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Error message from GParted, means what?

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  Error message from GParted, means what? Richard Owlett <rowlett@cloud85.net> - 2016-11-26 23:50 +0100
    Re: Error message from GParted, means what? Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-27 10:20 +0100
      Re: Error message from GParted, means what? Richard Owlett <rowlett@cloud85.net> - 2016-11-27 13:10 +0100
        Re: before first use of a brand new flash drive (was: Error message  from GParted...) Felix Miata <mrmazda@earthlink.net> - 2016-11-27 17:10 +0100
          Re: before first use of a brand new flash drive Richard Owlett <rowlett@cloud85.net> - 2016-11-27 18:30 +0100
            Re: before first use of a brand new flash drive Doug <dmcgarrett@optonline.net> - 2016-11-27 20:50 +0100
              Re: before first use of a brand new flash drive Brad Rogers <brad@fineby.me.uk> - 2016-11-27 21:10 +0100
                Re: before first use of a brand new flash drive rhkramer@gmail.com - 2016-11-28 00:20 +0100
                  Re: before first use of a brand new flash drive Doug <dmcgarrett@optonline.net> - 2016-11-28 01:20 +0100
                    Re: before first use of a brand new flash drive Eike Lantzsch <zp6cge@gmx.net> - 2016-11-28 10:30 +0100
                Re: Congratulations samrmn , Your Roof is Covered. Thank You!Wdw9 Sam Rahmani <samrmn@gmail.com> - 2016-11-30 15:00 +0100

#175105 — Error message from GParted, means what?

I've been getting a strange error messages when looking at some 8 
GB flash drives from different manufacturers purchased months apart.

There is a title bar at top saying "Libparted Warning (as superuser).
The body of the message box has:
   1. an Exclamation point surrounded by orange and yellow triangle.
   2. a message text saying "The driver descriptor says the 
physical block
      size is 2048 bytes, but Linux says it is 512 bytes.
   3. There are two buttons present.
      One saying "Cancel"
      The other saying "Ignore"

On today's drive:
   1. I clicked "Cancel" then dismissed several boxes the gist of 
whose messages
      was that what I had started had not been done.
   2. The entire drive is shown as "allocated".
   3. Clicking on "New" yields message saying "No partition table 
found ..."
   4.I attempt to create partition table and get the "block 
sector size" message.
   5. Chose "ignore"
   6. Apparently then able to create a single 8 GB partition.

Any suggestions as to the problem's origin? I've no way to 
establish the history of the drive.

Any reason to expect future problems?

TIA

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#175109

Le 26/11/2016 à 23:42, Richard Owlett a écrit :
> I've been getting a strange error messages when looking at some 8 GB
> flash drives from different manufacturers purchased months apart.
>
> There is a title bar at top saying "Libparted Warning (as superuser).
> The body of the message box has:
>   1. an Exclamation point surrounded by orange and yellow triangle.
>   2. a message text saying "The driver descriptor says the physical block
>      size is 2048 bytes, but Linux says it is 512 bytes.
>   3. There are two buttons present.
>      One saying "Cancel"
>      The other saying "Ignore"

I have seen this behaviour when running parted on a USB flash drive 
containing a Debian installer ISOhybrid x86 image which seems to combine 
a DOS partitition table, an Apple Mac partition table, a GPT partition 
table and an ISO 9660 header. I guess the 2048-byte block size is set to 
match the sector size of optical media.

I have found that historically partitioning tools based on libparted 
(parted, gparted, partman [Debian installer]) did not handle well this 
non-standard format. The parted version in Wheezy just could not read it.

Another problem I observed is that erasing the partition table does not 
erase the ISO 9660 header, and programs based on libblkid (udev, desktop 
environment file managers) still find it and wrongly apply the 
identifier string in it to label the drive.

Before reusing a drive which had contained an ISO image, I advise to 
erase any metadata with wipefs.

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#175113

On 11/27/2016 3:15 AM, Pascal Hambourg wrote:
> Le 26/11/2016 à 23:42, Richard Owlett a écrit :
>> I've been getting a strange error messages when looking at some
>> 8 GB
>> flash drives from different manufacturers purchased months apart.
>>
>> There is a title bar at top saying "Libparted Warning (as
>> superuser).
>> The body of the message box has:
>>   1. an Exclamation point surrounded by orange and yellow
>> triangle.
>>   2. a message text saying "The driver descriptor says the
>> physical block
>>      size is 2048 bytes, but Linux says it is 512 bytes.
>>   3. There are two buttons present.
>>      One saying "Cancel"
>>      The other saying "Ignore"
>
> I have seen this behaviour when running parted on a USB flash
> drive containing a Debian installer ISOhybrid x86 image which
> seems to combine a DOS partitition table, an Apple Mac partition
> table, a GPT partition table and an ISO 9660 header. I guess the
> 2048-byte block size is set to match the sector size of optical
> media.
>
> I have found that historically partitioning tools based on
> libparted (parted, gparted, partman [Debian installer]) did not
> handle well this non-standard format. The parted version in
> Wheezy just could not read it.
>
> Another problem I observed is that erasing the partition table
> does not erase the ISO 9660 header, and programs based on
> libblkid (udev, desktop environment file managers) still find it
> and wrongly apply the identifier string in it to label the drive.
>
> Before reusing a drive which had contained an ISO image, I advise
> to erase any metadata with wipefs.

*THANK YOU*  <MASSIVE GRIN>!
I think you may have cleared up several hard to isolate problems.
It may be an interesting exercise, before first use of a brand 
new flash drive, to examine it via Gparted and "wipefs /dev/sdX"

Yesterday I had purchased a blister pack of four 8GB that were on 
clearance at a local office supply store [labeled "Lexar by 
Micron" "Jumpdrive S50" USB 2.0].

One was used without any apparent problem to be the source for 2 
preseed.cfg files. I did installs with each which ran as expected.

One was plugged in before I ran a script to prepare a file that 
would later be written to the flash drive. There was some [not 
yet identified] problem with the script indicated by flashing of 
drive activity light. That was the drive that prompted my post.

After reading your message I examined the other two drives.
   "wipefs /dev/sdb" reported a dos partition table at 0x1fe.
   Gparted showed:
     1st drive
       4.03 MiB unallocated
       7.45 GiB FAT32 (1.91 MiB used) (no Flags set)
     2nd drive
       7.46 GiB FAT32 (4.03 MiB used) (lba Flags set)

One of them had been plugged into one of my machines yesterday. 
Which and what action taken - unknown.

I assume that running "wipefs --all --force /dev/sdb" followed by 
using Gparted to create a partition table followed by 
partitioning will make all Debian tools "happy".

Thank you.

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#175117 — Re: before first use of a brand new flash drive (was: Error message from GParted...)

Richard Owlett composed on 2016-11-27 07:02 (UTC-0500):

...
> It may be an interesting exercise, before first use of a brand
> new flash drive, to examine it via Gparted and "wipefs /dev/sdX"...

I first test that the claimed capacity is valid:
https://fightflashfraud.wordpress.com/2008/11/24/h2testw-gold-standard-in-detecting-fake-capacity-flash/
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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#175118 — Re: before first use of a brand new flash drive

On 11/27/2016 10:07 AM, Felix Miata wrote:
> Richard Owlett composed on 2016-11-27 07:02 (UTC-0500):
>
> ...
>> It may be an interesting exercise, before first use of a brand
>> new flash drive, to examine it via Gparted and "wipefs
>> /dev/sdX"...
>
> I first test that the claimed capacity is valid:
> https://fightflashfraud.wordpress.com/2008/11/24/h2testw-gold-standard-in-detecting-fake-capacity-flash/
>

Thank you. The page was interesting reading. It got me thinking.
I haven't done any significant programming since CPU's heated 
buildings with 12AX7's ;/

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#175120 — Re: before first use of a brand new flash drive

On 11/27/2016 11:28 AM, Richard Owlett wrote:
> On 11/27/2016 10:07 AM, Felix Miata wrote:
>> Richard Owlett composed on 2016-11-27 07:02 (UTC-0500):
>>
>> ...
>>> It may be an interesting exercise, before first use of a brand
>>> new flash drive, to examine it via Gparted and "wipefs
>>> /dev/sdX"...
>>
>> I first test that the claimed capacity is valid:
>> https://fightflashfraud.wordpress.com/2008/11/24/h2testw-gold-standard-in-detecting-fake-capacity-flash/ 
>>
>>
>
> Thank you. The page was interesting reading. It got me thinking.
> I haven't done any significant programming since CPU's heated 
> buildings with 12AX7's ;/
>
That's a very old page. Does any reader know of an up-to-date Linux 
program that serves this purpose?

--doug

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#175122 — Re: before first use of a brand new flash drive

[Multipart message — attachments visible in raw view] — view raw

On Sun, 27 Nov 2016 19:43:52 -0600
Doug <dmcgarrett@optonline.net> wrote:

Hello Doug,

>That's a very old page. Does any reader know of an up-to-date Linux 
>program that serves this purpose?

f3 is in the Debian repos.

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
You're not so safe in the safety of your room
Nasty - The Damned

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#175129 — Re: before first use of a brand new flash drive

On Sunday, November 27, 2016 03:02:19 PM Brad Rogers wrote:
> f3 is in the Debian repos.

For anybody that goes looking for it, it is apparently a "current" package for 
Jessie and Sid, but it is in backports for Wheezy.

https://packages.debian.org/wheezy-backports/f3

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#175134 — Re: before first use of a brand new flash drive

On 11/27/2016 05:11 PM, rhkramer@gmail.com wrote:
> On Sunday, November 27, 2016 03:02:19 PM Brad Rogers wrote:
>> f3 is in the Debian repos.
> For anybody that goes looking for it, it is apparently a "current" package for
> Jessie and Sid, but it is in backports for Wheezy.
>
> https://packages.debian.org/wheezy-backports/f3
>
>
There are also a number of rpm versions in rpmfind. I installed one, but 
I will have to make a PATH to it--the system can't find it.

--doug

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#175142 — Re: before first use of a brand new flash drive

On Monday, November 28, 2016 12:14:15 AM PYST Doug wrote:
> On 11/27/2016 05:11 PM, rhkramer@gmail.com wrote:
> > On Sunday, November 27, 2016 03:02:19 PM Brad Rogers wrote:
> >> f3 is in the Debian repos.
> > 
> > For anybody that goes looking for it, it is apparently a "current" package
> > for Jessie and Sid, but it is in backports for Wheezy.
> > 
> > https://packages.debian.org/wheezy-backports/f3
> 
> There are also a number of rpm versions in rpmfind. I installed one, but
> I will have to make a PATH to it--the system can't find it.
> 
> --doug

apropos f3
f3brew (1)           - help developers to infer how fake drives work
f3fix (1)            - edit the partition table of a fake flash drive
f3probe (1)          - probe a block device for counterfeit flash memory
f3read (1)           - test real flash memory capacity
f3write (1)          - test real flash memory capacity
kdiff3 (1)           - compares two or three input files or directories

HTH

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#175279 — Re: Congratulations samrmn , Your Roof is Covered. Thank You!Wdw9

[Multipart message — attachments visible in raw view] — view raw

Screw you.

On Sun, Nov 27, 2016 at 12:02 PM, Brad Rogers <brad@fineby.me.uk> wrote:

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