RE: [SCIENTIFIC-LINUX-USERS] Create bootable ISO that can be copied to a USB key

[EXT-Askew, R W]

Hi Pat
Thanks for the reply

I make a copy of the files from the SL-7.2-DVD-x86_64-2016-01-26.iso in a 
directory.
I delete the packages I don't want.
I copy our application software and kickstart file into the directory.
I modify isolinux/isolinux.cfg to use the kickstart file.
I use mkisofs to create the new ISO

mkisofs -U -J -R -v -T -V PCS -o ../R20.001.iso -b isolinux/isolinux.bin  -c 
isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table .

I burn a DVD from the new ISO which I can boot from and do the install.

When I use dd to create a USB key from the ISO and try to boot from USB key, it 
does not boot.

I have tried adding the "-eltorito-alt-boot -e images/efiboot.img 
-no-emul-boot" options to the mkisofs command with no success.

Bill 

-Original Message-
From: Pat Riehecky [mailto:riehe...@fnal.gov] 
Sent: Thursday, May 24, 2018 1:35 PM
To: EXT-Askew, R W ; 
scientific-linux-us...@listserv.fnal.gov
Subject: Re: [SCIENTIFIC-LINUX-USERS] Create bootable ISO that can be copied to 
a USB key

Hello,

Are you creating the custom iso with pungi or a different tool?

Pat

On 05/24/2018 01:17 PM, Bill wrote:
> I am creating a custom installation ISO using kickstart.  This install ISO is 
> based on SL 7.2.
>
> When I burn a DVD from this ISO I can boot from the DVD and the install menu 
> come up as expected.
>
> When I use dd to copy the ISO to a USB key and try to boot from the USB key 
> the install menu does not appear and the system boots from the hard drive.
>
> I tried using dd to copy the SL7.2 ISO to a USB key.  When I try to boot from 
> this USB key the install menu comes up as expected.
>
> What files on the SL7.2 have to do with booting from the USB key?
>
> Is there a mkisofs option I should be using to make booting USB key work?

-- 
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org

Re: [SCIENTIFIC-LINUX-USERS] Create bootable ISO that can be copied to a USB key

[Kraus, Dave (GE Healthcare)]

Pungi uses isohybrid (from the syslinux package) down in the bowels to do that. 
At least that's what I found when I deconstructed its methodology.

That's how I'm getting a USB-bootable .iso file for our spin, anyway...

The algorithm I'm using is:

mkisofs
isohybrid
implantisomd5

Your mileage may vary...

On 5/24/18, 1:35 PM, "owner-scientific-linux-us...@listserv.fnal.gov on behalf 
of Pat Riehecky"  wrote:

Hello,

Are you creating the custom iso with pungi or a different tool?

Pat

On 05/24/2018 01:17 PM, Bill wrote:
> I am creating a custom installation ISO using kickstart.  This install 
ISO is based on SL 7.2.
>
> When I burn a DVD from this ISO I can boot from the DVD and the install 
menu come up as expected.
>
> When I use dd to copy the ISO to a USB key and try to boot from the USB 
key the install menu does not appear and the system boots from the hard drive.
>
> I tried using dd to copy the SL7.2 ISO to a USB key.  When I try to boot 
from this USB key the install menu comes up as expected.
>
> What files on the SL7.2 have to do with booting from the USB key?
>
> Is there a mkisofs option I should be using to make booting USB key work?

-- 
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org

Re: [SCIENTIFIC-LINUX-USERS] Create bootable ISO that can be copied to a USB key

[Pat Riehecky]

Hello,

Are you creating the custom iso with pungi or a different tool?

Pat

On 05/24/2018 01:17 PM, Bill wrote:

I am creating a custom installation ISO using kickstart.  This install ISO is 
based on SL 7.2.

When I burn a DVD from this ISO I can boot from the DVD and the install menu 
come up as expected.

When I use dd to copy the ISO to a USB key and try to boot from the USB key the 
install menu does not appear and the system boots from the hard drive.

I tried using dd to copy the SL7.2 ISO to a USB key.  When I try to boot from 
this USB key the install menu comes up as expected.

What files on the SL7.2 have to do with booting from the USB key?

Is there a mkisofs option I should be using to make booting USB key work?


--
Pat Riehecky

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org