Re: unable to mount a CD - iso9660 bug?

Re: unable to mount a CD - iso9660 bug?

[Bodo Eggert]

Ondrej Zary <linux@rainbow-software.org> wrote:
>> > On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:

>> > > I have a CD that came with Samsung printer that Linux cannot mount but
>> > > works fine in Windows. The CD is physically OK - "dd" made ISO image
>> > > without any problems. This ISO image is unmountable too. When I force
>> > > the filesystem to iso9660, it mounts but no files are visible:

> Here's the compressed ISO file if anyone wants to examine it:
> http://www.rainbow-software.org/linux_files/samsung-bad.rar

If you use -onorock, the files are visible.

unable to mount a CD - iso9660 bug?

[Ondrej Zary]

Hello,
I have a CD that came with Samsung printer that Linux cannot mount but works 
fine in Windows. The CD is physically OK - "dd" made ISO image without any 
problems. This ISO image is unmountable too. When I force the filesystem to 
iso9660, it mounts but no files are visible:

# mount samsung-bad.iso /mnt/tmp -o loop
mount: you must specify the filesystem type
# mount samsung-bad.iso /mnt/tmp -o loop -t iso9660
# ls -la /mnt/tmp
total 6
dr-xr-xr-x  2 root root 2048 Oct 30  2009 .
drwxr-xr-x 15 root root 4096 Sep 26  2006 ..
# df -h /mnt/tmp
Filesystem            Size  Used Avail Use% Mounted on
/dev/loop0            232M  232M     0 100% /mnt/tmp

dmesg shows this:
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A


If anyone can look into this, I can provide a link to the compressed ISO file 
(75MB).

-- 
Ondrej Zary

Re: unable to mount a CD - iso9660 bug?

[Johannes Stezenbach]

On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
> I have a CD that came with Samsung printer that Linux cannot mount but works 
> fine in Windows. The CD is physically OK - "dd" made ISO image without any 
> problems. This ISO image is unmountable too. When I force the filesystem to 
> iso9660, it mounts but no files are visible:

Maybe it's a multi-session disk where the first session is
HFS with Apple software.  Try mounting with -t iso9660 -o session=1.

HTH
Johannes

Re: unable to mount a CD - iso9660 bug?

[Ondrej Zary]

On Monday 16 August 2010, Johannes Stezenbach wrote:
> On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
> > I have a CD that came with Samsung printer that Linux cannot mount but
> > works fine in Windows. The CD is physically OK - "dd" made ISO image
> > without any problems. This ISO image is unmountable too. When I force the
> > filesystem to iso9660, it mounts but no files are visible:
>
> Maybe it's a multi-session disk where the first session is
> HFS with Apple software.  Try mounting with -t iso9660 -o session=1.

Still the same - no files. dmesg contains:

ISOFS: Invalid session number or type of track
ISOFS: Invalid session number
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A

-- 
Ondrej Zary

Re: unable to mount a CD - iso9660 bug?

[Ondrej Zary]

On Monday 16 August 2010 16:18:57 Ondrej Zary wrote:
> On Monday 16 August 2010, Johannes Stezenbach wrote:
> > On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
> > > I have a CD that came with Samsung printer that Linux cannot mount but
> > > works fine in Windows. The CD is physically OK - "dd" made ISO image
> > > without any problems. This ISO image is unmountable too. When I force
> > > the filesystem to iso9660, it mounts but no files are visible:
> >
> > Maybe it's a multi-session disk where the first session is
> > HFS with Apple software.  Try mounting with -t iso9660 -o session=1.
>
> Still the same - no files. dmesg contains:
>
> ISOFS: Invalid session number or type of track
> ISOFS: Invalid session number
> ISO 9660 Extensions: Microsoft Joliet Level 3
> ISO 9660 Extensions: RRIP_1991A

Here's the compressed ISO file if anyone wants to examine it:
http://www.rainbow-software.org/linux_files/samsung-bad.rar

-- 
Ondrej Zary

Re: unable to mount a CD - iso9660 bug?

[Tao Ma]

Hi Ondrej

On 08/17/2010 12:50 AM, Ondrej Zary wrote:
> On Monday 16 August 2010 16:18:57 Ondrej Zary wrote:
>> On Monday 16 August 2010, Johannes Stezenbach wrote:
>>> On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
>>>> I have a CD that came with Samsung printer that Linux cannot mount but
>>>> works fine in Windows. The CD is physically OK - "dd" made ISO image
>>>> without any problems. This ISO image is unmountable too. When I force
>>>> the filesystem to iso9660, it mounts but no files are visible:
>>>
>>> Maybe it's a multi-session disk where the first session is
>>> HFS with Apple software.  Try mounting with -t iso9660 -o session=1.
>>
>> Still the same - no files. dmesg contains:
>>
>> ISOFS: Invalid session number or type of track
>> ISOFS: Invalid session number
>> ISO 9660 Extensions: Microsoft Joliet Level 3
>> ISO 9660 Extensions: RRIP_1991A
>
> Here's the compressed ISO file if anyone wants to examine it:
> http://www.rainbow-software.org/linux_files/samsung-bad.rar
what is your kernel version? I can mount it successfully in my el5 box 
with kernel 2.6.35+.

Regards,
Tao

Re: unable to mount a CD - iso9660 bug?

[Ondrej Zary]

On Tuesday 17 August 2010, Tao Ma wrote:
> Hi Ondrej
>
> On 08/17/2010 12:50 AM, Ondrej Zary wrote:
> > On Monday 16 August 2010 16:18:57 Ondrej Zary wrote:
> >> On Monday 16 August 2010, Johannes Stezenbach wrote:
> >>> On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
> >>>> I have a CD that came with Samsung printer that Linux cannot mount but
> >>>> works fine in Windows. The CD is physically OK - "dd" made ISO image
> >>>> without any problems. This ISO image is unmountable too. When I force
> >>>> the filesystem to iso9660, it mounts but no files are visible:
> >>>
> >>> Maybe it's a multi-session disk where the first session is
> >>> HFS with Apple software.  Try mounting with -t iso9660 -o session=1.
> >>
> >> Still the same - no files. dmesg contains:
> >>
> >> ISOFS: Invalid session number or type of track
> >> ISOFS: Invalid session number
> >> ISO 9660 Extensions: Microsoft Joliet Level 3
> >> ISO 9660 Extensions: RRIP_1991A
> >
> > Here's the compressed ISO file if anyone wants to examine it:
> > http://www.rainbow-software.org/linux_files/samsung-bad.rar
>
> what is your kernel version? I can mount it successfully in my el5 box
> with kernel 2.6.35+.

I have 2.6.35. Also tried it on another two machines with Debian Squeeze 
2.6.32 and Lenny 2.6.26 with the same result (no files visible when mounted).


-- 
Ondrej Zary

Re: unable to mount a CD - iso9660 bug?

[A. C. Censi]

On Tue, Aug 17, 2010 at 7:08 AM, Ondrej Zary <linux@rainbow-software.org> wrote:
> On Tuesday 17 August 2010, Tao Ma wrote:
>> Hi Ondrej
>>
>> On 08/17/2010 12:50 AM, Ondrej Zary wrote:
>> > On Monday 16 August 2010 16:18:57 Ondrej Zary wrote:
>> >> On Monday 16 August 2010, Johannes Stezenbach wrote:
>> >>> On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
>> >>>> I have a CD that came with Samsung printer that Linux cannot mount but
>> >>>> works fine in Windows. The CD is physically OK - "dd" made ISO image
>> >>>> without any problems. This ISO image is unmountable too. When I force
>> >>>> the filesystem to iso9660, it mounts but no files are visible:
>> >>>
>> >>> Maybe it's a multi-session disk where the first session is
>> >>> HFS with Apple software.  Try mounting with -t iso9660 -o session=1.
>> >>
>> >> Still the same - no files. dmesg contains:
>> >>
>> >> ISOFS: Invalid session number or type of track
>> >> ISOFS: Invalid session number
>> >> ISO 9660 Extensions: Microsoft Joliet Level 3
>> >> ISO 9660 Extensions: RRIP_1991A
>> >
>> > Here's the compressed ISO file if anyone wants to examine it:
>> > http://www.rainbow-software.org/linux_files/samsung-bad.rar
>>
>> what is your kernel version? I can mount it successfully in my el5 box
>> with kernel 2.6.35+.
>
> I have 2.6.35. Also tried it on another two machines with Debian Squeeze
> 2.6.32 and Lenny 2.6.26 with the same result (no files visible when mounted).
>
>
> --
> Ondrej Zary
> --
> To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Try -unide mount option.

If it does not work, try what is described in the last posts of this thread:
http://www.pubbs.net/200910/kernel/12764-iso9660-mount-problem.html

Regards

-- 
A. C. Censi
accensi [em] gmail [ponto] com
accensi [em] montreal [ponto] com [ponto] br
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Re: unable to mount a CD - iso9660 bug?

[Ondrej Zary]

On Tuesday 17 August 2010 13:50:39 A. C. Censi wrote:
> On Tue, Aug 17, 2010 at 7:08 AM, Ondrej Zary <linux@rainbow-software.org> 
wrote:
> > On Tuesday 17 August 2010, Tao Ma wrote:
> >> Hi Ondrej
> >>
> >> On 08/17/2010 12:50 AM, Ondrej Zary wrote:
> >> > On Monday 16 August 2010 16:18:57 Ondrej Zary wrote:
> >> >> On Monday 16 August 2010, Johannes Stezenbach wrote:
> >> >>> On Mon, Aug 16, 2010 at 02:38:54PM +0200, Ondrej Zary wrote:
> >> >>>> I have a CD that came with Samsung printer that Linux cannot mount
> >> >>>> but works fine in Windows. The CD is physically OK - "dd" made ISO
> >> >>>> image without any problems. This ISO image is unmountable too. When
> >> >>>> I force the filesystem to iso9660, it mounts but no files are
> >> >>>> visible:
> >> >>>
> >> >>> Maybe it's a multi-session disk where the first session is
> >> >>> HFS with Apple software.  Try mounting with -t iso9660 -o session=1.
> >> >>
> >> >> Still the same - no files. dmesg contains:
> >> >>
> >> >> ISOFS: Invalid session number or type of track
> >> >> ISOFS: Invalid session number
> >> >> ISO 9660 Extensions: Microsoft Joliet Level 3
> >> >> ISO 9660 Extensions: RRIP_1991A
> >> >
> >> > Here's the compressed ISO file if anyone wants to examine it:
> >> > http://www.rainbow-software.org/linux_files/samsung-bad.rar
> >>
> >> what is your kernel version? I can mount it successfully in my el5 box
> >> with kernel 2.6.35+.
> >
> > I have 2.6.35. Also tried it on another two machines with Debian Squeeze
> > 2.6.32 and Lenny 2.6.26 with the same result (no files visible when
> > mounted).
> >
> >
> > --
> > Ondrej Zary
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel"
> > in the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
> Try -unide mount option.
>
> If it does not work, try what is described in the last posts of this
> thread: http://www.pubbs.net/200910/kernel/12764-iso9660-mount-problem.html

Thanks. As Bodo Eggert said, "-o norock" helps.

In fact, I've hit two "bugs":
1. blkid is unable to recognize HFS+ISO9660 CD. Just tracked it down and fixed 
only to find that it was aleady fixed:
http://git.kernel.org/?p=utils/util-linux-ng/util-linux-ng.git;a=commitdiff;h=791a2fd67c118c3f07141e4cc95532fe908015a9

2. some kernel feature - when Rock Ridge is present on iso9660, it's preferred 
over Joliet. The CD contains both but seems that only Joliet has files 
inside? When it's mounted with "-o nojoliet,norock", it's empty too. Can we 
detect this case and avoid it somehow (switch to Joliet?)

-- 
Ondrej Zary
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