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Groups > linux.debian.user > #162386
| From | "Thomas Schmitt" <scdbackup@gmx.net> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Putting It All On a Stick |
| Date | 2015-12-31 18:00 +0100 |
| Message-ID | <qLOJZ-6Ul-23@gated-at.bofh.it> (permalink) |
| References | <qLO7f-6GS-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi,
Steve Matzura wrote:
> How would I know for sure if it's ISO hybrid,
A strong indication is the presence of partitions when inquired
by program fdisk.
$ /sbin/fdisk -l debian-8.2.0-amd64-BD-1.iso
...
debian-8.2.0-amd64-BD-1.iso1 * 0 43859651 ...
...
You may let xorriso report
$ xorriso -indev debian-8.2.0-amd64-BD-1.iso -toc 2>&1 | \
grep '^Boot record :'
Depending on the version you will get
Boot record : El Torito , ISOLINUX boot image capable of isohybrid
or
Boot record : El Torito , ISOLINUX isohybrid MBR pointing to boot image
or
Boot record : El Torito , MBR isohybrid cyl-align-off GPT APM
The first message (from xorriso-1.2.2) indicates isohybrid only if
fdisk reports about partitions in the ISO.
The younger versions 1.3.2 (Debian stable) and 1.4.2 (Sid) can
tell without help by others.
xorriso-1.4.2 can list the whole boot equipment
$ xorriso -indev debian-8.2.0-amd64-BD-1.iso \
-report_system_area plain -report_el_torito plain
which will report
...
Boot record : El Torito , MBR isohybrid cyl-align-off GPT APM
Media summary: 1 session, 10964913 data blocks, 20.9g data, 750g free
Volume id : 'Debian 8.2.0 amd64 1'
System area options: 0x00000202
System area summary: MBR isohybrid cyl-align-off GPT APM
ISO image size/512 : 43859652
Partition offset : 0
MBR heads per cyl : 0
MBR secs per head : 0
MBR partition table: N Status Type Start Blocks
MBR partition : 1 0x80 0x00 0 43859652
MBR partition : 2 0x00 0xef 75632 832
MBR partition path : 2 /boot/grub/efi.img
GPT : N Info
GPT disk GUID : e68c59d8e9e83949b42975afc9d12f0f
GPT entry array : 12 208 overlapping
GPT lba range : 64 43859598 43859651
GPT partition name : 1 490053004f00480079006200720069006400
GPT partname local : 1 ISOHybrid
GPT partition GUID : 1 e68c59d8e9e83949b42b75afc9d12f0f
GPT type GUID : 1 a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags: 1 0x1000000000000001
GPT start and size : 1 0 43859596
GPT partition name : 2 490053004f004800790062007200690064003100
GPT partname local : 2 ISOHybrid1
GPT partition GUID : 2 e68c59d8e9e83949b42a75afc9d12f0f
GPT type GUID : 2 a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags: 2 0x1000000000000001
GPT start and size : 2 75632 832
GPT partition path : 2 /boot/grub/efi.img
APM : N Info
APM block size : 2048
APM gap fillers : 0
APM partition name : 1 EFI
APM partition type : 1 Apple_HFS
APM start and size : 1 18908 208
APM partition path : 1 /boot/grub/efi.img
El Torito catalog : 18907 1
El Torito cat path : /isolinux/boot.cat
El Torito images : N Pltf B Emul Ld_seg Hdpt Ldsiz LBA
El Torito boot img : 1 BIOS y none 0x0000 0x00 4 19116
El Torito boot img : 2 UEFI y none 0x0000 0x00 832 18908
El Torito img path : 1 /isolinux/isolinux.bin
El Torito img opts : 1 boot-info-table isohybrid-suitable
El Torito img path : 2 /boot/grub/efi.img
> and how would it fit on a standard 16GB drive?
It would not. If you cut of the tail you will get i/o errors when
files shall be read which are stored in the cut-off part.
The files are not sorted by importance or popularity in the ISO.
> I strongly suspect that's true
> because the temp file that was created as soon as the process started
> was expanded to 20.9GB and never changed, so it's probably full of a
> lot of 0's toward the end.
No. It is packed full with compressed .deb files (and a few others).
In the beginning of Jigdo download the 20+ GB mainly consists of holes,
indeed. But the dowloading of .deb files fills each of the holes.
Jigdo = Jigsaw puzzle Download
The .template file is like the wooden frame for a kindergarten jigsaw toy.
The .deb files (and some others) are the wooden blocks which fit into
the holes.
The .jigdo file substitutes for the toddler's brain.
http://lcdn.jigsawpuzzleshoppe.com/media/easyslide/wooden-jigsaw-puzzles.png
Have a nice day :)
Thomas
Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-29 22:30 +0100
Re: Putting It All On a Stick "Andrew M.A. Cater" <amacater@galactic.demon.co.uk> - 2015-12-29 22:40 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 03:00 +0100
Re: Putting It All On a Stick Rick Thomas <rbthomas@pobox.com> - 2015-12-30 05:40 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 15:00 +0100
Re: Putting It All On a Stick <tomas@tuxteam.de> - 2015-12-30 10:50 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 15:10 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 16:30 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 16:40 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 16:50 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 19:50 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 16:40 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 18:30 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 19:00 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 19:20 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 19:30 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 20:00 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 20:40 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 20:50 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 21:00 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 20:50 +0100
Re: Putting It All On a Stick Joe <joe@jretrading.com> - 2015-12-30 21:40 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-31 00:10 +0100
Re: Putting It All On a Stick Joe <joe@jretrading.com> - 2015-12-31 10:30 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-31 11:30 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 16:30 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 17:10 +0100
Re: Putting It All On a Stick Richard Owlett <rowlett@cloud85.net> - 2016-01-01 16:40 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 21:30 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-30 22:20 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2015-12-30 22:40 +0100
Re: Putting It All On a Stick Rick Thomas <rbthomas@pobox.com> - 2015-12-31 02:20 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2015-12-31 10:20 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 16:50 +0100
Re: Putting It All On a Stick Richard Owlett <rowlett@cloud85.net> - 2016-01-01 15:20 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 16:30 +0100
Re: Putting It All On a Stick Joe <joe@jretrading.com> - 2015-12-31 16:50 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 17:10 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2015-12-31 17:30 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 18:00 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2015-12-31 18:20 +0100
Re: Putting It All On a Stick Eduard Bloch <edi@gmx.de> - 2015-12-31 19:20 +0100
Re: Putting It All On a Stick John Hasler <jhasler@newsguy.com> - 2015-12-31 19:30 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2016-01-01 11:40 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 18:30 +0100
Re: Putting It All On a Stick <tomas@tuxteam.de> - 2015-12-31 19:00 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 20:20 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 16:40 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 17:20 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 17:50 +0100
Re: Putting It All On a Stick Steve Matzura <sm@noisynotes.com> - 2015-12-31 18:00 +0100
Re: Putting It All On a Stick Rick Thomas <rbthomas@pobox.com> - 2016-01-02 22:00 +0100
Re: Putting It All On a Stick "Thomas Schmitt" <scdbackup@gmx.net> - 2015-12-31 18:00 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 17:20 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 20:40 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 21:00 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-31 00:10 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-31 00:20 +0100
Re: Putting It All On a Stick Chris Bannister <cbannister@slingshot.co.nz> - 2016-01-01 16:20 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2016-01-01 17:20 +0100
Re: Putting It All On a Stick Chris Bannister <cbannister@slingshot.co.nz> - 2016-01-06 15:00 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2016-01-06 16:50 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2016-01-06 20:30 +0100
Re: Putting It All On a Stick Rick Thomas <rbthomas@pobox.com> - 2015-12-30 21:00 +0100
Re: Putting It All On a Stick Brian <ad44@cityscape.co.uk> - 2015-12-30 22:00 +0100
Re: Putting It All On a Stick Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-30 19:50 +0100
Re: Putting It All On a Stick <tomas@tuxteam.de> - 2015-12-30 16:50 +0100
Re: Putting It All On a Stick Richard Owlett <rowlett@cloud85.net> - 2015-12-30 18:00 +0100
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