Initial mount fails

Initial mount fails

[Zavi]

Hi all,

I'm trying yo mount nilfs on a device without success.
mkfs works just fine, but when I try to mount I keep getting an error
> sudo mkfs -t nilfs2 /dev/sdc
> sudo mount -t nilfs2 /dev/sdc ~/nilfs
mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument

I've installed nilfs-utils, and this is what I get from fsck
> sudo fsck0.nilfs2 -f -v /dev/sdc
fsck0.nilfs2: cannot read super block (device=/dev/sdc)

just to be sure the problem is not in the device, I mounted ext4 on it
successfuly.
I can also do block requests (dd, iometer) without a problem.

I'd appreciate any suggestion.

Thanks,
Zavi
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Re: Initial mount fails

[Ryusuke Konishi]

Hi,
On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
> Hi all,
> 
> I'm trying yo mount nilfs on a device without success.
> mkfs works just fine, but when I try to mount I keep getting an error
> > sudo mkfs -t nilfs2 /dev/sdc
> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
> 

Were there any related messages in logs?  Please try dmesg command or
make sure system logs:

 $ dmesg

 or 

 $ sudo cat /var/log/{messages,syslog}

Regards,
Ryusuke Konishi

> I've installed nilfs-utils, and this is what I get from fsck
> > sudo fsck0.nilfs2 -f -v /dev/sdc
> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
> 
> just to be sure the problem is not in the device, I mounted ext4 on it
> successfuly.
> I can also do block requests (dd, iometer) without a problem.
> 
> I'd appreciate any suggestion.
> 
> Thanks,
> Zavi
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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Re: Initial mount fails

[Zavi]

Thank you Ryusuke for the quick reply

Of course dmesg is the first thing I looked at.
All I see is a not very informative message
> NILFS: Can't find nilfs on dev sdc.


On Sun, Dec 4, 2011 at 3:29 PM, Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> Hi,
> On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
>> Hi all,
>>
>> I'm trying yo mount nilfs on a device without success.
>> mkfs works just fine, but when I try to mount I keep getting an error
>> > sudo mkfs -t nilfs2 /dev/sdc
>> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
>> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
>>
>
> Were there any related messages in logs?  Please try dmesg command or
> make sure system logs:
>
>  $ dmesg
>
>  or
>
>  $ sudo cat /var/log/{messages,syslog}
>
> Regards,
> Ryusuke Konishi
>
>> I've installed nilfs-utils, and this is what I get from fsck
>> > sudo fsck0.nilfs2 -f -v /dev/sdc
>> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
>>
>> just to be sure the problem is not in the device, I mounted ext4 on it
>> successfuly.
>> I can also do block requests (dd, iometer) without a problem.
>>
>> I'd appreciate any suggestion.
>>
>> Thanks,
>> Zavi
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
>> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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Re: Initial mount fails

[Ryusuke Konishi]

On Sun, 4 Dec 2011 18:38:58 +0200, Zavi wrote:
> Thank you Ryusuke for the quick reply
> 
> Of course dmesg is the first thing I looked at.
> All I see is a not very informative message
> > NILFS: Can't find nilfs on dev sdc.
> 

This message is printed when no super blocks are found on the device.
Does nilfs-tune command work for the partition ?

 $ sudo nilfs-tune -l /dev/sdc

It tries to read super block, and displays file system information if
a valid super block was found.

Regards,
Ryusuke Konishi

> On Sun, Dec 4, 2011 at 3:29 PM, Ryusuke Konishi
> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> > Hi,
> > On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
> >> Hi all,
> >>
> >> I'm trying yo mount nilfs on a device without success.
> >> mkfs works just fine, but when I try to mount I keep getting an error
> >> > sudo mkfs -t nilfs2 /dev/sdc
> >> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
> >> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
> >>
> >
> > Were there any related messages in logs?  Please try dmesg command or
> > make sure system logs:
> >
> >  $ dmesg
> >
> >  or
> >
> >  $ sudo cat /var/log/{messages,syslog}
> >
> > Regards,
> > Ryusuke Konishi
> >
> >> I've installed nilfs-utils, and this is what I get from fsck
> >> > sudo fsck0.nilfs2 -f -v /dev/sdc
> >> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
> >>
> >> just to be sure the problem is not in the device, I mounted ext4 on it
> >> successfuly.
> >> I can also do block requests (dd, iometer) without a problem.
> >>
> >> I'd appreciate any suggestion.
> >>
> >> Thanks,
> >> Zavi
> >> --
> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> --
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> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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Re: Initial mount fails

[Zavi]

Here's the result

> sudo nilfs-tune -l /dev/sdc
nilfs-tune 2.1.0-rc1
/dev/sdc: cannot open NILFS


On Sun, Dec 4, 2011 at 7:13 PM, Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> On Sun, 4 Dec 2011 18:38:58 +0200, Zavi wrote:
>> Thank you Ryusuke for the quick reply
>>
>> Of course dmesg is the first thing I looked at.
>> All I see is a not very informative message
>> > NILFS: Can't find nilfs on dev sdc.
>>
>
> This message is printed when no super blocks are found on the device.
> Does nilfs-tune command work for the partition ?
>
>  $ sudo nilfs-tune -l /dev/sdc
>
> It tries to read super block, and displays file system information if
> a valid super block was found.
>
> Regards,
> Ryusuke Konishi
>
>> On Sun, Dec 4, 2011 at 3:29 PM, Ryusuke Konishi
>> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
>> > Hi,
>> > On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
>> >> Hi all,
>> >>
>> >> I'm trying yo mount nilfs on a device without success.
>> >> mkfs works just fine, but when I try to mount I keep getting an error
>> >> > sudo mkfs -t nilfs2 /dev/sdc
>> >> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
>> >> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
>> >>
>> >
>> > Were there any related messages in logs?  Please try dmesg command or
>> > make sure system logs:
>> >
>> >  $ dmesg
>> >
>> >  or
>> >
>> >  $ sudo cat /var/log/{messages,syslog}
>> >
>> > Regards,
>> > Ryusuke Konishi
>> >
>> >> I've installed nilfs-utils, and this is what I get from fsck
>> >> > sudo fsck0.nilfs2 -f -v /dev/sdc
>> >> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
>> >>
>> >> just to be sure the problem is not in the device, I mounted ext4 on it
>> >> successfuly.
>> >> I can also do block requests (dd, iometer) without a problem.
>> >>
>> >> I'd appreciate any suggestion.
>> >>
>> >> Thanks,
>> >> Zavi
>> >> --
>> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
>> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
>> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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Re: Initial mount fails

[Ryusuke Konishi]

Hi,
On Sun, 4 Dec 2011 20:01:25 +0200, Zavi wrote:
> Here's the result
> 
> > sudo nilfs-tune -l /dev/sdc
> nilfs-tune 2.1.0-rc1
> /dev/sdc: cannot open NILFS

Hmm, seems like super blocks are not written to disk.

Does the following option ('-K' option) affect the results ?

 $ sudo mkfs -t nilfs2 -v -K /dev/sdc
 $ sudo nilfs-tune -l /dev/sdc

This option stops issuing discard command to disk just before writing
new super blocks.

Regards,
Ryusuke Konishi

> On Sun, Dec 4, 2011 at 7:13 PM, Ryusuke Konishi
> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> > On Sun, 4 Dec 2011 18:38:58 +0200, Zavi wrote:
> >> Thank you Ryusuke for the quick reply
> >>
> >> Of course dmesg is the first thing I looked at.
> >> All I see is a not very informative message
> >> > NILFS: Can't find nilfs on dev sdc.
> >>
> >
> > This message is printed when no super blocks are found on the device.
> > Does nilfs-tune command work for the partition ?
> >
> >  $ sudo nilfs-tune -l /dev/sdc
> >
> > It tries to read super block, and displays file system information if
> > a valid super block was found.
> >
> > Regards,
> > Ryusuke Konishi
> >
> >> On Sun, Dec 4, 2011 at 3:29 PM, Ryusuke Konishi
> >> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> >> > Hi,
> >> > On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
> >> >> Hi all,
> >> >>
> >> >> I'm trying yo mount nilfs on a device without success.
> >> >> mkfs works just fine, but when I try to mount I keep getting an error
> >> >> > sudo mkfs -t nilfs2 /dev/sdc
> >> >> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
> >> >> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
> >> >>
> >> >
> >> > Were there any related messages in logs?  Please try dmesg command or
> >> > make sure system logs:
> >> >
> >> >  $ dmesg
> >> >
> >> >  or
> >> >
> >> >  $ sudo cat /var/log/{messages,syslog}
> >> >
> >> > Regards,
> >> > Ryusuke Konishi
> >> >
> >> >> I've installed nilfs-utils, and this is what I get from fsck
> >> >> > sudo fsck0.nilfs2 -f -v /dev/sdc
> >> >> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
> >> >>
> >> >> just to be sure the problem is not in the device, I mounted ext4 on it
> >> >> successfuly.
> >> >> I can also do block requests (dd, iometer) without a problem.
> >> >>
> >> >> I'd appreciate any suggestion.
> >> >>
> >> >> Thanks,
> >> >> Zavi
> >> >> --
> >> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
> >> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> >> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >> --
> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> --
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Re: Initial mount fails

[Zavi]

That did it!
Although the messages I get now after mkfs are different than before.
But the bottom line is that the file system can be mounter now

Thanks a lot.

On Mon, Dec 5, 2011 at 6:23 AM, Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
> Hi,
> On Sun, 4 Dec 2011 20:01:25 +0200, Zavi wrote:
>> Here's the result
>>
>> > sudo nilfs-tune -l /dev/sdc
>> nilfs-tune 2.1.0-rc1
>> /dev/sdc: cannot open NILFS
>
> Hmm, seems like super blocks are not written to disk.
>
> Does the following option ('-K' option) affect the results ?
>
>  $ sudo mkfs -t nilfs2 -v -K /dev/sdc
>  $ sudo nilfs-tune -l /dev/sdc
>
> This option stops issuing discard command to disk just before writing
> new super blocks.
>
> Regards,
> Ryusuke Konishi
>
>> On Sun, Dec 4, 2011 at 7:13 PM, Ryusuke Konishi
>> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
>> > On Sun, 4 Dec 2011 18:38:58 +0200, Zavi wrote:
>> >> Thank you Ryusuke for the quick reply
>> >>
>> >> Of course dmesg is the first thing I looked at.
>> >> All I see is a not very informative message
>> >> > NILFS: Can't find nilfs on dev sdc.
>> >>
>> >
>> > This message is printed when no super blocks are found on the device.
>> > Does nilfs-tune command work for the partition ?
>> >
>> >  $ sudo nilfs-tune -l /dev/sdc
>> >
>> > It tries to read super block, and displays file system information if
>> > a valid super block was found.
>> >
>> > Regards,
>> > Ryusuke Konishi
>> >
>> >> On Sun, Dec 4, 2011 at 3:29 PM, Ryusuke Konishi
>> >> <konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org> wrote:
>> >> > Hi,
>> >> > On Sun, 4 Dec 2011 11:10:12 +0200, Zavi wrote:
>> >> >> Hi all,
>> >> >>
>> >> >> I'm trying yo mount nilfs on a device without success.
>> >> >> mkfs works just fine, but when I try to mount I keep getting an error
>> >> >> > sudo mkfs -t nilfs2 /dev/sdc
>> >> >> > sudo mount -t nilfs2 /dev/sdc ~/nilfs
>> >> >> mount.nilfs2: Error while mounting /dev/sdc on ~/nilfs: Invalid argument
>> >> >>
>> >> >
>> >> > Were there any related messages in logs?  Please try dmesg command or
>> >> > make sure system logs:
>> >> >
>> >> >  $ dmesg
>> >> >
>> >> >  or
>> >> >
>> >> >  $ sudo cat /var/log/{messages,syslog}
>> >> >
>> >> > Regards,
>> >> > Ryusuke Konishi
>> >> >
>> >> >> I've installed nilfs-utils, and this is what I get from fsck
>> >> >> > sudo fsck0.nilfs2 -f -v /dev/sdc
>> >> >> fsck0.nilfs2: cannot read super block (device=/dev/sdc)
>> >> >>
>> >> >> just to be sure the problem is not in the device, I mounted ext4 on it
>> >> >> successfuly.
>> >> >> I can also do block requests (dd, iometer) without a problem.
>> >> >>
>> >> >> I'd appreciate any suggestion.
>> >> >>
>> >> >> Thanks,
>> >> >> Zavi
>> >> >> --
>> >> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
>> >> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> >> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>> >> --
>> >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
>> >> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>> --
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