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Re: [Xen-users] [Xen-API] Installing XCP from USB thumb

I am sorry for being so dense, but I can't tell what is happening.

This is building a thumbdrive installation by using a Linux system to
construct the contents for the thumb drive?

The ISO is openned with 7-zip and three files are copied o the root of
the thumb drive.  What was it that YUMI put on the thumbdrive?

Can something similar be done from a Windows 7 system?


 Message: 16
Date: Mon, 25 Jun 2012 15:24:08 -0500
From: Shawn Henderson <shenderson@xxxxxxxxxxxxx>
To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>, Mike McClurg
Cc: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>, Eric
<epretorious@xxxxxxxxx>, "xen-api@xxxxxxxxxxxxx"
Subject: Re: [Xen-users] [Xen-API] Installing XCP from USB thumb
Content-Type: text/plain; charset="Windows-1252"

Here's how we did it (from my engineer):

What we did to get XCP install from a USB stick.
Step #1) Download all the things
YUMI. (I used but any version should work) -
XCP install ISO - http://www.xen.org/download/xcp/index.html
Step #2) Plug in your USB stick (the rest assumes the drive is assigned
a letter of D:)
Step #3a) Run YUMI
Step #3b) Agree to the license Agreement
Step #3c) Select D: for YUMI Step 1
Step #3d) Select the option ?Try an Unlisted ISO? for YUMI Step 2
Step #3e) Browse to the downloaded XCP ISO from step 1 and select it for
YUMI Step 3
Step #3f) Mash create and wait.

At this point it is going to bloat things a little by having the full
iso on the USB stuck but who cares right?

Step #4) Open the ISO downloaded in Step 1 using your favorite archive
program. (I use 7-zip) Copy the folders packages.main and
packages.transfer-vm to the root of d:\ and finally copy the file
XS-REPOSITORY-LIST to the root of D:\

Step #5) PROFIT?

From: xen-api-bounces@xxxxxxxxxxxxx [xen-api-bounces@xxxxxxxxxxxxx] On
Behalf Of Ian Campbell [Ian.Campbell@xxxxxxxxxx]
Sent: Friday, June 22, 2012 7:04 AM
To: Mike McClurg
Cc: xen-api@xxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxx; Eric
Subject: Re: [Xen-API] [Xen-users] Installing XCP from USB thumb drive

On Fri, 2012-06-22 at 12:51 +0100, Mike McClurg wrote:
> On 22/06/12 12:18, Anil Madhavapeddy wrote:
> > On 22 Jun 2012, at 12:12, Mike McClurg wrote:
> >
> >> On 22/06/12 11:59, Ian Campbell wrote:
> >>> On Fri, 2012-06-22 at 11:27 +0100, Mike McClurg wrote:
> >>>> On 21/06/12 00:05, Eric wrote:
> >>>>> Is CD-ROM/DVD-ROM the only way to install XCP?
> >>>>
> >>>> I'm sure you could dd the iso to a thumb drive in the same way you would
> >>>> any other OS.
> >>>
> >>> This depends on the iso having being created with special options though
> >>> -- is that done for XCP isos?
> >>
> >> I have no idea, what options does an ISO need to be created with? Can
> >> you repackage an ISO with those options?
> >
> > If it still exists, packaging.hg creates the XenServer ISO with the correct
> > options for PXE boot. XCP probably uses the same build scripts...are they
> > open-source?
> Those scripts don't contain any license information that I can see, and
> we haven't published them publicly. I'm all for making XCP easier to
> build outside of Citrix, but I don't think that thrusting our build
> system on the world is the right way to do it ;)
> Anyway, here is the blurb that generates the iso:
> mkisofs -joliet -joliet-long -r \
> -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
> -no-emul-boot -boot-load-size 4 -boot-info-table \
> -sort $(MY_OBJ_DIR)/sort.main.list \
> -o $@ $(STAGING_main);
> Does that look like it'll generate a thumb-drive-bootable ISO?

The scripts which create the Debian CD sets use
case "$MKISOFS" in
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-isohybrid-mbr
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-partition_offset 16"
which I think is related to this.

I think it is basically doing isohybrid at creation time instead of post
processing. It seems (and this corresponds with my vague memory of
seeing the discussion on debian-cd) like it needs xorriso rather than
mkisofs (which IIRC is deprecated).


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