[lug:18788] dd not creating bootable ISO files

2023-02-16 Thread sami....@gmail.com
I've customized a Ubuntu 20.04 boot USB instance. The install works fine and is completely automated. I can use dd to create a copy of the USB, that is coy USB to USB. That works fine. However I need to create a file based image of the iso to distribute to users. dd commands copies the

Re: [lug:18788] dd not creating bootable ISO files

2023-02-16 Thread Jeremiah Bess
Can you share the commands you are using leading up to the point where it doesn't work? Jeremiah Bess On Thu, Feb 16, 2023 at 8:53 AM sami@gmail.com wrote: > I've customized a Ubuntu 20.04 boot USB instance. The install works fine > and is completely automated. I can use dd to create a

Re: [lug:18790] dd not creating bootable ISO files

2023-02-16 Thread sami....@gmail.com
I've tried the following, none worked... dd if=/dev/sda1 of=/ubuntu.iso bs=4K mkisofs -o /dev/sda / mkisofs -o /dev/sda1 / Those commands will create a the data o the iso, however the iso does not boot. thanks, On Thursday, February 16, 2023 at 10:54:47 AM UTC-5 Jeremiah Bess wrote: >

Re: [lug:18790] dd not creating bootable ISO files

2023-02-16 Thread Jeremiah Bess
So if your USB device is /dev/sda, the sda1 is just a single partition on that drive. The boot loader is stored in the first blocks at the beginning of the USB drive: sda not sda1 The sda drive is typically the first drive used to boot an OS. So just a note, you probably shouldn't try to create