/sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No

/sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No

[Juergen Rose]

Hi,

during the initilization of udev (/etc/init.d/udev start) I get a lot
messages like "/bin/cat: /proc/ide/hda1/media: No such file or
directory". I suppose, I get it for all entries in /etc/fstab.
In /proc/ide I find only the following links or directories:
vilm:/var/log/hotplug(16)#ll /proc/ide/
total 8
-r--r--r--    1 root     root            0 Feb  4 20:17 drivers
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hda -> ide0/hda/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdb -> ide0/hdb/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdc -> ide1/hdc/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdd -> ide1/hdd/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hde -> ide2/hde/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdf -> ide2/hdf/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdg -> ide3/hdg/
lrwxrwxrwx    1 root     root            8 Feb  4 20:17 hdh -> ide3/hdh/
-r--r--r--    1 root     root            0 Feb  4 20:17 hpt366
dr-xr-xr-x    4 root     root            0 Feb  4 20:17 ide0/
dr-xr-xr-x    4 root     root            0 Feb  4 20:17 ide1/
dr-xr-xr-x    4 root     root            0 Feb  4 20:17 ide2/
dr-xr-xr-x    4 root     root            0 Feb  4 20:17 ide3/
-r--r--r--    1 root     root            0 Feb  4 20:17 via

I have seen this with linux-2.6.1 and udev-015, respectevely with
linux-2.6.2 and udev-015 and udev-016. Can I do something to avoid this
messages?

	Regards Juergen

-- 
Juergen Rose <rose@rz.uni-potsdam.de>
Max-Delbrueck-Zentrum



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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No such file or directory

[Greg KH]

On Wed, Feb 04, 2004 at 08:24:08PM +0100, Juergen Rose wrote:
> Hi,
> 
> during the initilization of udev (/etc/init.d/udev start) I get a lot
> messages like "/bin/cat: /proc/ide/hda1/media: No such file or
> directory". I suppose, I get it for all entries in /etc/fstab.
> In /proc/ide I find only the following links or directories:
> vilm:/var/log/hotplug(16)#ll /proc/ide/

What does your /etc/udev/udev.rules file look like?  I sugest taking out
the rule that calls that program, if you do not have that program on
your system (or install it, as it is present in the udev tarball...)

thanks,

greg k-h


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/sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No such file or directory

[Bob Barry]

On Wed, 04 Feb 2004 20:24, Juergen Rose wrote:
> during the initilization of udev (/etc/init.d/udev start) I get a lot
> messages like "/bin/cat: /proc/ide/hda1/media: No such file or
> directory". 

I see the same thing, and I've been watching for an answer.

I use the rule for cdrom from the tarball /etc/udev/udev.rules:
BUS="ide", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom", NAME="%k", SYMLINK="cdrom"

Links exist in /proc/ide to hda, hdc and hdd.  After startup, the cat works:
	> /bin/cat /proc/ide/hd[acd]/media
	disk
	cdrom
	cdrom

Is /proc/ide being used before it is built?

TIA,

Bob



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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media:

[Juergen Rose]

On Thu, 2004-02-05 at 18:23, Greg KH wrote:
> On Wed, Feb 04, 2004 at 08:24:08PM +0100, Juergen Rose wrote:
> > Hi,
> > 
> > during the initilization of udev (/etc/init.d/udev start) I get a lot
> > messages like "/bin/cat: /proc/ide/hda1/media: No such file or
> > directory". I suppose, I get it for all entries in /etc/fstab.
> > In /proc/ide I find only the following links or directories:
> > vilm:/var/log/hotplug(16)#ll /proc/ide/
> 
> What does your /etc/udev/udev.rules file look like?  I sugest taking out
> the rule that calls that program, if you do not have that program on
> your system (or install it, as it is present in the udev tarball...)

it is the unchanged udev.rules from udev-016. I suppose, the responsible
rule is:

BUS="ide", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom",
NAME="%k", SYMLINK="cdrom" , 

where udev replaces %k by pattern hd* from /etc/fstab.

	Regards Juergen


-- 
Juergen Rose <rose@rz.uni-potsdam.de>
Max-Delbrueck-Zentrum



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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media:

[Frédéric L. W. Meunier]

On Thu, 5 Feb 2004, Bob Barry wrote:

> On Wed, 04 Feb 2004 20:24, Juergen Rose wrote:
> > during the initilization of udev (/etc/init.d/udev start) I get a lot
> > messages like "/bin/cat: /proc/ide/hda1/media: No such file or
> > directory".
>
> I see the same thing, and I've been watching for an answer.
>
> I use the rule for cdrom from the tarball /etc/udev/udev.rules:
> BUS="ide", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom", NAME="%k", SYMLINK="cdrom"
>
> Links exist in /proc/ide to hda, hdc and hdd.  After startup, the cat works:
> 	> /bin/cat /proc/ide/hd[acd]/media
> 	disk
> 	cdrom
> 	cdrom
>
> Is /proc/ide being used before it is built?

I'm also seeing it, even running it after the system boots.

/bin/cat: /proc/ide/hda1/media: No such file or directory
/bin/cat: /proc/ide/hda10/media: No such file or directory
/bin/cat: /proc/ide/hda11/media: No such file or directory
/bin/cat: /proc/ide/hda12/media: No such file or directory
/bin/cat: /proc/ide/hda2/media: No such file or directory
/bin/cat: /proc/ide/hda5/media: No such file or directory
/bin/cat: /proc/ide/hda6/media: No such file or directory
/bin/cat: /proc/ide/hda7/media: No such file or directory
/bin/cat: /proc/ide/hda8/media: No such file or directory
/bin/cat: /proc/ide/hda9/media: No such file or directory
/bin/cat: /proc/ide/hda3/media: No such file or directory

Is it because I also have devfs enabled ?

I don't mount proc in /etc/fstab, but as the first line in the
system rc script:

mount -vn -t proc /proc /proc

/proc/ide:
total 3
dr-xr-xr-x   4 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  50 root root 0 2004-02-06 13:18 ../
-r--r--r--   1 root root 0 2004-02-06 16:13 drivers
lrwxrwxrwx   1 root root 8 2004-02-06 16:13 hda -> ide0/hda/
lrwxrwxrwx   1 root root 8 2004-02-06 16:13 hdc -> ide1/hdc/
lrwxrwxrwx   1 root root 8 2004-02-06 16:13 hdd -> ide1/hdd/
dr-xr-xr-x   3 root root 0 2004-02-06 16:13 ide0/
dr-xr-xr-x   4 root root 0 2004-02-06 16:13 ide1/
-r--r--r--   1 root root 0 2004-02-06 16:13 via

/proc/ide/ide0:
total 0
dr-xr-xr-x  3 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  4 root root 0 2004-02-06 16:13 ../
-r--r--r--  1 root root 0 2004-02-06 16:13 channel
-rw-r--r--  1 root root 0 2004-02-06 16:13 config
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 hda/
-r--r--r--  1 root root 0 2004-02-06 16:13 mate
-r--r--r--  1 root root 0 2004-02-06 16:13 model

/proc/ide/ide0/hda:
total 0
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  3 root root 0 2004-02-06 16:13 ../
-r--r--r--  1 root root 0 2004-02-06 16:13 cache
-r--r--r--  1 root root 0 2004-02-06 16:13 capacity
-r--r--r--  1 root root 0 2004-02-06 16:13 driver
-r--r--r--  1 root root 0 2004-02-06 16:13 geometry
-r--------  1 root root 0 2004-02-06 16:13 identify
-r--r--r--  1 root root 0 2004-02-06 16:13 media
-r--r--r--  1 root root 0 2004-02-06 16:13 model
-rw-------  1 root root 0 2004-02-06 16:13 settings
-r--------  1 root root 0 2004-02-06 16:13 smart_thresholds
-r--------  1 root root 0 2004-02-06 16:13 smart_values

/proc/ide/ide1:
total 0
dr-xr-xr-x  4 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  4 root root 0 2004-02-06 16:13 ../
-r--r--r--  1 root root 0 2004-02-06 16:13 channel
-rw-r--r--  1 root root 0 2004-02-06 16:13 config
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 hdc/
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 hdd/
-r--r--r--  1 root root 0 2004-02-06 16:13 mate
-r--r--r--  1 root root 0 2004-02-06 16:13 model

/proc/ide/ide1/hdc:
total 0
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  4 root root 0 2004-02-06 16:13 ../
-r--r--r--  1 root root 0 2004-02-06 16:13 driver
-r--------  1 root root 0 2004-02-06 16:13 identify
-r--r--r--  1 root root 0 2004-02-06 16:13 media
-r--r--r--  1 root root 0 2004-02-06 16:13 model
-rw-------  1 root root 0 2004-02-06 16:13 settings

/proc/ide/ide1/hdd:
total 0
dr-xr-xr-x  2 root root 0 2004-02-06 16:13 ./
dr-xr-xr-x  4 root root 0 2004-02-06 16:13 ../
-r--r--r--  1 root root 0 2004-02-06 16:13 driver
-r--------  1 root root 0 2004-02-06 16:13 identify
-r--r--r--  1 root root 0 2004-02-06 16:13 media
-r--r--r--  1 root root 0 2004-02-06 16:13 model
-rw-------  1 root root 0 2004-02-06 16:13 settings

-- 
http://www.pervalidus.net/contact.html


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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No such file or directory

[Kay Sievers]

On Fri, Feb 06, 2004 at 05:23:12PM -0200, Frédéric L. W. Meunier wrote:
> On Thu, 5 Feb 2004, Bob Barry wrote:
> 
> > On Wed, 04 Feb 2004 20:24, Juergen Rose wrote:
> > > during the initilization of udev (/etc/init.d/udev start) I get a lot
> > > messages like "/bin/cat: /proc/ide/hda1/media: No such file or
> > > directory".
> >
> > I see the same thing, and I've been watching for an answer.
> >
> > I use the rule for cdrom from the tarball /etc/udev/udev.rules:
> > BUS="ide", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom", NAME="%k", SYMLINK="cdrom"
> >
> > Links exist in /proc/ide to hda, hdc and hdd.  After startup, the cat works:
> > 	> /bin/cat /proc/ide/hd[acd]/media
> > 	disk
> > 	cdrom
> > 	cdrom
> >
> > Is /proc/ide being used before it is built?
> 
> I'm also seeing it, even running it after the system boots.
> 
> /bin/cat: /proc/ide/hda1/media: No such file or directory
> /bin/cat: /proc/ide/hda10/media: No such file or directory
> /bin/cat: /proc/ide/hda11/media: No such file or directory
> /bin/cat: /proc/ide/hda12/media: No such file or directory
> /bin/cat: /proc/ide/hda2/media: No such file or directory
> /bin/cat: /proc/ide/hda5/media: No such file or directory
> /bin/cat: /proc/ide/hda6/media: No such file or directory
> /bin/cat: /proc/ide/hda7/media: No such file or directory
> /bin/cat: /proc/ide/hda8/media: No such file or directory
> /bin/cat: /proc/ide/hda9/media: No such file or directory
> /bin/cat: /proc/ide/hda3/media: No such file or directory
> 
> Is it because I also have devfs enabled ?

No it's cause you try to read 'media' on an partition.
Just ignore it or use:

  BUS="ide", KERNEL="*[!0-9]", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom", NAME="%k", SYMLINK="cdrom"

It will ignore all kernel names ending with a digit.

hope that works for you,
Kay


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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media:

[Frédéric L. W. Meunier]

On Fri, 6 Feb 2004, Kay Sievers wrote:

> On Fri, Feb 06, 2004 at 05:23:12PM -0200, Frédéric L. W. Meunier wrote:
> >
> > I'm also seeing it, even running it after the system boots.
> >
> > /bin/cat: /proc/ide/hda1/media: No such file or directory
> > /bin/cat: /proc/ide/hda10/media: No such file or directory
> > /bin/cat: /proc/ide/hda11/media: No such file or directory
> > /bin/cat: /proc/ide/hda12/media: No such file or directory
> > /bin/cat: /proc/ide/hda2/media: No such file or directory
> > /bin/cat: /proc/ide/hda5/media: No such file or directory
> > /bin/cat: /proc/ide/hda6/media: No such file or directory
> > /bin/cat: /proc/ide/hda7/media: No such file or directory
> > /bin/cat: /proc/ide/hda8/media: No such file or directory
> > /bin/cat: /proc/ide/hda9/media: No such file or directory
> > /bin/cat: /proc/ide/hda3/media: No such file or directory
> >
> > Is it because I also have devfs enabled ?
>
> No it's cause you try to read 'media' on an partition.
> Just ignore it or use:
>
>   BUS="ide", KERNEL="*[!0-9]", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom", NAME="%k", SYMLINK="cdrom"
>
> It will ignore all kernel names ending with a digit.

Thanks, works fine. BTW, I noticed udev doesn't create entries
for NETLINK_DEV, while devfs does. But since the help has

"This option will be removed soon. Any programs that want to
use
character special nodes like /dev/tap0 or /dev/route (all with
major number 36) need this option, and need to be rewritten
soon to use the real netlink socket.

This is a backward compatibility option, choose Y for now."

I assume it isn't needed.

-- 
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Re: /sbin/udev block and /bin/cat: /proc/ide/hd[a-h][1-10]/media: No such file or directory

[Greg KH]

On Fri, Feb 06, 2004 at 05:54:29PM -0200, Frédéric L. W. Meunier wrote:
> Thanks, works fine. BTW, I noticed udev doesn't create entries
> for NETLINK_DEV, while devfs does. But since the help has
> 
> "This option will be removed soon. Any programs that want to
> use
> character special nodes like /dev/tap0 or /dev/route (all with
> major number 36) need this option, and need to be rewritten
> soon to use the real netlink socket.
> 
> This is a backward compatibility option, choose Y for now."
> 
> I assume it isn't needed.

Yes, that is true.

thanks,

greg k-h


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