Re: [U-Boot-Users] decrease boot time
Am 2005-02-12 23:30 +0100 schrieb Wolfgang Denk:
OK - then I recommend to _increase_ teh image size by NOT compressing the Linux kernel. This way we get the fastest boot times on most systems. Also, turn of checksum verification (setenv verify no).
I forgot this:
What Image should I intend to boot with u-boot? Wait, the mkImage prog is run with Image instead of zImage, right? I tried this already a couple of weeks ago, but did not solve problems. The "Image"? What has to be enabled in u-boot so it gets along with this type of image?
Konsti
In message 20050213133833.GE13453@synertronixx3 you wrote:
What Image should I intend to boot with u-boot?
The output file of your invocation of the "mkimage" command.
Wait, the mkImage prog is run with Image instead of zImage, right?
If you mean that (1) gzip Image >foo and foo == zImage and (2) you pass the option "-C none" when calling mkimage - then the answer is yes.
I tried this already a couple of weeks ago, but did not solve problems.
It did not solve which problems ? ;-)
The "Image"? What has to be enabled in u-boot so it gets along with this type of image?
Nothing has to be added or enabled. Everything is there ready to be used.
Best regards,
Wolfgang Denk
Am 2005-02-13 16:20 +0100 schrieb Wolfgang Denk:
If you mean that (1) gzip Image >foo and foo == zImage and (2) you pass the option "-C none" when calling mkimage - then the answer is yes.
OK, I will have to look at this and inspect Makefiles.
I tried this already a couple of weeks ago, but did not solve problems.
It did not solve which problems ? ;-)
*errr* _I_ did not solve problems booting uncompressed kernel images, this time I will get it.
Nothing has to be added or enabled. Everything is there ready to be used.
I actually remember wondering over the "if (verify)" but did not have time to find out the name of the config option :/
Konsti
In message 20050214121117.GB13736@synertronixx3 you wrote:
I actually remember wondering over the "if (verify)" but did not have time to find out the name of the config option :/
It's not a config option, it's an environment variable, so you can adjust it at run-time as needed. And it's even documented - see http://www.denx.de/twiki/bin/view/DULG/UBootEnvVariables
Best regards,
Wolfgang Denk
participants (2)
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Konstantin Kletschke -
Wolfgang Denk