Gentoo Archives: gentoo-user

From: Mick <michaelkintzios@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] having problems getting burned cds to work
Date: Tue, 26 May 2015 18:26:24
Message-Id: 201505261926.10068.michaelkintzios@gmail.com
In Reply to: Re: [gentoo-user] having problems getting burned cds to work by Neil Bothwick
1 On Tuesday 26 May 2015 13:21:56 Neil Bothwick wrote:
2 > On Tue, 26 May 2015 06:17:03 -0400, covici@××××××××××.com wrote:
3 > > > What does "isoinfo -d -i /path/to/file.iso" say about it?
4 > >
5 > > No, udf says no partition or some such, and iso-info gives
6 > >
7 > > ISO 9660 image: /audio/grml/grml64-full_2014.11.iso
8 > > Preparer : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
9 > > LIBISOFS-1.2.2, LIBBURN-1.2.2
10 > > Publisher : grml-live | grml.org
11 > > Volume : grml64-full 2014.11
12 > > Joliet Level: 3
13 >
14 > isoinfo, not iso-info. The former gives more information.
15
16 Also, confirm that a)the downloaded iso file and b)the CD is not corrupt. For
17 the iso file run:
18
19 sha1sum somefile.iso
20
21 and check that it matches the sha1 checksum published at the website.
22
23 For the CD run:
24
25 ls -l somefile.iso
26
27 to find how big the is file, for example 650,000,000 bytes. Then run:
28
29 dd if=/dev/sr0 bs=2048 count=650000000 | sha1sum
30
31 (This is necessary to exclude any code after the end of the iso content which
32 the cdrecord will write on the CD to close the recording session).
33
34 Even if a sha1 or md5 hash is not available from the website, you can at least
35 compare the two hashes between the iso file and the CD.
36
37 --
38 Regards,
39 Mick

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Re: [gentoo-user] having problems getting burned cds to work covici@××××××××××.com