linux - Kernel and Rootfs booting through tftp -

-

task: load kernel , rootfs image , execute ram without storing onto spi flash

i loaded flashable image (zimage @ 0x200000) , flashable rootfs (jffs2 @ 0x200000+offset)

tftp zimage 0x200000 tftp jffs2 0x200000+offset bootm 0x200000 0x200000+offset

it giving me error:

root-nfs: no nfs server available, giving up. vfs: unable mount root fs via nfs, trying floppy. vfs: cannot open root device "ram0" or unknown-block(2,0) please append correct "root=" boot option; here available partitions: 1f00        256 mtdblock0 (driver?) 1f01        256 mtdblock1 (driver?) 1f02       2048 mtdblock2 (driver?) 1f03      13824 mtdblock3 (driver?) kernel panic - not syncing: vfs: unable mount root fs on unknown-block(2,0)

and : bad magic number

any appreciated

@sawdust, right. jffs2 cannot used in ram if initrd or initramfs.

i loaded both images onto ram , executed onto ram based on ext2 filesystem.

bootargs: setenv bootargs root=/dev/ram0 console=ttymcs mem=64m@0x0 init=/bin/sh


Comments

Post a Comment

Popular posts from this blog

javascript - How to get current YouTube IDs via iMacros? -

-
i want viewed youtube video id , save csv via imacros, gets nothing. here js code: var videoid; videoid ="code:"; videoid +="url goto=https://www.youtube.com/watch?v=dbnywxdz_pa"+"\n"; videoid +="add !extract {{!urlcurrent}}"+"\n"; videoid +="set !var1 eval(\"var s=\"{{!urlcurrent}}\"; s.match((?<=watch\\?v=|/videos/|embed\\/)[^#\\&\\?]*);s[0]; \")"+"\n"; videoid +="add !extract {{!var1}}"+"\n"; videoid +="saveas type=extract folder=* file=url.csv"+"\n"; try this: var videoid = "url goto=https://www.youtube.com/watch?v=dbnywxdz_pa" + "\n"; videoid += "set !extract {{!urlcurrent}}" + "\n"; videoid += 'set !extract eval("\'{{!extract}}\'.match(/v=(.{11})/)[1];")' + "\n"; videoid += "saveas type=extract folder=* file=url.csv" + "\n"; iimplay
Read more

c# - Maintaining a program folder in program files out of date? -

-
for program i'm writing in vs c# wpf need store user related information on user's computer. far knew has been done creating folder in c:\program files , adding whatever program related info folder in subfolders or whatever. after doing browsing came across lot of people saying method out of date because access may denied create folder there, works administrative accounts, etc.. 1 site suggested saving c:\users\username\appdata\roaming or c:\users\username\appdata\local. question best , date method saving program data users computer? also take @ msdn article . it uwp apps have general idea put if developing wpf app. you may need these folders: environment.specialfolder.applicationdata environment.specialfolder.localapplicationdata environment.specialfolder.commonapplicationdata
Read more

emulation - Android map show my location didn't work -

-
i have been struggle current location in google map, tried official map demo, not working also. shows getmylocation button on upper right, didn't show blue dot on map current location. here code , i'm using emulator target api 23, guess may emulator's problem since code download directly github. advice appreciated. [screenshot][1] package com.example.mapdemo; import com.google.android.gms.maps.googlemap; import com.google.android.gms.maps.googlemap.onmylocationbuttonclicklistener; import com.google.android.gms.maps.onmapreadycallback; import com.google.android.gms.maps.supportmapfragment; import android.manifest; import android.content.pm.packagemanager; import android.os.bundle; import android.support.annotation.nonnull; import android.support.v4.app.activitycompat; import android.support.v4.content.contextcompat; import android.support.v7.app.appcompatactivity; import android.widget.toast; /** * demo
Read more