Re: can this iso be put on a micro-sd

[gene heskett <gheskett@shentel.net>]

On 8/4/24 09:40, Thomas Schmitt wrote:
> Hi,
>
> Gene Heskett wrote:
> > /dev/sdl2       7783552 7798783   15232  7.4M ef EFI (FAT-12/16/32)
> > Now, that looks like something that might boot an intel system,
>
> Or on one of the other systems with EFI firmware.
> EFI boot program names are defined for 32-bit and for 64-bit ARM CPUs.
> But - as you meanwhile pointed out - there are ARM systems without EFI.
>
>
> > Now power it down, pull the card and put it back in the reader, and write
> > the armbian server .img file to it.
> > /dev/sdl1        8192 4161535 4153344   2G 83 Linux
>
> Are there any files matching "start*.elf" to see in that filesystem ?
>
>    find ...where.it.is.mounted... -name 'start*.elf'
>
> If so, then you may hope that the Debian Raspberry .img.xz and armbian
> are following a similar boot path.
>
>
> > So the $64,000 question is: where do I get a genuine debian-arm64 .img that
> > will boot a pi clone using the arm bootp protocol.
>
> The Debian wiki
>
>    https://wiki.debian.org/RaspberryPi
>
> does not talk of "bootp" but points to the promising download page
>
>    https://raspi.debian.net/tested-images/
>
> and to descriptions of particular versions like
>
>    https://wiki.debian.org/RaspberryPi4
>
> which talks of
>    "Current status (2024-07)"
> So it is actively maintained.
> ... and it has lots of detail and links to interesting tangents.
>
>
> George at Clug wrote:
> > > If the aim is to make a bootable USB then I like to use:
> > > # cp debian-12.6.0-arm64-DVD-1.iso /dev/sdl
>
> > Dammit, people, I am NOT making a bootable /usb device/,
>
> Seen from Linux userland, a USB stick and a SD card behave the same,
> namely like conventional hard disks. After all you see yours as /dev/sdl,
> a disk device operated by SCSI commands.
> Insofar the advise is correct for your case.
Except it does not work, no disk activity, & no boot.  And I've tried 
debian-arm all the way back to jessie over the years. But cleaned that 
directory out yesterday.
> Any differences between usual USB sticks and your storage device have for
> now to be considered red herrings.

Once booted, absolutely true. Keywords "once booted"...
> The obvious problem is that your system has no EFI but the Debian arm64
> ISO aims at EFI as boot firmware.

Which I can't get away from on wintel stuff, but have rather studiously 
avoided it on the arms. I don't need any help from micro$haft to screw 
things up, I can do a fine job of that all by myself.

I need to get amanda running, so I'll do it on ubuntu's noble server 
.img.  If debian can't or won't support me on this, I'm also subbed to 
ubuntu's list.

> Have a nice day :)

Making some progress on this would make it a very nice day.
> Thomas
Thank you Thomas. Take care & stay well yourself.
> .

Cheers, Gene Heskett, CET.
--
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