate "guidance" to you?

But I'll give you the benefit of the doubt - I've seen this often
enough to know that frequently people are not even aware they are
making unconcious judgements like this until they are pointed out.
Especially as you've done is again in this email:

> And each distribution has specifics. On ubuntu you probably need to
> do "sudo mount ...", a plain mount should fail. So if the
> generalized help an upstream mail list can provide, the best place
> to ask for help is the specific help forum of that distribution, as
> they will probably know best the easiest way to install and use the
> tools they provide.

You are implying that the XFS community doesn't have the knowledge
or experience to support XFS users from different distros.  You are
also implying that we don't care about our users enough to try to
help them in such situations where the problem is a distro specific
quirk. Years of experience has taught us that distro quirks really
don't matter anywhere near as much as, say, the version of software
being used.

Also, I suspect that you don't realise that we have all the major
distro XFS userspace package maintainers and the relevant distro
kernel filesystem maintainers on the list and listening in. We
actually have more distro specific storage infrastructure expertise
(not to mention overall storage expertise) on this list than you'll
find in most individual distro support forums.

This is a highly technical community and we tend to have high
standards w.r.t. to the quality of responses given to users.  If you
want to provide help to XFS users - new or experienced - on this
list, then please give relevant, respectful answers to questions
without trying to demonstrate your expertise to everyone.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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Re: [RFD]: Help in setting up XFS

[Dave Chinner]

On Mon, Aug 18, 2014 at 03:00:31PM +0530, Prithvi Rathore wrote:
> Hi Dave,
>    I really appreciate you help in this matter.
> 
> > Date: Mon, 18 Aug 2014 17:03:12 +1000
> > From: david@fromorbit.com
> > To: prithvi_rathore@outlook.com
> > CC: xfs@oss.sgi.com
> > Subject: Re: [RFD]: Help in setting up XFS
> > 
> > On Mon, Aug 18, 2014 at 10:22:37AM +0530, Prithvi Rathore wrote:
> > > Hi,
> > > As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013.
> > > My understanding is:
> > > 
> > > 1) I will have to install the packages
> > > $ sudo apt-get install xfsprogs
> > > $ sudo apt-get install xfsdump
> > > 
> > > 2) I will have to create the filesystem for the USB drive
> > > $ mkfs.xfs -f dev/sdab1
> > > -f option needed to overwrite any existing filesytem
>  
> > And then mount it appropriately and it will be ready to use.
> > Nothing more.
> 
> About the part where you say mount it properly, I just wanted to check if this is correct.
> 
> 1)Create a mount point.
>     $ mkdir /mnt/dat1
> 
> 2)Mount the drive.
>    $ mount -t xfs /dev/sdc1 /mnt/dat1

mount will work out that it contains XFS and do the right thing
automatically. i.e. this should work just fine:

    $ mount /dev/sdc1 /mnt/dat1

Look in dmesg to see what happens at the kernel level when you run
the command, and compare the difference with and without the "-t
xfs"....

> And i will have to do this every time I want to use the pendrive

Only the mount command. the mount point won't go away unless you
remove it.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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