Gentoo Archives: gentoo-user

From: Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling)
To: marduk@×××××××××××.org, gentoo-user@l.g.o
Subject: Re: [gentoo-user] [OT] Reading, editing and then burning a new ISO image using Gentoo
Date: Thu, 08 May 2008 20:43:26
Message-Id: 482365e8.AZMXo46RloIb4ANA%Joerg.Schilling@fokus.fraunhofer.de
1 >It's a boot (floppy image) that's not part of the ISO filesystem per se.
2 >A quick 'Net search shows you might be able to do this following
3
4 >http://kiss.molteni.net/
5
6 >I tried that on an Open Solaris ISO and got:
7
8 > $ isoinfo -d -i os200805.iso
9 > CD-ROM is in ISO 9660 format
10 > System id: Solaris
11 > Volume id: OpenSolaris-2008-05
12 > Volume set id:
13 > Publisher id:
14 > Data preparer id:
15 > Application id: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER &
16 > CDRECORD CD-R/DVD CREATOR (C) 1993 E.YOUNGDALE (C) 1997
17 > J.PEARSON/J.SCHILLING
18 > Copyright File id:
19 >...
20 > $ dd if=os200805.iso of=boot.img bs=2048 count=4 skip=105
21 > 4+0 records in
22 > 4+0 records out
23 > 8192 bytes (8.2 kB) copied, 6.7118e-05 s, 122 MB/s
24 >
25 > $ file boot.img
26 > boot.img: isolinux Loader
27
28 Caution: the file is much larger and it is most likely not isolinux but
29 Stage 2 from Grub.
30
31 BTW: Nsect == 4 means 2048 Bytes. This is because many BIOS versions
32 will not boot unless the CD looks exactly as broken as a WIN-NT CD:
33
34 See mkisofs man page for more details.....
35
36 ftp://ftp.berlios.de/pub/cdrecord/alpha/
37
38 Jörg
39
40 --
41 EMail:joerg@××××××××××××××××××××××××.de (home) Jörg Schilling D-13353 Berlin
42 js@××××××××××××.de (uni)
43 schilling@××××××××××××××××.de (work) Blog: http://schily.blogspot.com/
44 URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
45 --
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