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[67.77.88.12]) by mx.google.com with ESMTPSA id a127sm4708744ywc.19.2015.06.09.11.22.01 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 Jun 2015 11:22:01 -0700 (PDT) Message-ID: <55772E93.2000301@HIDDEN> Date: Tue, 09 Jun 2015 14:21:07 -0400 From: Phil Susi <psusi@HIDDEN> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: George Hicken <george.hicken@HIDDEN>, 20746 <at> debbugs.gnu.org Subject: Re: bug#20746: problem with non-LBA fat16 References: <CANBE-PKnQRmuukbTXHDdMYsuc5KXnR1or7Lqvf24cj4gTP+1Pg@HIDDEN> In-Reply-To: <CANBE-PKnQRmuukbTXHDdMYsuc5KXnR1or7Lqvf24cj4gTP+1Pg@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 20746 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.7 (/) On 6/5/2015 1:36 PM, George Hicken wrote: > Requested output prior to partitioning > > Error: /dev/sdb: unrecognised disk label > Error: /dev/sdb: unrecognised disk label > Error: /dev/sdb: unrecognised disk label > Model: VMware Virtual disk (scsi) > Disk /dev/sdb: 8590MB > Sector size (logical/physical): 512B/512B > Partition Table: unknown > Disk Flags: > Model: VMware Virtual disk (scsi) > Disk /dev/sdb: 16777216s > Sector size (logical/physical): 512B/512B > Partition Table: unknown > Disk Flags: > Model: VMware Virtual disk (scsi) > Disk /dev/sdb: 1044,85,0 > Sector size (logical/physical): 512B/512B > BIOS cylinder,head,sector geometry: 1044,255,63. Each cylinder is 8225kB. > Partition Table: unknown > Disk Flags: What are the exact commands that lead to this? What does parted /dev/sdb print show? What does fdisk show? > Using the parted supplied with tinycorelinux 6.x (reports as 3.1) to create Please try again with 3.2. > an MBT, create a primary fat16 parition with non-lba addressing > /usr/local/sbin/parted -a cylinder -s /dev/sdb -- mklabel msdos mkpart > primary fat16 1cyl 40MiB Do you mean to say that this is the command that produced the above output? > This produces a partition of type 0xe, but otherwise it's what we want - > interestingly parted print command doesn't detail the parition type, it's > all blank. Using "set 1 lba off" then does something entirely unexpected. > Using fdisk to inspect the partition table the type has switched to 0x83. > > I took a quick look at the code and 0x83 appears to be the default fstype > if none is set. Why this happens when setting lba off on a fat16 partition > I have no idea. This is because as you noted, 0x83 is the default type. Since you did not actually format a fat16 filesystem within the partition, parted can't detect any filesystem there and so does not know that it should use the type code for fat16.
bug-parted@HIDDEN:bug#20746; Package parted.
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X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Fri, 05 Jun 2015 13:52:36 -0400 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -4.0 (----) --001a11c2a13ec801600517c8b97a Content-Type: text/plain; charset=UTF-8 Requested output prior to partitioning Error: /dev/sdb: unrecognised disk label Error: /dev/sdb: unrecognised disk label Error: /dev/sdb: unrecognised disk label Model: VMware Virtual disk (scsi) Disk /dev/sdb: 8590MB Sector size (logical/physical): 512B/512B Partition Table: unknown Disk Flags: Model: VMware Virtual disk (scsi) Disk /dev/sdb: 16777216s Sector size (logical/physical): 512B/512B Partition Table: unknown Disk Flags: Model: VMware Virtual disk (scsi) Disk /dev/sdb: 1044,85,0 Sector size (logical/physical): 512B/512B BIOS cylinder,head,sector geometry: 1044,255,63. Each cylinder is 8225kB. Partition Table: unknown Disk Flags: Using the parted supplied with tinycorelinux 6.x (reports as 3.1) to create an MBT, create a primary fat16 parition with non-lba addressing /usr/local/sbin/parted -a cylinder -s /dev/sdb -- mklabel msdos mkpart primary fat16 1cyl 40MiB This produces a partition of type 0xe, but otherwise it's what we want - interestingly parted print command doesn't detail the parition type, it's all blank. Using "set 1 lba off" then does something entirely unexpected. Using fdisk to inspect the partition table the type has switched to 0x83. I took a quick look at the code and 0x83 appears to be the default fstype if none is set. Why this happens when setting lba off on a fat16 partition I have no idea. Thanks. George --001a11c2a13ec801600517c8b97a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Requested output prior to partitioning<div><br><div><div>E= rror: /dev/sdb: unrecognised disk label</div><div>Error: /dev/sdb: unrecogn= ised disk label</div><div>Error: /dev/sdb: unrecognised disk label</div><di= v>Model: VMware Virtual disk (scsi)</div><div>Disk /dev/sdb: 8590MB</div><d= iv>Sector size (logical/physical): 512B/512B</div><div>Partition Table: unk= nown</div><div>Disk Flags:</div><div>Model: VMware Virtual disk (scsi)</div= ><div>Disk /dev/sdb: 16777216s</div><div>Sector size (logical/physical): 51= 2B/512B</div><div>Partition Table: unknown</div><div>Disk Flags:</div><div>= Model: VMware Virtual disk (scsi)</div><div>Disk /dev/sdb: 1044,85,0</div><= div>Sector size (logical/physical): 512B/512B</div><div>BIOS cylinder,head,= sector geometry: 1044,255,63.=C2=A0 Each cylinder is 8225kB.</div><div>Part= ition Table: unknown</div><div>Disk Flags:</div></div><div><br></div></div>= <div>Using the parted supplied with tinycorelinux 6.x (reports as 3.1) to c= reate an MBT, create a primary fat16 parition with non-lba addressing</div>= <div>=C2=A0 =C2=A0/usr/local/sbin/parted -a cylinder -s /dev/sdb -- =C2=A0m= klabel msdos mkpart primary fat16 1cyl 40MiB=C2=A0<br></div><div><br></div>= <div>This produces a partition of type 0xe, but otherwise it's what we = want - interestingly parted print command doesn't detail the parition t= ype, it's all blank. Using "set 1 lba off" then does somethin= g entirely unexpected. Using fdisk to inspect the partition table the type = has switched to 0x83.</div><div><br></div><div>I took a quick look at the c= ode and 0x83 appears to be the default fstype if none is set. Why this happ= ens when setting lba off on a fat16 partition I have no idea.</div><div><br= ></div><div>Thanks.</div><div><br></div><div>George</div></div> --001a11c2a13ec801600517c8b97a--
George Hicken <george.hicken@HIDDEN>:bug-parted@HIDDEN.
Full text available.bug-parted@HIDDEN:bug#20746; Package parted.
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