[clue] Whack-a-disk
David L. Willson
DLWillson at TheGeek.NU
Tue Jul 29 13:28:44 MDT 2014
But now I demand that you teach an expect scripting class for SFS or CLUE, I mean. :-)
Not that I have any right, but I can try.
--
David L. Willson
Teacher, Engineer, Evangelist
RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA
Mobile 720-333-LANS(5267)
http://sofree.us
This is a good time for a r3VOLution.
----- Original Message -----
> Thanks for sharing, this will work well with my cloud deployment and
> puppet to automatically assemble a Lustre file system. No more
> expect script!
> On Tue, Jul 29, 2014 at 1:25 PM, David L. Willson <
> DLWillson at thegeek.nu > wrote:
> > Tried that. No dice. Actually what you said is how I used to do it,
> > but I was always annoyed by having to go interactive. If I'm going
> > to go interactive, I'm using cfdisk, because the interface is more
> > pretty / less suckful.
>
> > I always wanted non-interactive and *perfect*. I finally figured
> > out
> > how to get it today.
>
> > --
>
> > David L. Willson
>
> > Teacher, Engineer, Evangelist
>
> > RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA
>
> > Mobile 720-333-LANS(5267)
>
> > http://sofree.us
>
> > This is a good time for a r3VOLution.
>
> > > Oh, I do this from the parted command line, not as an argument to
> > > parted directly. I wonder if you surround it with quotes?
> >
>
> > > On Tue, Jul 29, 2014 at 1:19 PM, David L. Willson <
> > > DLWillson at thegeek.nu > wrote:
> >
>
> > > > Interesting. Trying your switches, I'm getting that 0 is an
> > > > invalid
> > > > argument. It seems to think that by "-0" I mean to specify a
> > > > switch,
> > > > not a parameter to the mkpart.
> > >
> >
>
> > > > --
> > >
> >
>
> > > > David L. Willson
> > >
> >
>
> > > > Teacher, Engineer, Evangelist
> > >
> >
>
> > > > RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP
> > > > NovellCLA
> > >
> >
>
> > > > Mobile 720-333-LANS(5267)
> > >
> >
>
> > > > http://sofree.us
> > >
> >
>
> > > > This is a good time for a r3VOLution.
> > >
> >
>
> > > > > For aligned disks I general do:
> > > >
> > >
> >
>
> > > > > mkpart primary 1 -0
> > > >
> > >
> >
>
> > > > > I suspect that is sector aligned and not cylinder aligned?
> > > >
> > >
> >
>
> > > > > On Tue, Jul 29, 2014 at 12:51 PM, David L. Willson <
> > > > > DLWillson at thegeek.nu > wrote:
> > > >
> > >
> >
>
> > > > > > How can I quickly and simply wipe and re-partition a disk
> > > > > > from
> > > > > > a
> > > > > > script?
> > > > >
> > > >
> > >
> >
>
> > > > > > Here's a proposal, using sdc as the example.
> > > > >
> > > >
> > >
> >
>
> > > > > > # Quickly wipe the head of the disk.
> > > > >
> > > >
> > >
> >
>
> > > > > > sudo dd if=/dev/zero of=/dev/sdc bs=16MB count=1
> > > > >
> > > >
> > >
> >
>
> > > > > > # Create a new, basic partition table. Good for up to 2TB.
> > > > >
> > > >
> > >
> >
>
> > > > > > sudo parted /dev/sdc mklabel msdos
> > > > >
> > > >
> > >
> >
>
> > > > > > # If you have a disk larger than 2TB, use this instead.
> > > > >
> > > >
> > >
> >
>
> > > > > > # sudo parted /dev/sdc mklabel gpt
> > > > >
> > > >
> > >
> >
>
> > > > > > # Create a new, cylinder-aligned, primary partition, the
> > > > > > full
> > > > > > size
> > > > > > of
> > > > > > the disk
> > > > >
> > > >
> > >
> >
>
> > > > > > sudo parted --align cylinder /dev/sdc mkpart primary 0%
> > > > > > 100%
> > > > >
> > > >
> > >
> >
>
> > > > > > The most interesting part might be that last line. I found
> > > > > > many
> > > > > > posts
> > > > > > by people looking for a way to create a partition using
> > > > > > parted
> > > > > > non-interactively that is the full size of the disk and
> > > > > > "properly
> > > > > > aligned for best performance", but I didn't find anyone
> > > > > > giving
> > > > > > the
> > > > > > answer. So... So that.
> > > > >
> > > >
> > >
> >
>
> > > > > > --
> > > > >
> > > >
> > >
> >
>
> > > > > > David L. Willson
> > > > >
> > > >
> > >
> >
>
> > > > > > Teacher, Engineer, Evangelist
> > > > >
> > > >
> > >
> >
>
> > > > > > RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP
> > > > > > NovellCLA
> > > > >
> > > >
> > >
> >
>
> > > > > > Mobile 720-333-LANS(5267)
> > > > >
> > > >
> > >
> >
>
> > > > > > http://sofree.us
> > > > >
> > > >
> > >
> >
>
> > > > > > This is a good time for a r3VOLution.
> > > > >
> > > >
> > >
> >
>
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