Continual reboot problem even with b796fmt

FrancisT · 04-18-2009, 08:36 AM

So I ran down the memory of my cybook and then cocked up the connect to computer to recharge thing so that the SD card (and presumably) the internal flash are toast.

I've reformated the external SD card and downloaded b796fmt and installed following these instructions - https://wiki.mobileread.com/wiki/Cybo...e_Library_Page - with no success. I know B796fmt worked because the SD card had the update_kernel file deleted and had the 3 folders created but the cybook still behaves the same way

Anyone got any further ideas? e.g. will B538 work and of so can anyone tell me how to get it? or is my best bet to contact Bookeen?

Francis

Pulp · 04-18-2009, 12:47 PM

The 3 folders being created on the SD-card has nothing to do with the update working or not. The folders are created everytime you insert a fresh card.

From the way you do not seem to be 100% sure if the update was made I am pretty sure it wasn't.
You have to keep the center button pressed once the first boot screen is shown.
You will get a completely new screen that explicitly sais that the firmware is being updated - with a processbar being shown.

It takes a while and you will end up with a completely clean device.

FrancisT · 04-18-2009, 03:09 PM

Thanks Pulp. That was the hint I needed to figure out that the update_kernal file wasn't being correctly copied onto the SD card. Fortunately it seems like Bookeen's software deletes 0 byte files called update_kernel instead of trying to run them.

Got the file on right and then indeed it updated and I now have a happy blank Cybook

Pulp · 04-19-2009, 07:09 AM

Happy to hear that it worked

- make sure to always use your PCs "safely remove hardware"-feature after you copied anything to (or deleted from) your Cybook - it makes sure the memory does not get corrupted!

FrancisT · 04-19-2009, 07:15 AM

I am normally very very careful about this.

The original wiping occured because I didn't want the cybook switched on while recharging and so I disconnected it. Unfortunately it really had 0 juice left and died after being disconnected.

The SD card issue appears to be a "feature" of my version of linux (xubuntu 8.04) which is that it doesn't seem to properly flush the write cache on my even when I do the remove safely option when using the built in SD slot on my laptop. Now I know and so I can work around this.

tompe · 04-19-2009, 08:38 AM

Quote:

Originally Posted by FrancisT

The SD card issue appears to be a "feature" of my version of linux (xubuntu 8.04) which is that it doesn't seem to properly flush the write cache on my even when I do the remove safely option when using the built in SD slot on my laptop. Now I know and so I can work around this.

Did you do umount? And you know that this can take some time since all the data can be in memory so you have to wait for it to finish?

FrancisT · 04-20-2009, 04:00 PM

Quote:

Originally Posted by tompe

Did you do umount? And you know that this can take some time since all the data can be in memory so you have to wait for it to finish?

Yes and what I get when I u(n)mount the SD card is a "Unsupported IOCTL Error" when the SD card is VFAT formatted. Now that I Know what the problem is I can work around it by using a different laptop and linux version

I don't use the SD card reader much - I've tended to keep my ebook SD card in the Cybook - so I did not realize what this error signified.

04-18-2009, 08:36 AM	#1
FrancisT Member Posts: 23 Karma: 65 Join Date: Mar 2008 Device: Cybook, Toshiba NB100	Continual reboot problem even with b796fmt So I ran down the memory of my cybook and then cocked up the connect to computer to recharge thing so that the SD card (and presumably) the internal flash are toast. I've reformated the external SD card and downloaded b796fmt and installed following these instructions - https://wiki.mobileread.com/wiki/Cybo...e_Library_Page - with no success. I know B796fmt worked because the SD card had the update_kernel file deleted and had the 3 folders created but the cybook still behaves the same way Anyone got any further ideas? e.g. will B538 work and of so can anyone tell me how to get it? or is my best bet to contact Bookeen? Francis

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04-18-2009, 12:47 PM	#2
Pulp Palm Addict Posts: 477 Karma: 1001951 Join Date: Aug 2008 Device: Cybook Gen3 [512mb, FW: 1.5]	The 3 folders being created on the SD-card has nothing to do with the update working or not. The folders are created everytime you insert a fresh card. From the way you do not seem to be 100% sure if the update was made I am pretty sure it wasn't. You have to keep the center button pressed once the first boot screen is shown. You will get a completely new screen that explicitly sais that the firmware is being updated - with a processbar being shown. It takes a while and you will end up with a completely clean device.

04-18-2009, 03:09 PM	#3
FrancisT Member Posts: 23 Karma: 65 Join Date: Mar 2008 Device: Cybook, Toshiba NB100	Thanks Pulp. That was the hint I needed to figure out that the update_kernal file wasn't being correctly copied onto the SD card. Fortunately it seems like Bookeen's software deletes 0 byte files called update_kernel instead of trying to run them. Got the file on right and then indeed it updated and I now have a happy blank Cybook

04-19-2009, 07:09 AM	#4
Pulp Palm Addict Posts: 477 Karma: 1001951 Join Date: Aug 2008 Device: Cybook Gen3 [512mb, FW: 1.5]	Happy to hear that it worked - make sure to always use your PCs "safely remove hardware"-feature after you copied anything to (or deleted from) your Cybook - it makes sure the memory does not get corrupted!

04-19-2009, 07:15 AM	#5
FrancisT Member Posts: 23 Karma: 65 Join Date: Mar 2008 Device: Cybook, Toshiba NB100	I am normally very very careful about this. The original wiping occured because I didn't want the cybook switched on while recharging and so I disconnected it. Unfortunately it really had 0 juice left and died after being disconnected. The SD card issue appears to be a "feature" of my version of linux (xubuntu 8.04) which is that it doesn't seem to properly flush the write cache on my even when I do the remove safely option when using the built in SD slot on my laptop. Now I know and so I can work around this.

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