eMMC partition problem

Post Reply
Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 1:19 pm

Hi, I just got my C1 a week a go and I'm very happy with it, but it comes with what I think it's a faulty eMMC unit, when it's plugged in it gets recognized but it couldn't read it nor put a partition

I've already tried:
  • dd
  • fdisk
  • gparted
  • win32diskimager
  • diskpart(cmd tool on win)
  • some recovery tool on Caine that i don't remember right now
  • to modify a tool linked on (1) to fit my C1
  • that same tool with a friend's XU on (2)
I'm using a TS RDP5, and already tried with almost 4 different readers

I'm pretty short of ideas right now, anyone has some suggestion?

(1) http://forum.odroid.com/viewtopic.php?f=53&t=969#p68164
(2) http://forum.odroid.com/viewtopic.php?f=53&t=4778
Attachments
IMG_20150125_230904_2048p.jpg

User avatar
odroid
Site Admin
Posts: 30027
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Contact:

Re: eMMC partition problem

Unread post by odroid » Mon Jan 26, 2015 2:06 pm

The C1 doesn't need the recovery process because S805 CPU doesn't access the hidden block in the eMMC.

Did you connect the eMMC in this way?
Image

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 2:57 pm

Off course, it wouldn't detect it either way, and with two eMMC to microSD too

User avatar
odroid
Site Admin
Posts: 30027
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Contact:

Re: eMMC partition problem

Unread post by odroid » Mon Jan 26, 2015 3:02 pm

Clicky sound should be made when you plug the eMMC module to the reader board to make sure connection.

Check also the direction of reader board. If the direction is wrong, your PC can't detect the storage.
I think you PC could detect the USB card reader without storage media. Right?

Anyway, If it doesn't help, contact "odroid at hardkernel dot com" with a link of this thread.
She will help your RMA process. Sorry for the inconvenience caused.

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 3:35 pm

Well just for record I guess then, this is what happen with it if I try to format the eMMC with fdisk

sudo fdisk -l

Code: Select all

Partition table entries are not in disk order.
Disk /dev/sdb: 14.7 GiB, 15758000128 bytes, 30777344 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0249138b

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1          63 30777343 30777281 14.7G  c W95 FAT32 (LBA)
sudo fdisk /dev/sdb

Code: Select all

Welcome to fdisk (util-linux 2.25.2).                                                                                                                                                                                                      
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): o
Created a new DOS disklabel with disk identifier 0x573f9b5d.

Command (m for help): n
Partition type
   p   primary (0 primary, 0 extended, 4 free)
   e   extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-30777343, default 2048): 
Last sector, +sectors or +size{K,M,G,T,P} (2048-30777343, default 30777343): 

Created a new partition 1 of type 'Linux' and of size 14.7 GiB.

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
sudo mkfs.ext4 /dev/sdb1

Code: Select all

mke2fs 1.42.12 (29-Aug-2014)
Creating filesystem with 3847160 4k blocks and 962880 inodes
Filesystem UUID: eb1eabf8-5185-4e46-9be4-14cc750395c6
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
sudo fdisk -l, again

Code: Select all

Partition table entries are not in disk order.
Disk /dev/sdb: 14.7 GiB, 15758000128 bytes, 30777344 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0249138b

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1          63 30777343 30777281 14.7G  c W95 FAT32 (LBA)
And even when says its FAT it doesn't recognize it anyway, and with any graphical tool either linux or windows says that the partition or partition table its faulty, depends on which sw I use, and doesn't matter if I create a new partition table or just erase the partition "existent" it's the same result

OK I guess I'm gonna RMA it, it's kind of pita but you guys are nice, thank your for your product and service

User avatar
tobetter
Posts: 2808
Joined: Mon Feb 25, 2013 10:55 am
languages_spoken: Korean, English
ODROIDs: X, X2, U2, U3, XU3, C1
Location: Paju, South Korea
Contact:

Re: eMMC partition problem

Unread post by tobetter » Mon Jan 26, 2015 3:59 pm

@Guso, I am just curious if you have tried to change the partition type on fdisk. Since I found that still the partition type is FAT32 (LBA) and you format it with mkfs.ext4. It does not match.

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 4:06 pm

@tobetter Thats the point, actually on the step 2, I erased all partitions on it, it just doesn't matter what I do on it will ever get the same result at fdisk -l, and at gparted says unrecognized

User avatar
tobetter
Posts: 2808
Joined: Mon Feb 25, 2013 10:55 am
languages_spoken: Korean, English
ODROIDs: X, X2, U2, U3, XU3, C1
Location: Paju, South Korea
Contact:

Re: eMMC partition problem

Unread post by tobetter » Mon Jan 26, 2015 4:29 pm

Guso wrote:@tobetter Thats the point, actually on the step 2, I erased all partitions on it, it just doesn't matter what I do on it will ever get the same result at fdisk -l, and at gparted says unrecognized
Even if you reinsert your USB card reader while eMMC is inserted once you done to write and exit from fdisk, still it says W95 FAT32? :o

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 4:35 pm

yup, or if I use dd to write zeros or an image on it, or if I rewrite the partition table and doing nothing else, keeps FAT

User avatar
tobetter
Posts: 2808
Joined: Mon Feb 25, 2013 10:55 am
languages_spoken: Korean, English
ODROIDs: X, X2, U2, U3, XU3, C1
Location: Paju, South Korea
Contact:

Re: eMMC partition problem

Unread post by tobetter » Mon Jan 26, 2015 4:50 pm

Guso wrote:yup, or if I use dd to write zeros or an image on it, or if I rewrite the partition table and doing nothing else, keeps FAT
Thank you for your clarification.

User avatar
odroid
Site Admin
Posts: 30027
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Contact:

Re: eMMC partition problem

Unread post by odroid » Mon Jan 26, 2015 4:54 pm

I think some unknown root causes made his card in the read-only mode. :o
Might be a defective eMMC module or reader board.
Or write-protection error in the USB card reader.

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Mon Jan 26, 2015 5:11 pm

Well that's true but I already tried another reader board besides mine, nothing change at all, as well as some other microSD-USB readers...

User avatar
odroid
Site Admin
Posts: 30027
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Contact:

Re: eMMC partition problem

Unread post by odroid » Mon Jan 26, 2015 5:42 pm

Yes, I agree.
Please contact us as I told you.

Guso
Posts: 45
Joined: Mon Mar 03, 2014 1:32 am
languages_spoken: english (alike), spanish
ODROIDs: C1
Contact:

Re: eMMC partition problem

Unread post by Guso » Tue Jan 27, 2015 1:41 am

Thank you again, I already did but not with hardkernel, I made my purchase with ameridroid, so I wrote them, or should I write hardkernel as well?

User avatar
odroid
Site Admin
Posts: 30027
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Contact:

Re: eMMC partition problem

Unread post by odroid » Tue Jan 27, 2015 11:45 am

No..
Contact the distributor if you bought the board from them. :)

Post Reply

Return to “Issues”

Who is online

Users browsing this forum: No registered users and 2 guests