Re: Dropping businesscard ISO images?!?
On Sunday 15 July 2012 10:15:09 Francesco Poli wrote:
> On Sun, 15 Jul 2012 00:19:42 +0100 Steve McIntyre wrote:
> > On Tue, Jul 10, 2012 at 09:54:11PM +0200, Francesco Poli wrote:
> [...]
Hi,
> I used the network boot method once to install Debian onto a headless
> box (running d-i over the serial console was fun!), but can the network
> boot ISO image be used also when booting from removable media (such as
> CDROM, USB stick, ...)?
I think that all i386 and amd64 images are being equipped with isohybrid MBR,
and will boot from optical drives (due to El Torito) and USB keys (resp. due
to MBR). All kfreebsd-i386 and kfreebsd-amd64 can do that as well, but they
don't, I have no idea why. (Imagine a Big Nag here:)
You can check the presence of isohybrid MBR by inspecting the PVD (Primary
Volume Descriptor) or TOC (Table Of Contents):
$ xorriso -indev debian-testing-amd64-netinst.iso -pvd_info
xorriso 1.2.2 : RockRidge filesystem manipulator, libburnia project.
xorriso : NOTE : ISO image bears MBR with -boot_image any partition_offset=16
...
Boot record : El Torito , ISOLINUX isohybrid MBR pointing to boot image
$ xorriso -indev debian-testing-kfreebsd-amd64-netinst.iso -pvd_info
xorriso 1.2.2 : RockRidge filesystem manipulator, libburnia project.
xorriso : NOTE : Loading ISO image tree from LBA 0
xorriso : UPDATE : 887 nodes read in 1 seconds
xorriso : NOTE : Detected El-Torito boot information which currently is set to
be discarded
Drive current: -indev 'debian-testing-kfreebsd-amd64-netinst.iso'
Media current: stdio file, overwriteable
Media status : is written , is appendable
Boot record : El Torito
Media summary: 1 session, 90282 data blocks, 176m data, 17.1g free
Volume id : 'Debian testing f-amd64 1'
Drive current: -indev 'debian-testing-kfreebsd-amd64-netinst.iso'
PVD address : 16s
Volume Id : Debian testing f-amd64 1
Volume Set Id:
Publisher Id :
Preparer Id : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
LIBISOFS-1.2.2, LIBBURN-1.2.2
App Id :
System Id :
CopyrightFile:
Abstract File:
Biblio File :
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