* [gentoo-user] having problems getting burned cds to work
@ 2015-05-26 2:27 covici
2015-05-26 5:25 ` bitlord
0 siblings, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 2:27 UTC (permalink / raw
To: gentoo-user
Hi. I am trying to burn an iso image to a cd (maybe its actually a dvd
disk), and it boots without any errors, and I can mount the iso with the
loop option, but if I try to mount the cd, it complains about ufs file
systems, and if I try to mount with -t iso9660, it just says bad file
type or bad superblock and the disk is unusable. Nothing interesting in
the logs, it just says the same about ufs and nothing about iso9660.
I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
unstable version of gentoo.
Any assistance would be appreciated.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 2:27 [gentoo-user] having problems getting burned cds to work covici
@ 2015-05-26 5:25 ` bitlord
2015-05-26 5:36 ` Dale
0 siblings, 1 reply; 18+ messages in thread
From: bitlord @ 2015-05-26 5:25 UTC (permalink / raw
To: gentoo-user
On Mon, 25 May 2015 22:27:39 -0400
covici@ccs.covici.com wrote:
> Hi. I am trying to burn an iso image to a cd (maybe its actually a
> dvd disk), and it boots without any errors, and I can mount the iso
> with the loop option, but if I try to mount the cd, it complains
> about ufs file systems, and if I try to mount with -t iso9660, it
> just says bad file type or bad superblock and the disk is unusable.
> Nothing interesting in the logs, it just says the same about ufs and
> nothing about iso9660.
>
> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
> unstable version of gentoo.
>
> Any assistance would be appreciated.
>
Sorry, I know nothing about standards, optical media and filesystems,
and don't understand how it works, once I had some issues with mounting
optical media, also missing a filesystem which I fixed with enabling
CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying,
but it is too much for me, if I understand it correctly it is not just
what is written to the media but also how (different modes, for adding
more data later ...), so may be some option while burning media that
allows you to use free space left on the disk.
If this is not useful just ignore it. ;-)
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 5:25 ` bitlord
@ 2015-05-26 5:36 ` Dale
2015-05-26 5:47 ` covici
2015-05-26 7:04 ` covici
0 siblings, 2 replies; 18+ messages in thread
From: Dale @ 2015-05-26 5:36 UTC (permalink / raw
To: gentoo-user
bitlord wrote:
> On Mon, 25 May 2015 22:27:39 -0400
> covici@ccs.covici.com wrote:
>
>> Hi. I am trying to burn an iso image to a cd (maybe its actually a
>> dvd disk), and it boots without any errors, and I can mount the iso
>> with the loop option, but if I try to mount the cd, it complains
>> about ufs file systems, and if I try to mount with -t iso9660, it
>> just says bad file type or bad superblock and the disk is unusable.
>> Nothing interesting in the logs, it just says the same about ufs and
>> nothing about iso9660.
>>
>> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
>> unstable version of gentoo.
>>
>> Any assistance would be appreciated.
>>
> Sorry, I know nothing about standards, optical media and filesystems,
> and don't understand how it works, once I had some issues with mounting
> optical media, also missing a filesystem which I fixed with enabling
> CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying,
> but it is too much for me, if I understand it correctly it is not just
> what is written to the media but also how (different modes, for adding
> more data later ...), so may be some option while burning media that
> allows you to use free space left on the disk.
> If this is not useful just ignore it. ;-)
>
>
Same boat here. From what I understand, if it is more than 2GBs, it
needs UDF support. No idea if that applies to ISOs to tho.
Dale
:-) :-)
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 5:36 ` Dale
@ 2015-05-26 5:47 ` covici
2015-05-26 8:08 ` Neil Bothwick
2015-05-26 7:04 ` covici
1 sibling, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 5:47 UTC (permalink / raw
To: gentoo-user
Dale <rdalek1967@gmail.com> wrote:
> bitlord wrote:
> > On Mon, 25 May 2015 22:27:39 -0400
> > covici@ccs.covici.com wrote:
> >
> >> Hi. I am trying to burn an iso image to a cd (maybe its actually a
> >> dvd disk), and it boots without any errors, and I can mount the iso
> >> with the loop option, but if I try to mount the cd, it complains
> >> about ufs file systems, and if I try to mount with -t iso9660, it
> >> just says bad file type or bad superblock and the disk is unusable.
> >> Nothing interesting in the logs, it just says the same about ufs and
> >> nothing about iso9660.
> >>
> >> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
> >> unstable version of gentoo.
> >>
> >> Any assistance would be appreciated.
> >>
> > Sorry, I know nothing about standards, optical media and filesystems,
> > and don't understand how it works, once I had some issues with mounting
> > optical media, also missing a filesystem which I fixed with enabling
> > CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying,
> > but it is too much for me, if I understand it correctly it is not just
> > what is written to the media but also how (different modes, for adding
> > more data later ...), so may be some option while burning media that
> > allows you to use free space left on the disk.
> > If this is not useful just ignore it. ;-)
> >
> >
>
> Same boat here. From what I understand, if it is more than 2GBs, it
> needs UDF support. No idea if that applies to ISOs to tho.
But its an iso, and I can mount the .iso via loop, why should it care
about udf support and I think udf is trying to read the cd, because its
apparently not thinking its an iso9660 file system.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 5:36 ` Dale
2015-05-26 5:47 ` covici
@ 2015-05-26 7:04 ` covici
2015-05-26 7:25 ` Dale
2015-05-26 7:33 ` Heiko Baums
1 sibling, 2 replies; 18+ messages in thread
From: covici @ 2015-05-26 7:04 UTC (permalink / raw
To: gentoo-user
Dale <rdalek1967@gmail.com> wrote:
> bitlord wrote:
> > On Mon, 25 May 2015 22:27:39 -0400
> > covici@ccs.covici.com wrote:
> >
> >> Hi. I am trying to burn an iso image to a cd (maybe its actually a
> >> dvd disk), and it boots without any errors, and I can mount the iso
> >> with the loop option, but if I try to mount the cd, it complains
> >> about ufs file systems, and if I try to mount with -t iso9660, it
> >> just says bad file type or bad superblock and the disk is unusable.
> >> Nothing interesting in the logs, it just says the same about ufs and
> >> nothing about iso9660.
> >>
> >> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
> >> unstable version of gentoo.
> >>
> >> Any assistance would be appreciated.
> >>
> > Sorry, I know nothing about standards, optical media and filesystems,
> > and don't understand how it works, once I had some issues with mounting
> > optical media, also missing a filesystem which I fixed with enabling
> > CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying,
> > but it is too much for me, if I understand it correctly it is not just
> > what is written to the media but also how (different modes, for adding
> > more data later ...), so may be some option while burning media that
> > allows you to use free space left on the disk.
> > If this is not useful just ignore it. ;-)
> >
> >
>
> Same boat here. From what I understand, if it is more than 2GBs, it
> needs UDF support. No idea if that applies to ISOs to tho.
OK, I have a bit more info, I managed to burn the CD on another box and
when I tried to mount it using this drive, it gave me in the logs
May 26 02:41:59 ccs.covici.com kernel: end_request: I/O error, dev sr0,
sector 942680
May 26 02:41:59 ccs.covici.com kernel: Buffer I/O error on device sr0,
logical block 117835
May 26 02:42:00 ccs.covici.com kernel: end_request: I/O error, dev sr0,
sector 942680
May 26 02:42:00 ccs.covici.com kernel: Buffer I/O error on device sr0,
logical block 117835
but it did mount successfully! and I did a diff against the same iso
mounted via -o loop and there were no differences.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 7:04 ` covici
@ 2015-05-26 7:25 ` Dale
2015-05-26 7:33 ` Heiko Baums
1 sibling, 0 replies; 18+ messages in thread
From: Dale @ 2015-05-26 7:25 UTC (permalink / raw
To: gentoo-user
covici@ccs.covici.com wrote:
> Dale <rdalek1967@gmail.com> wrote:
>
>> bitlord wrote:
>>> On Mon, 25 May 2015 22:27:39 -0400
>>> covici@ccs.covici.com wrote:
>>>
>>>> Hi. I am trying to burn an iso image to a cd (maybe its actually a
>>>> dvd disk), and it boots without any errors, and I can mount the iso
>>>> with the loop option, but if I try to mount the cd, it complains
>>>> about ufs file systems, and if I try to mount with -t iso9660, it
>>>> just says bad file type or bad superblock and the disk is unusable.
>>>> Nothing interesting in the logs, it just says the same about ufs and
>>>> nothing about iso9660.
>>>>
>>>> I am using cdrecord from cdrtools-3.01_alpha28 and I am running the
>>>> unstable version of gentoo.
>>>>
>>>> Any assistance would be appreciated.
>>>>
>>> Sorry, I know nothing about standards, optical media and filesystems,
>>> and don't understand how it works, once I had some issues with mounting
>>> optical media, also missing a filesystem which I fixed with enabling
>>> CONFIG_UDF_FS in kernel. I tried to read about UDF... before replying,
>>> but it is too much for me, if I understand it correctly it is not just
>>> what is written to the media but also how (different modes, for adding
>>> more data later ...), so may be some option while burning media that
>>> allows you to use free space left on the disk.
>>> If this is not useful just ignore it. ;-)
>>>
>>>
>> Same boat here. From what I understand, if it is more than 2GBs, it
>> needs UDF support. No idea if that applies to ISOs to tho.
> OK, I have a bit more info, I managed to burn the CD on another box and
> when I tried to mount it using this drive, it gave me in the logs
> May 26 02:41:59 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> sector 942680
> May 26 02:41:59 ccs.covici.com kernel: Buffer I/O error on device sr0,
> logical block 117835
> May 26 02:42:00 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> sector 942680
> May 26 02:42:00 ccs.covici.com kernel: Buffer I/O error on device sr0,
> logical block 117835
> but it did mount successfully! and I did a diff against the same iso
> mounted via -o loop and there were no differences.
>
There is a CD/DVD guru on here that will likely know what's going wrong,
whether it is a burn issue or a person in the keyboard issue. Hang
tight. I'm sure he will be along soon.
Dale
:-) :-)
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 7:04 ` covici
2015-05-26 7:25 ` Dale
@ 2015-05-26 7:33 ` Heiko Baums
2015-05-26 10:12 ` covici
1 sibling, 1 reply; 18+ messages in thread
From: Heiko Baums @ 2015-05-26 7:33 UTC (permalink / raw
To: gentoo-user
Am 26.05.2015 um 09:04 schrieb covici@ccs.covici.com:
> OK, I have a bit more info, I managed to burn the CD on another box and
> when I tried to mount it using this drive, it gave me in the logs
> May 26 02:41:59 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> sector 942680
> May 26 02:41:59 ccs.covici.com kernel: Buffer I/O error on device sr0,
> logical block 117835
> May 26 02:42:00 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> sector 942680
> May 26 02:42:00 ccs.covici.com kernel: Buffer I/O error on device sr0,
> logical block 117835
> but it did mount successfully! and I did a diff against the same iso
> mounted via -o loop and there were no differences.
There are several possibilities which come to my mind.
Regardless of whether the image can be loop mounted or not, have you
tried to download it again - maybe from another mirror - or have you
checked the MD5 or SHAxxx checksums of the downloaded iso? Maybe the
file is corrupt.
Have you tried to burn it onto another blank DVD from a different
manufacturer? Maybe your blank DVDs don't work well together with your
DVD writer.
Have you checked that you have built every necessary kernel module?
Maybe your missing one like the mentioned UDF module or a hardware
(drive/bus) related module.
I guess with "this drive" you mean the drive in the other box? Otherwise
the drive could be faulty.
Have you checked the cables?
Or in case of a bug in cdrecord, have you tried to downgrade cdrtools?
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 5:47 ` covici
@ 2015-05-26 8:08 ` Neil Bothwick
2015-05-26 10:17 ` covici
0 siblings, 1 reply; 18+ messages in thread
From: Neil Bothwick @ 2015-05-26 8:08 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 733 bytes --]
On Tue, 26 May 2015 01:47:50 -0400, covici@ccs.covici.com wrote:
> > Same boat here. From what I understand, if it is more than 2GBs, it
> > needs UDF support. No idea if that applies to ISOs to tho.
>
> But its an iso, and I can mount the .iso via loop, why should it care
> about udf support and I think udf is trying to read the cd, because its
> apparently not thinking its an iso9660 file system.
Just because it is an image file with a .iso extension does not mean it
uses the iso9600 filesystem. DVDs do use UDF. Can you mount it with -t
udf.
What does "isoinfo -d -i /path/to/file.iso" say about it?
--
Neil Bothwick
Electrocution, n.:
Burning at the stake with all the modern improvements.
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 7:33 ` Heiko Baums
@ 2015-05-26 10:12 ` covici
2015-05-26 13:06 ` [gentoo-user] " James
0 siblings, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 10:12 UTC (permalink / raw
To: gentoo-user
Heiko Baums <lists@baums-on-web.de> wrote:
> Am 26.05.2015 um 09:04 schrieb covici@ccs.covici.com:
> > OK, I have a bit more info, I managed to burn the CD on another box and
> > when I tried to mount it using this drive, it gave me in the logs
> > May 26 02:41:59 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> > sector 942680
> > May 26 02:41:59 ccs.covici.com kernel: Buffer I/O error on device sr0,
> > logical block 117835
> > May 26 02:42:00 ccs.covici.com kernel: end_request: I/O error, dev sr0,
> > sector 942680
> > May 26 02:42:00 ccs.covici.com kernel: Buffer I/O error on device sr0,
> > logical block 117835
> > but it did mount successfully! and I did a diff against the same iso
> > mounted via -o loop and there were no differences.
>
> There are several possibilities which come to my mind.
>
> Regardless of whether the image can be loop mounted or not, have you
> tried to download it again - maybe from another mirror - or have you
> checked the MD5 or SHAxxx checksums of the downloaded iso? Maybe the
> file is corrupt.
>
> Have you tried to burn it onto another blank DVD from a different
> manufacturer? Maybe your blank DVDs don't work well together with your
> DVD writer.
>
> Have you checked that you have built every necessary kernel module?
> Maybe your missing one like the mentioned UDF module or a hardware
> (drive/bus) related module.
>
> I guess with "this drive" you mean the drive in the other box? Otherwise
> the drive could be faulty.
>
> Have you checked the cables?
I have not checked the hardware, but I did burn the image on another
system with another drive and mounted it with the drive in question and
as I said, even though I got those errors, the mount was successful.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 8:08 ` Neil Bothwick
@ 2015-05-26 10:17 ` covici
2015-05-26 12:21 ` Neil Bothwick
0 siblings, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 10:17 UTC (permalink / raw
To: gentoo-user
Neil Bothwick <neil@digimed.co.uk> wrote:
> On Tue, 26 May 2015 01:47:50 -0400, covici@ccs.covici.com wrote:
>
> > > Same boat here. From what I understand, if it is more than 2GBs, it
> > > needs UDF support. No idea if that applies to ISOs to tho.
> >
> > But its an iso, and I can mount the .iso via loop, why should it care
> > about udf support and I think udf is trying to read the cd, because its
> > apparently not thinking its an iso9660 file system.
>
> Just because it is an image file with a .iso extension does not mean it
> uses the iso9600 filesystem. DVDs do use UDF. Can you mount it with -t
> udf.
>
> What does "isoinfo -d -i /path/to/file.iso" say about it?
>
No, udf says no partition or some such, and iso-info gives
ISO 9660 image: /audio/grml/grml64-full_2014.11.iso
Preparer : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
LIBISOFS-1.2.2, LIBBURN-1.2.2
Publisher : grml-live | grml.org
Volume : grml64-full 2014.11
Joliet Level: 3
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 10:17 ` covici
@ 2015-05-26 12:21 ` Neil Bothwick
2015-05-26 18:25 ` Mick
0 siblings, 1 reply; 18+ messages in thread
From: Neil Bothwick @ 2015-05-26 12:21 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 592 bytes --]
On Tue, 26 May 2015 06:17:03 -0400, covici@ccs.covici.com wrote:
> > What does "isoinfo -d -i /path/to/file.iso" say about it?
> >
>
> No, udf says no partition or some such, and iso-info gives
>
> ISO 9660 image: /audio/grml/grml64-full_2014.11.iso
> Preparer : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
> LIBISOFS-1.2.2, LIBBURN-1.2.2
> Publisher : grml-live | grml.org
> Volume : grml64-full 2014.11
> Joliet Level: 3
isoinfo, not iso-info. The former gives more information.
--
Neil Bothwick
Every morning is the dawn of a new error...
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^ permalink raw reply [flat|nested] 18+ messages in thread
* [gentoo-user] Re: having problems getting burned cds to work
2015-05-26 10:12 ` covici
@ 2015-05-26 13:06 ` James
2015-05-26 13:53 ` covici
0 siblings, 1 reply; 18+ messages in thread
From: James @ 2015-05-26 13:06 UTC (permalink / raw
To: gentoo-user
<covici <at> ccs.covici.com> writes:
> I have not checked the hardware, but I did burn the image on another
> system with another drive and mounted it with the drive in question and
> as I said, even though I got those errors, the mount was successful.
It might be a good test to check with other software?
app-cdr/xfburn
Description: GTK+ based CD and DVD burning application
hth,
James
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] Re: having problems getting burned cds to work
2015-05-26 13:06 ` [gentoo-user] " James
@ 2015-05-26 13:53 ` covici
2015-05-26 18:40 ` Heiko Baums
0 siblings, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 13:53 UTC (permalink / raw
To: gentoo-user
James <wireless@tampabay.rr.com> wrote:
> <covici <at> ccs.covici.com> writes:
>
>
> > I have not checked the hardware, but I did burn the image on another
> > system with another drive and mounted it with the drive in question and
> > as I said, even though I got those errors, the mount was successful.
>
> It might be a good test to check with other software?
>
>
>
> app-cdr/xfburn
>
> Description: GTK+ based CD and DVD burning application
Hmmm, well I tried this and it was successful, so I wonder what is going
on with cdrecorder? They had something called stream-record in that
program which I don't know what that means. Also, I logged in as root
which is normally how I have always burned cds, any way aside from
marking xfburn as suid root which I would prefer not to do to use the
program as a normal user? I never would have thought this would work,
but I thought I would try and it did function -- I hope George (I think
that is his name) will get on here and enlighten us all.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 12:21 ` Neil Bothwick
@ 2015-05-26 18:25 ` Mick
2015-05-26 19:03 ` covici
0 siblings, 1 reply; 18+ messages in thread
From: Mick @ 2015-05-26 18:25 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: Text/Plain, Size: 1274 bytes --]
On Tuesday 26 May 2015 13:21:56 Neil Bothwick wrote:
> On Tue, 26 May 2015 06:17:03 -0400, covici@ccs.covici.com wrote:
> > > What does "isoinfo -d -i /path/to/file.iso" say about it?
> >
> > No, udf says no partition or some such, and iso-info gives
> >
> > ISO 9660 image: /audio/grml/grml64-full_2014.11.iso
> > Preparer : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
> > LIBISOFS-1.2.2, LIBBURN-1.2.2
> > Publisher : grml-live | grml.org
> > Volume : grml64-full 2014.11
> > Joliet Level: 3
>
> isoinfo, not iso-info. The former gives more information.
Also, confirm that a)the downloaded iso file and b)the CD is not corrupt. For
the iso file run:
sha1sum somefile.iso
and check that it matches the sha1 checksum published at the website.
For the CD run:
ls -l somefile.iso
to find how big the is file, for example 650,000,000 bytes. Then run:
dd if=/dev/sr0 bs=2048 count=650000000 | sha1sum
(This is necessary to exclude any code after the end of the iso content which
the cdrecord will write on the CD to close the recording session).
Even if a sha1 or md5 hash is not available from the website, you can at least
compare the two hashes between the iso file and the CD.
--
Regards,
Mick
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] Re: having problems getting burned cds to work
2015-05-26 13:53 ` covici
@ 2015-05-26 18:40 ` Heiko Baums
2015-05-26 19:08 ` covici
0 siblings, 1 reply; 18+ messages in thread
From: Heiko Baums @ 2015-05-26 18:40 UTC (permalink / raw
To: gentoo-user
Am 26.05.2015 um 15:53 schrieb covici@ccs.covici.com:
> Hmmm, well I tried this and it was successful, so I wonder what is going
> on with cdrecorder?
So you probably have found a bug in cdrecord. Have you tried to
downgrade cdrtools to check if it works with previous, preferentially
stable releases?
> Also, I logged in as root
> which is normally how I have always burned cds, any way aside from
> marking xfburn as suid root which I would prefer not to do to use the
> program as a normal user?
It's usually not necessary to burn a CD as root or give xfburn suid
root. This leads to the next questions. Have you set the correct file
permissions for /dev/sr0 (particularly user and group)? Should be
root:cdrom. And is your user in the corresponding group (usually the
group cdrom)?
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] having problems getting burned cds to work
2015-05-26 18:25 ` Mick
@ 2015-05-26 19:03 ` covici
0 siblings, 0 replies; 18+ messages in thread
From: covici @ 2015-05-26 19:03 UTC (permalink / raw
To: gentoo-user
Mick <michaelkintzios@gmail.com> wrote:
> On Tuesday 26 May 2015 13:21:56 Neil Bothwick wrote:
> > On Tue, 26 May 2015 06:17:03 -0400, covici@ccs.covici.com wrote:
> > > > What does "isoinfo -d -i /path/to/file.iso" say about it?
> > >
> > > No, udf says no partition or some such, and iso-info gives
> > >
> > > ISO 9660 image: /audio/grml/grml64-full_2014.11.iso
> > > Preparer : XORRISO-1.2.2 2012.04.02.133001, LIBISOBURN-1.2.2,
> > > LIBISOFS-1.2.2, LIBBURN-1.2.2
> > > Publisher : grml-live | grml.org
> > > Volume : grml64-full 2014.11
> > > Joliet Level: 3
> >
> > isoinfo, not iso-info. The former gives more information.
>
> Also, confirm that a)the downloaded iso file and b)the CD is not corrupt. For
> the iso file run:
>
> sha1sum somefile.iso
>
> and check that it matches the sha1 checksum published at the website.
>
> For the CD run:
>
> ls -l somefile.iso
>
> to find how big the is file, for example 650,000,000 bytes. Then run:
>
> dd if=/dev/sr0 bs=2048 count=650000000 | sha1sum
>
> (This is necessary to exclude any code after the end of the iso content which
> the cdrecord will write on the CD to close the recording session).
>
> Even if a sha1 or md5 hash is not available from the website, you can at least
> compare the two hashes between the iso file and the CD.
OK, thanks I will check, but I did a recursive diff on the iso and the
mounted cd and got no differences.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] Re: having problems getting burned cds to work
2015-05-26 18:40 ` Heiko Baums
@ 2015-05-26 19:08 ` covici
2015-05-26 19:44 ` Mick
0 siblings, 1 reply; 18+ messages in thread
From: covici @ 2015-05-26 19:08 UTC (permalink / raw
To: gentoo-user
Heiko Baums <lists@baums-on-web.de> wrote:
> Am 26.05.2015 um 15:53 schrieb covici@ccs.covici.com:
> > Hmmm, well I tried this and it was successful, so I wonder what is going
> > on with cdrecorder?
>
> So you probably have found a bug in cdrecord. Have you tried to
> downgrade cdrtools to check if it works with previous, preferentially
> stable releases?
>
> > Also, I logged in as root
> > which is normally how I have always burned cds, any way aside from
> > marking xfburn as suid root which I would prefer not to do to use the
> > program as a normal user?
>
> It's usually not necessary to burn a CD as root or give xfburn suid
> root. This leads to the next questions. Have you set the correct file
> permissions for /dev/sr0 (particularly user and group)? Should be
> root:cdrom. And is your user in the corresponding group (usually the
> group cdrom)?
I was asking because cdrecord gave me all sorts of warnings about not
being able to lock memory and suggested that I be root when running as a
normal user.
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici@ccs.covici.com
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [gentoo-user] Re: having problems getting burned cds to work
2015-05-26 19:08 ` covici
@ 2015-05-26 19:44 ` Mick
0 siblings, 0 replies; 18+ messages in thread
From: Mick @ 2015-05-26 19:44 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: Text/Plain, Size: 1335 bytes --]
On Tuesday 26 May 2015 20:08:31 covici@ccs.covici.com wrote:
> Heiko Baums <lists@baums-on-web.de> wrote:
> > Am 26.05.2015 um 15:53 schrieb covici@ccs.covici.com:
> > > Hmmm, well I tried this and it was successful, so I wonder what is
> > > going on with cdrecorder?
> >
> > So you probably have found a bug in cdrecord. Have you tried to
> > downgrade cdrtools to check if it works with previous, preferentially
> > stable releases?
> >
> > > Also, I logged in as root
> > > which is normally how I have always burned cds, any way aside from
> > > marking xfburn as suid root which I would prefer not to do to use the
> > > program as a normal user?
> >
> > It's usually not necessary to burn a CD as root or give xfburn suid
> > root. This leads to the next questions. Have you set the correct file
> > permissions for /dev/sr0 (particularly user and group)? Should be
> > root:cdrom. And is your user in the corresponding group (usually the
> > group cdrom)?
>
> I was asking because cdrecord gave me all sorts of warnings about not
> being able to lock memory and suggested that I be root when running as a
> normal user.
In case it helps:
ls -la /dev/sr0
brw-rw----+ 1 root cdrom 11, 0 May 26 19:04 /dev/sr0
My desktop user is a member of cdrom and plugdev groups.
--
Regards,
Mick
[-- Attachment #2: This is a digitally signed message part. --]
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^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2015-05-26 19:45 UTC | newest]
Thread overview: 18+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-05-26 2:27 [gentoo-user] having problems getting burned cds to work covici
2015-05-26 5:25 ` bitlord
2015-05-26 5:36 ` Dale
2015-05-26 5:47 ` covici
2015-05-26 8:08 ` Neil Bothwick
2015-05-26 10:17 ` covici
2015-05-26 12:21 ` Neil Bothwick
2015-05-26 18:25 ` Mick
2015-05-26 19:03 ` covici
2015-05-26 7:04 ` covici
2015-05-26 7:25 ` Dale
2015-05-26 7:33 ` Heiko Baums
2015-05-26 10:12 ` covici
2015-05-26 13:06 ` [gentoo-user] " James
2015-05-26 13:53 ` covici
2015-05-26 18:40 ` Heiko Baums
2015-05-26 19:08 ` covici
2015-05-26 19:44 ` Mick
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