GNU bug report logs - #20893
Strange behavior when using parted

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Joan Lledó <joanlluislledo <at> gmail.com>
To: bug-parted <at> gnu.org
Subject: Strange behavior when using parted
Date: Wed, 24 Jun 2015 22:44:23 +0200

Hello parted list,

I'm not sure this is a bug, probably not, but since I've installed
Debian 8 some scripts I use for helping me to test a library are
having a strange behavior. I've wrote a little script as an example:

#!/bin/bash
cd ~
modprobe scsi_debug dev_size_mb=800 sector_size=4096
parted /dev/sdf mklabel msdos
parted /dev/sdf mkpart primary 1 50
parted /dev/sdf mkpart primary 51 105
parted /dev/sdf mkpart extended 106 750
parted /dev/sdf mkpart primary 751 839
parted /dev/sdf mkpart logical 107 200
parted /dev/sdf mkpart logical 201 300
parted /dev/sdf mkpart logical 301 450
parted /dev/sdf mkpart logical 451 600
parted /dev/sdf mkpart logical 601 750

mkfs.ext4 /dev/sdf1
mkfs.vfat -F 32 /dev/sdf2
mkfs.ext2 /dev/sdf4
mkfs.ext3 /dev/sdf5
mkfs.vfat -F 16 /dev/sdf6
mkfs.ext4 /dev/sdf7
mkfs.vfat -F 32 /dev/sdf8
mkswap /dev/sdf9

xfs_admin -L selinux /dev/sdf8

echo "Mounting sdf1..."
mount /dev/sdf1 /mnt
umount /mnt

echo "Mounting sdf2..."
mount /dev/sdf2 /mnt
umount /mnt

echo "Mounting sdf4..."
mount /dev/sdf4 /mnt
umount /mnt

echo "Mounting sdf5..."
mount /dev/sdf5 /mnt
umount /mnt

echo "Mounting  sdf6..."
mount /dev/sdf6 /mnt
umount /mnt

echo "Mounting sdf7..."
mount /dev/sdf7 /mnt
umount /mnt

echo "Mounting sdf8..."
mount /dev/sdf8 /mnt
umount /mnt


When I run this script, most of the attempts to format the new
partitions fail with the error "The file /dev/sdf1 does not exist and
no size was specified.", just like the attempts to mount the formatted
partitions. The result of running this script is not even always the
same. Is seems like the kernel is not receiving the updates of the
/dev/sdf device. Not sure if this is caused by parted, udev, the
kernel... any ideas?

Message #8 received at 20893 <at> debbugs.gnu.org (full text, mbox):

From: "Brian C. Lane" <bcl <at> redhat.com>
To: Joan Lledó <joanlluislledo <at> gmail.com>
Cc: 20893 <at> debbugs.gnu.org
Subject: Re: bug#20893: Strange behavior when using parted
Date: Wed, 24 Jun 2015 14:53:01 -0700

On Wed, Jun 24, 2015 at 10:44:23PM +0200, Joan Lledó wrote:
> Hello parted list,
> 
> I'm not sure this is a bug, probably not, but since I've installed
> Debian 8 some scripts I use for helping me to test a library are
> having a strange behavior. I've wrote a little script as an example:

What version of parted are you using?

You may be hitting this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1135493

(there's a fix being discussed on the parted-devel list)


> 
> #!/bin/bash
> cd ~
> modprobe scsi_debug dev_size_mb=800 sector_size=4096
> parted /dev/sdf mklabel msdos
> parted /dev/sdf mkpart primary 1 50
> parted /dev/sdf mkpart primary 51 105
> parted /dev/sdf mkpart extended 106 750
> parted /dev/sdf mkpart primary 751 839
> parted /dev/sdf mkpart logical 107 200
> parted /dev/sdf mkpart logical 201 300
> parted /dev/sdf mkpart logical 301 450
> parted /dev/sdf mkpart logical 451 600
> parted /dev/sdf mkpart logical 601 750

Also, you should be using -s in your script to avoid prompting.

-- 
Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)

Message #11 received at 20893 <at> debbugs.gnu.org (full text, mbox):

From: Joan Lledó <joanlluislledo <at> gmail.com>
To: "Brian C. Lane" <bcl <at> redhat.com>
Cc: 20893 <at> debbugs.gnu.org
Subject: Re: bug#20893: Strange behavior when using parted
Date: Thu, 25 Jun 2015 00:49:31 +0200

[Message part 1 (text/plain, inline)]

On dc, 24 de jun 2015 a les 11:53 , Brian C. Lane <bcl <at> redhat.com> 
wrote:
> On Wed, Jun 24, 2015 at 10:44:23PM +0200, Joan Lledó wrote:
>>  Hello parted list,
>> 
>>  I'm not sure this is a bug, probably not, but since I've installed
>>  Debian 8 some scripts I use for helping me to test a library are
>>  having a strange behavior. I've wrote a little script as an example:
> 
> What version of parted are you using?

The one that comes with Debian 8: parted 3.2

> 
> 
> You may be hitting this bug:
> https://bugzilla.redhat.com/show_bug.cgi?id=1135493
> 
> (there's a fix being discussed on the parted-devel list)
> 

Thanks for the link. After reading it I can say that's exactly my
problem. I'm glad to know it's a parted bug, because I'm using libparted
in a project and thought it was a bug in my code. But this means all the
projects that use libparted 3.2, like gparted in Debian 8, must be
failing right now, right?

Is there a way to receive a notice when this bug is fixed?

> 
>> 
>>  #!/bin/bash
>>  cd ~
>>  modprobe scsi_debug dev_size_mb=800 sector_size=4096
>>  parted /dev/sdf mklabel msdos
>>  parted /dev/sdf mkpart primary 1 50
>>  parted /dev/sdf mkpart primary 51 105
>>  parted /dev/sdf mkpart extended 106 750
>>  parted /dev/sdf mkpart primary 751 839
>>  parted /dev/sdf mkpart logical 107 200
>>  parted /dev/sdf mkpart logical 201 300
>>  parted /dev/sdf mkpart logical 301 450
>>  parted /dev/sdf mkpart logical 451 600
>>  parted /dev/sdf mkpart logical 601 750
> 
> Also, you should be using -s in your script to avoid prompting.
> 
> --
> Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA 
> (PST8PDT)

[Message part 2 (text/html, inline)]

Message #14 received at 20893 <at> debbugs.gnu.org (full text, mbox):

From: "Brian C. Lane" <bcl <at> redhat.com>
To: Joan Lledó <joanlluislledo <at> gmail.com>
Cc: 20893 <at> debbugs.gnu.org
Subject: Re: bug#20893: Strange behavior when using parted
Date: Wed, 24 Jun 2015 16:17:51 -0700

On Thu, Jun 25, 2015 at 12:49:31AM +0200, Joan Lledó wrote:
> 
> 
> On dc, 24 de jun 2015 a les 11:53 , Brian C. Lane <bcl <at> redhat.com> wrote:
> >On Wed, Jun 24, 2015 at 10:44:23PM +0200, Joan Lledó wrote:
> >> Hello parted list,
> >>
> >> I'm not sure this is a bug, probably not, but since I've installed
> >> Debian 8 some scripts I use for helping me to test a library are
> >> having a strange behavior. I've wrote a little script as an example:
> >
> >What version of parted are you using?
> 
> The one that comes with Debian 8: parted 3.2
> 
> >
> >
> >You may be hitting this bug:
> >https://bugzilla.redhat.com/show_bug.cgi?id=1135493
> >
> >(there's a fix being discussed on the parted-devel list)
> >
> 
> Thanks for the link. After reading it I can say that's exactly my
> problem. I'm glad to know it's a parted bug, because I'm using libparted
> in a project and thought it was a bug in my code. But this means all the
> projects that use libparted 3.2, like gparted in Debian 8, must be
> failing right now, right?

Yep.

> 
> Is there a way to receive a notice when this bug is fixed?

It will be in parted 3.3 for sure. You'll have to check with your
distribution's bug tracker to get a notice.

-- 
Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)

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