Talk:Qi

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(will it boot jffs2 on flash ?)
(Does "skip partition" work at all?: speling error)
 
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:"Surprisingly, the later segments of booting (desktop) were also noticeably faster than with uBoot"
 
:"Surprisingly, the later segments of booting (desktop) were also noticeably faster than with uBoot"
 
How many times was this experiment done, by how many different people? For empirical stuff, more data is invariably better. [[User:Sm|Sm]] 22:04, 7 January 2009 (UTC)
 
How many times was this experiment done, by how many different people? For empirical stuff, more data is invariably better. [[User:Sm|Sm]] 22:04, 7 January 2009 (UTC)
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Probably it is because Qi by default boot the kernel in quiet mode. Boot messages in framebuffer are quite slow. [[User:Kiwi|Kiwi]] 02:57, 19 July 2009 (UTC)
  
 
== large uSD cards support  ==
 
== large uSD cards support  ==
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With Qi all the different partitions in nand are not needed, could these be put together to allow one larger rootfs? There is config, kernel and splash which could be merged into the rootfs partition. It should also be possible to shrink the the partition of u-boot. If this is a suitable suggestion is someone able to write a short HOWTO how to accomplish that for GTA01 and GTA02?
 
With Qi all the different partitions in nand are not needed, could these be put together to allow one larger rootfs? There is config, kernel and splash which could be merged into the rootfs partition. It should also be possible to shrink the the partition of u-boot. If this is a suitable suggestion is someone able to write a short HOWTO how to accomplish that for GTA01 and GTA02?
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== Does "skip partition" work at all? ==
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I have tried the noboot file (/boot/noboot-GTA02 in my case) and it seems to work, because that partition (p2 in my case) isn't booted. However, Qi doesn't try (or isn't able to) boot p3. p3 contains the same files as p2. [[User:Tingo|Tingo]]

Latest revision as of 17:16, 18 September 2009

Contents

[edit] will it boot jffs2 on flash ?

--kd8ikt

Install Qi on you NAND flash. You can still boot whatever distro you've got on internal flash using the NOR bootloader.from here So I think it should still be able to do jffs2, but I'm not sure. Bram


If you install Qi on NAND, to boot on NAND, on the SD Card (for Android, for example), you need to press the POWER button, then the AUX - one time only, rapidly - if you stand too long it'll boot on the next uImage. Maelvon 14:00, 31 March 2009 (UTC)

[edit] dmesg output

With `uname -a` = "Linux om-gta02 2.6.24 #1 PREEMPT Tue Dec 2 15:02:59 CST 2008 armv4tl unknown", dmesg outputs s3c2440 on GTA02 Revision: 0360. qi-s3c2442-master works fine on it.

[edit] post-init booting stuff is faster?

21 October 2008, MinhHaDuong wrote:

"Surprisingly, the later segments of booting (desktop) were also noticeably faster than with uBoot"

How many times was this experiment done, by how many different people? For empirical stuff, more data is invariably better. Sm 22:04, 7 January 2009 (UTC)

Probably it is because Qi by default boot the kernel in quiet mode. Boot messages in framebuffer are quite slow. Kiwi 02:57, 19 July 2009 (UTC)

[edit] large uSD cards support

How large does "large uSD cards support" mean? Is there any accurate information available on this?

[edit] Choosing a Kernel, difficult as described

What I found difficult was "If a user presses the AUX button after successful partition mount and before start of the kernel pull (that is, while the red LED is on), this boot possibility is skipped (and GTA02 owners can feel vibration)". Using Qi qi-s3c2442-master-hist_1665e43677c005a8.udfu (downloaded today Feb22) and with only one usable partition on the card, the red led flashed very quickly twice, and slower once. No amount of pressing AUX during the led flashes enabled the defective item on the partition to be bypassed. However pressing AUX as soon as I was physically able after pressing POW to start worked. It was in the time before any flashes, and I held it till after the 3 flashes. At that point I saw a familiar response, Great Relief. (Clare).

[edit] Simplify nand partitions?

With Qi all the different partitions in nand are not needed, could these be put together to allow one larger rootfs? There is config, kernel and splash which could be merged into the rootfs partition. It should also be possible to shrink the the partition of u-boot. If this is a suitable suggestion is someone able to write a short HOWTO how to accomplish that for GTA01 and GTA02?

[edit] Does "skip partition" work at all?

I have tried the noboot file (/boot/noboot-GTA02 in my case) and it seems to work, because that partition (p2 in my case) isn't booted. However, Qi doesn't try (or isn't able to) boot p3. p3 contains the same files as p2. Tingo

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will it boot jffs2 on flash ?

--kd8ikt

Install Qi on you NAND flash. You can still boot whatever distro you've got on internal flash using the NOR bootloader.from here So I think it should still be able to do jffs2, but I'm not sure. Bram


If you install Qi on NAND, to boot on NAND, on the SD Card (for Android, for example), you need to press the POWER button, then the AUX - one time only, rapidly - if you stand too long it'll boot on the next uImage. Maelvon 14:00, 31 March 2009 (UTC)

dmesg output

With `uname -a` = "Linux om-gta02 2.6.24 #1 PREEMPT Tue Dec 2 15:02:59 CST 2008 armv4tl unknown", dmesg outputs s3c2440 on GTA02 Revision: 0360. qi-s3c2442-master works fine on it.

post-init booting stuff is faster?

21 October 2008, MinhHaDuong wrote:

"Surprisingly, the later segments of booting (desktop) were also noticeably faster than with uBoot"

How many times was this experiment done, by how many different people? For empirical stuff, more data is invariably better. Sm 22:04, 7 January 2009 (UTC)

large uSD cards support

How large does "large uSD cards support" mean? Is there any accurate information available on this?

Choosing a Kernel, difficult as described

What I found difficult was "If a user presses the AUX button after successful partition mount and before start of the kernel pull (that is, while the red LED is on), this boot possibility is skipped (and GTA02 owners can feel vibration)". Using Qi qi-s3c2442-master-hist_1665e43677c005a8.udfu (downloaded today Feb22) and with only one usable partition on the card, the red led flashed very quickly twice, and slower once. No amount of pressing AUX during the led flashes enabled the defective item on the partition to be bypassed. However pressing AUX as soon as I was physically able after pressing POW to start worked. It was in the time before any flashes, and I held it till after the 3 flashes. At that point I saw a familiar response, Great Relief. (Clare).

Simplify nand partitions?

With Qi all the different partitions in nand are not needed, could these be put together to allow one larger rootfs? There is config, kernel and splash which could be merged into the rootfs partition. It should also be possible to shrink the the partition of u-boot. If this is a suitable suggestion is someone able to write a short HOWTO how to accomplish that for GTA01 and GTA02?