ISO images don't have valid partition tables

Bug #1556599 reported by KOLANICH
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
kubuntu-meta (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

I have an old PC with non-UEFI BIOS (Phoenix BIOS 6.00PG, coreboot is not available for my mainboard, the BIOS is updated to the latest (2008 year) version) without GPT support. Some years ago, when support for UEFI and GPT had been adopted in Linux distros, troubles with booting from USB flash drive started. I tried a lot of tools (Rufus, Unetbootin, pendrivelinux, dd and startup disk creator), none of them had helped.

If I type
parted path/to/kubuntu-16.04-desktop-amd64.iso
and then
show
 and got
>Model: (file)
>Disk path/to/kubuntu-16.04-desktop-amd64.iso: 6083MB
>Sector size (logical/physical): 2048B/512B
>Partition Table: mac
>Disk Flags:

>Number Start End Size File system Name Flags
> 1 2048B 6143B 4096B Apple
> 2 1511MB 1513MB 2425kB EFI

(I don't know why it writes 6083MB)

fdisk --type=mbr -l ./kubuntu-16.04-desktop-amd64.iso
gives

>Disk ./kubuntu-16.04-desktop-amd64.iso: 1,4 GiB, 1520762880 bytes, 2970240 sectors
>Units: sectors of 1 * 512 = 512 bytes
>Sector size (logical/physical): 512 bytes / 512 bytes
>I/O size (minimum/optimal): 512 bytes / 512 bytes
>Disklabel type: dos
>Disk identifier: 0x7d4bf71d
>
>Device Boot Start End Sectors Size Id Type
>./kubuntu-16.04-desktop-amd64.iso1 * 0 2970239 2970240 1,4G 0 Empty
>./kubuntu-16.04-desktop-amd64.iso2 2950924 2955659 4736 2,3M ef EFI (FAT-12/16/32)

Tags: boot iso
KOLANICH (kolanich)
description: updated
description: updated
KOLANICH (kolanich)
affects: usb-creator (Ubuntu) → kubuntu-meta (Ubuntu)
KOLANICH (kolanich)
description: updated
description: updated
KOLANICH (kolanich)
description: updated
KOLANICH (kolanich)
description: updated
Revision history for this message
Simon Quigley (tsimonq2) wrote :

I'm not sure this is a bug, and I can successfully do this on my machine. Try seeking support on #kubuntu on IRC or by emailing <email address hidden>.

Marking as invalid until there is proof stating otherwise.

Changed in kubuntu-meta (Ubuntu):
status: New → Invalid
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