Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Kobo Reader > Kobo Developer's Corner

Notices

Reply
 
Thread Tools Search this Thread
Old 05-29-2013, 12:22 PM   #16
jlynton
Addict
jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.jlynton reads for the sheer pleasure of reading.
 
Posts: 255
Karma: 125600
Join Date: Feb 2012
Device: aura
Update:
A week has gone by, and I can confirm that the device is snappier, loading books, opening shelves, finding an author &c. all show a considerable improvement over the FAT32 format.
jlynton is offline   Reply With Quote
Old 05-29-2013, 04:20 PM   #17
filmo
Guru
filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.filmo ought to be getting tired of karma fortunes by now.
 
Posts: 809
Karma: 841284
Join Date: Jun 2011
Device: Kobo Touch, Sony T1, Kobo Mini
Ext 2 or 3 should be made default for Kobo by having a reader format SD card setting while still allowing FAT32. This way everyone can have benefit of using much better modern file system. Why not? Windows
filmo is offline   Reply With Quote
 
Enthusiast
Old 05-29-2013, 09:51 PM   #18
Ken Maltby
Wizard
Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.
 
Ken Maltby's Avatar
 
Posts: 2,779
Karma: 3762337
Join Date: Dec 2009
Location: The Heart of Texas
Device: JetBook Lite, AuraHD, PDA, Eee Transformer
Hmm... so your file handling performance, when working on your Linux PC, with your Linux
OS device, is improved when you change the device's storage to a native Linux file system?

OK.

Luck;
Ken

Last edited by Ken Maltby; 05-29-2013 at 09:55 PM.
Ken Maltby is offline   Reply With Quote
Old 05-30-2013, 04:45 AM   #19
jgoguen
Generally Awesome Person
jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.jgoguen ought to be getting tired of karma fortunes by now.
 
Posts: 646
Karma: 2018502
Join Date: Jan 2013
Location: New Brunswick, Canada
Device: Kobo Glo
Not exactly. Performance improves when switching to a file system that has generally better performance. It just so happens that ext4 was chosen and it just so happens that's a "Linux file system" on a Linux-based device. I suspect that you would also see a (much smaller) performance boost with the exFAT file system if the Kobo shipped with the necessary file system drivers in the kernel. Which it can't cheaply do for exFAT, Microsoft has that locked down with patents. If the device had support for BSD's FFS I would expect even better performance.

The fact that a Linux PC is being used to manage the device is unimportant. You could install ext4 support on your Windows PC or your Mac and see exactly the same performance improvements. Although I think you would have to create the device file system on Linux anyway...
jgoguen is offline   Reply With Quote
Old 05-31-2013, 06:56 PM   #20
DNSB
Bibliophagist
DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.
 
DNSB's Avatar
 
Posts: 1,959
Karma: 5812120
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Aura HD, Glo, Nexus 7 HD, iPad Air
Quote:
Originally Posted by jgoguen View Post
Not exactly. Performance improves when switching to a file system that has generally better performance. It just so happens that ext4 was chosen and it just so happens that's a "Linux file system" on a Linux-based device. I suspect that you would also see a (much smaller) performance boost with the exFAT file system if the Kobo shipped with the necessary file system drivers in the kernel. Which it can't cheaply do for exFAT, Microsoft has that locked down with patents. If the device had support for BSD's FFS I would expect even better performance.

The fact that a Linux PC is being used to manage the device is unimportant. You could install ext4 support on your Windows PC or your Mac and see exactly the same performance improvements. Although I think you would have to create the device file system on Linux anyway...
I used MiniTool Partition Wizard to create an ext2 partition on an SD card, mounted it using ext2Fsd so I could use Calibre to copy files to it and the card works in my Aura. I haven't played with it enough to say if there is a speed increase or not.

Regards,
David
DNSB is online now   Reply With Quote
Old 05-31-2013, 09:09 PM   #21
Ken Maltby
Wizard
Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.
 
Ken Maltby's Avatar
 
Posts: 2,779
Karma: 3762337
Join Date: Dec 2009
Location: The Heart of Texas
Device: JetBook Lite, AuraHD, PDA, Eee Transformer
Quote:
Originally Posted by DNSB View Post
I used MiniTool Partition Wizard to create an ext2 partition on an SD card, mounted it using ext2Fsd so I could use Calibre to copy files to it and the card works in my Aura. I haven't played with it enough to say if there is a speed increase or not.

Regards,
David
I, for one would be very interested in the results. Particularly, as relates to each of
the performance issues that have been exposed here. A large number of files, a large
number of "Shevles", ability to work well with calibre.

Luck;
Ken

Last edited by Ken Maltby; 05-31-2013 at 10:10 PM.
Ken Maltby is offline   Reply With Quote
Old 06-02-2013, 02:29 AM   #22
DNSB
Bibliophagist
DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.
 
DNSB's Avatar
 
Posts: 1,959
Karma: 5812120
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Aura HD, Glo, Nexus 7 HD, iPad Air
Quote:
Originally Posted by Ken Maltby View Post
I, for one would be very interested in the results. Particularly, as relates to each of
the performance issues that have been exposed here. A large number of files, a large
number of "Shevles", ability to work well with calibre.

Luck;
Ken
I've gone back to a FAT32 formatted uSD card. As I've posted elsewhere, I've been having fun with the very slow bootup when I insert an uSD card with 1600+ books on it. The time dropped a bit with the ext2 formatted card but it was a pain having to reformat it each time I did a new test cycle -- SD format tool to wipe the card, Partition Wizard to recreate the ext2 partition and then Ext2FSD to mount the volume.

I don't use shelves -- I'm an old fashioned person and search works for me -- and am only using Calibre now due to issues with cover images for files copied to the uSD card.

Regards,
David
DNSB is online now   Reply With Quote
Old 06-02-2013, 02:14 PM   #23
Ken Maltby
Wizard
Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.
 
Ken Maltby's Avatar
 
Posts: 2,779
Karma: 3762337
Join Date: Dec 2009
Location: The Heart of Texas
Device: JetBook Lite, AuraHD, PDA, Eee Transformer
So, interesting but no clear advantage worth the effort.
Thanks much.

Luck;
Ken
Ken Maltby is offline   Reply With Quote
Old 06-04-2013, 03:31 PM   #24
flowoeB
E-Reader Sammler
flowoeB is on a distinguished road
 
flowoeB's Avatar
 
Posts: 123
Karma: 50
Join Date: Feb 2009
Location: Austria
Device: DR1000S; 505,300,350,600,T1; DX, 3, Fire, PW; Tolino; iPad; Aura
hi,

if I understood correctly, you all were talking about an external uSD card.
is it possible to format the third partition called "KOBOeReader" on the internal sd card to ext3 ?
(i installed a 32GB uSD inside today - working fine but with FAT32)
maybe it can be done even without taking the SD card out of the reader? (I didn't really like to open it...)

I'd like to access the partition with the paragon driver on my Mac
flowoeB is offline   Reply With Quote
Old 06-04-2013, 03:59 PM   #25
Ken Maltby
Wizard
Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.Ken Maltby ought to be getting tired of karma fortunes by now.
 
Ken Maltby's Avatar
 
Posts: 2,779
Karma: 3762337
Join Date: Dec 2009
Location: The Heart of Texas
Device: JetBook Lite, AuraHD, PDA, Eee Transformer
Warning opinion/theory, not verified in practice:

If you can see and manipulate the partitions, you should be able to give it a try.

If you can create a clone of the whole card, still inside your Kobo, from your Mac,
then write the clone image to another 32GB card outside your Kobo, then do the
changes on that card, you could then clone that whole card and then write that
image file onto the 32GB card inside your Kobo. Or you could just open the case
again.

Luck;
Ken
Ken Maltby is offline   Reply With Quote
Old 06-04-2013, 04:17 PM   #26
flowoeB
E-Reader Sammler
flowoeB is on a distinguished road
 
flowoeB's Avatar
 
Posts: 123
Karma: 50
Join Date: Feb 2009
Location: Austria
Device: DR1000S; 505,300,350,600,T1; DX, 3, Fire, PW; Tolino; iPad; Aura
sounds like opening it again is the easier way

so, I will clone the image i made to another sd card - but instead of expanding the fat32 partition I'll expand and format it to ext3.

what file would I have to change to make the aura mount the internal 3rd partition correctly - and will it be seen by the pc (with installed ext3 drivers) when plugged in via usb?
flowoeB is offline   Reply With Quote
Old 06-04-2013, 05:02 PM   #27
tshering
Wizard
tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.tshering ought to be getting tired of karma fortunes by now.
 
Posts: 1,258
Karma: 332560
Join Date: Jun 2012
Device: kobo touch
Quote:
Originally Posted by flowoeB View Post
sounds like opening it again is the easier way
If you a reluctant to open it again, this post might be interesting.

Quote:
Originally Posted by flowoeB View Post
what file would I have to change to make the aura mount the internal 3rd partition correctly - and will it be seen by the pc (with installed ext3 drivers) when plugged in via usb?
I think you have to modify these two files:
etc/init.d/rcS
usr/local/Kobo/udev/usb

Quote:
Originally Posted by flowoeB View Post
and will it be seen by the pc (with installed ext3 drivers) when plugged in via usb?
I am pretty positive about this.
tshering is offline   Reply With Quote
Old 06-04-2013, 05:11 PM   #28
flowoeB
E-Reader Sammler
flowoeB is on a distinguished road
 
flowoeB's Avatar
 
Posts: 123
Karma: 50
Join Date: Feb 2009
Location: Austria
Device: DR1000S; 505,300,350,600,T1; DX, 3, Fire, PW; Tolino; iPad; Aura
thank you, found the initial mount of "onboard" at boot and the rmount after unplugging the usb. I'll simply do a mount without the vfat argument if there is an error on the original mount line... will give it a try tomorrow...
flowoeB is offline   Reply With Quote
Old 06-04-2013, 07:15 PM   #29
PeterT
Taking a break; Fed up
PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.PeterT ought to be getting tired of karma fortunes by now.
 
PeterT's Avatar
 
Posts: 6,675
Karma: 43902502
Join Date: Nov 2007
Location: Toronto
Device: Wife: Touch, Arc, Vox Me: Nexus 7, Glo
Just remember that updated f/w from Kobo will replace those modified scripts, so changes will need to be made to them before the upgrades are allowed to happen.... Otherwise the device might be left in a non functional state.
PeterT is offline   Reply With Quote
Old 06-05-2013, 02:12 AM   #30
flowoeB
E-Reader Sammler
flowoeB is on a distinguished road
 
flowoeB's Avatar
 
Posts: 123
Karma: 50
Join Date: Feb 2009
Location: Austria
Device: DR1000S; 505,300,350,600,T1; DX, 3, Fire, PW; Tolino; iPad; Aura
thank you for the tip.
just accidently broke the display of my aura - old people with their clumsy hands - didn't even get the chance to open it a second time... bummer... ordered a new one so I'll have to wait until it arrives


this is what I changed for testing:
in usb:

Code:
	if [ -e /drivers/$PLATFORM ]; then
		PARTITION=/dev/mmcblk0p3
		MOUNTARGS="noatime,nodiratime"
	fi

	mount -o $MOUNTARGS $PARTITION /mnt/onboard
in rcS:

Code:
mount /dev/mmcblk0p3 /mnt/onboard
I removed the dosfsck lines - I don't want to use any fat formated thingy anymore...

also removed the # for the external sd card in usb and sd

I formated the 3rd partition to ext3 on my mac and restored it from a backup

now I'll wait...

Last edited by flowoeB; 06-05-2013 at 03:11 AM.
flowoeB is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
kindle 3 hardware hacking (micro usb & sd card) damaru Amazon Kindle 5 03-16-2012 08:19 AM
360 Pocketbook 360 and SD card file system error readerreader PocketBook 2 08-29-2011 12:10 AM
K2 system file access dwallbaum Amazon Kindle 2 09-08-2010 04:32 PM
File System Information Adam B. iRex 0 10-29-2008 08:46 AM
how to clean more disk space in root file system to upgrade system chinaet iRex 1 12-18-2006 03:54 PM


All times are GMT -4. The time now is 09:56 PM.


MobileRead.com is a privately owned, operated and funded community.