Qi - Revision history

Glenn: wiki

2012-02-10T08:45:43Z

wiki

Glenn: +{{Bootloader}}

2012-02-10T08:06:21Z

+{{Bootloader}}

Lindi: add links to debian qi package page and git tree

2011-10-20T13:46:44Z

add links to debian qi package page and git tree

Lindi: debian has qi now

2011-10-20T13:45:07Z

debian has qi now

Niebert: /* Advantages of Qi */

2010-11-26T08:36:27Z

‎Advantages of Qi

Niebert: /* Advantages of Qi */

2010-11-26T08:35:27Z

‎Advantages of Qi

Gena2x: /* Advantages of Qi */

2010-11-21T20:40:50Z

‎Advantages of Qi

Gena2x: /* About Qi */

2010-11-21T20:40:19Z

‎About Qi

Gena2x: /* Testing speed improvements */

2010-11-21T20:27:47Z

‎Testing speed improvements

Niebert at 11:21, 19 November 2010

2010-11-19T11:21:24Z

@@ Line 1: / Line 1: @@
 {{Languages|Qi}}
 {{Bootloader}}
-[[image:Screenshot-Qi.png|frame|Qi Boot messages]] Qi is a lightweight replacement for the [[Uboot|uBoot]] bootloader with everything that doesn't assist "loading" and "booting" Linux stripped out. Distributions provide tar.gz-images of their root file system, that can be uncompressed on a MicroSD-card and Qi boots stable that distribution just by inserting the MicroSD in your freerunnner. E.g. changing the distribution from [[SHR]] to [[QtMoko]] can be done just by replacing one MicroSD (SHR) with an other MicroSD card (QtMoko) without using the boot menu.
+[[image:Screenshot-Qi.png|frame|Qi Boot messages]] Qi is a lightweight replacement for the [[U-Boot]] bootloader with everything that doesn't assist "loading" and "booting" Linux stripped out. Distributions provide tar.gz-images of their root file system, that can be uncompressed on a MicroSD-card and Qi boots stable that distribution just by inserting the MicroSD in your freerunnner. E.g. changing the distribution from [[SHR]] to [[QtMoko]] can be done just by replacing one MicroSD (SHR) with an other MicroSD card (QtMoko) without using the boot menu.
 {| cellspacing="0" class="sortable wikitable" border="1" style="font-size: 85%; text-align: left; width: auto; background:#CCCCC;"
@@ Line 57: / Line 57: @@
 * If any error happens, you should decode LEDs, in u-boot you can just read message
 * Complete non-flexible setup. Impossible to change default behavior without recompilation, so if it is compiled to boot from nand, you always have to press key to boot sd.
-* Bootloader unique to openmoko, while u-boot is universal widely used software, so methods
+* Bootloader unique to openmoko, while U-Boot is universal widely used software, so methods
 of working with other devices are applicable to openmoko, like newer patches.
 * u-boot supports dfu so you can flash anything anywhere, qi doesn't support it, so qi is useless without NOR u-boot.

← Older revision		Revision as of 08:06, 10 February 2012
Line 1:		Line 1:
	{{Languages\|Qi}}		{{Languages\|Qi}}
		+	{{Bootloader}}
	[[image:Screenshot-Qi.png\|frame\|Qi Boot messages]] Qi is a lightweight replacement for the [[Uboot\|uBoot]] bootloader with everything that doesn't assist "loading" and "booting" Linux stripped out. Distributions provide tar.gz-images of their root file system, that can be uncompressed on a MicroSD-card and Qi boots stable that distribution just by inserting the MicroSD in your freerunnner. E.g. changing the distribution from [[SHR]] to [[QtMoko]] can be done just by replacing one MicroSD (SHR) with an other MicroSD card (QtMoko) without using the boot menu.		[[image:Screenshot-Qi.png\|frame\|Qi Boot messages]] Qi is a lightweight replacement for the [[Uboot\|uBoot]] bootloader with everything that doesn't assist "loading" and "booting" Linux stripped out. Distributions provide tar.gz-images of their root file system, that can be uncompressed on a MicroSD-card and Qi boots stable that distribution just by inserting the MicroSD in your freerunnner. E.g. changing the distribution from [[SHR]] to [[QtMoko]] can be done just by replacing one MicroSD (SHR) with an other MicroSD card (QtMoko) without using the boot menu.

@@ Line 17: / Line 17: @@
 |??
 |apt-get install qi
+|[http://packages.debian.org/qi package page], [http://anonscm.debian.org/gitweb/?p=pkg-fso/qi.git GIT]
 |-
 |QtMoko

@@ Line 16: / Line 16: @@
 |Debian
 |??
+|apt-get install qi
+|
 |-

@@ Line 45: / Line 45: @@
 Its advantages comparing to the [[Uboot|u-boot Openmoko port]] are:
 * actively developed (u-boot on GTA02 is deprecated)<br/>ATM qi is not developed, but supported, but main u-boot branch is really developed
-* easier configuration, more robust and predictable
+* easier configuration, more robust and predictable actually it needs to be recompile to change kernel parameters, nothing really robust or predictable
- actually it need recompile to change kernel parameters, nothing really robust or predictable
+* SD and SDHC cards supported properly with partitions of any size as in u-boot
-* SD and SDHC cards supported properly with partitions of any size
+* kernel size is detected by checking the start of the kernel image, so large (>2M) kernels are supported without tweaking or loading more than needed procedure of changing kernel size in u-boot is not 'tweaking', just configuration
- as in u-boot
 * kernel size is detected by checking the start of the kernel image, so large (>2M) kernels are supported without tweaking or loading more than needed
- procedure of changing kernel size in u-boot is not 'tweaking', just configuration
 * Very fast, simple boot direct to Linux

← Older revision		Revision as of 20:27, 21 November 2010
Line 243:		Line 243:

	== Testing speed improvements ==		== Testing speed improvements ==
		+
		+	This measurement is inappropriate. Modern qtmoko boots under 1 minute with any bootloader,
		+	and bootloader in general has no relation to boot speed expect may
		+	be 5 seconds pause before booting kernel

	Stopwatch results on Qi (error is approx ±1/2 second):		Stopwatch results on Qi (error is approx ±1/2 second):

@@ Line 12: / Line 12: @@
 | style="background:#88FF88;"|YES
 |[http://build.shr-project.org/shr-testing/images/om-gta02/ full-om-gta02.tar.gz]
-|Download Link contain an appropriate Qi version too
+|Download Link contains an appropriate Qi version too
 |-
 |Debian
@@ Line 22: / Line 22: @@
 |style="background:#88FF88;"|YES
 |[http://sourceforge.net/projects/qtmoko/files/ qtmoko-debian-v26.tar.gz]
-|Download Link contain a Qi version for experimental release
+|Download Link contains a Qi version for experimental release
 |-
 |Android
 | style="background:#FF8888;"|NO
 |see [http://wiki.openmoko.org/wiki/Manuals/Android Android Manual] for further information
-|Installer package available, that uses Qi
+|Installer is available, that installs Qi
 |-
 |Hackable