making an ISO image

[Glenn / Lenny]

Hi,
I have been trying several different programs including the DD command, and either the program seems inaccessible with Orca, or I was not able to place my image to be, into another drive.
I am running Ubuntu from a live version on an 8GB card.
I have a bootable USB 16GB thumb drive that I want to make into an ISO image on /dev/sda2.
/dev/sda2 is where my old Ubuntu lives, and I cannot boot to, as grub got messed up, and I just fixed the MBR so I could at least boot into Windows on that system.
On a side note, I tried fixing GRUB with no luck, so I will just get a larger drive and reinstall everything, and copy out  files from that drive when I replace it.
In the meantime, if I do get GRUB working again, this making an ISO image would be easier, because in one program I was using, it would only allow me to make an ISO of the USB drive into a directory of this live boot disk, which is only 8GB.
The boot disk I am wanting to make a copy of is /dev/sdb
So with DD, I tried:
sudo dd if=/dev/sdb of=/dev/sda2/home/Downloads
And I even tried it directly into /dev/sda2
and I tried all commands with giving the ISO a file name at the end, like /dev/sda2/usb-image.iso
I tried it with acetoneiso and it gave me the same errors as DD did.
I tried k3b and genisoimage, and a couple others.
I would even write it to a folder on /sda1 if possible, which is an NTFS partition.

Thanks for any ideas.
Glenn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-accessibility/attachments/20160806/5fdc3bc2/attachment.html>