root file system

[saida]

hi

i am doing porting linux to sabresd board (booting from sd card)

1.u-boot (ok)

2.kernel and dtb (ok)

3.rootfile(ramdisk) system based on busy box (not ok)

i followed this from i.mx6 community "busy box on i.mx6 in few commands"

1. can any one give the detail procedure

for rootfs based on initramfs,jffs2 because i want to test it from all flash memories on board (spi flash,eMMC,sd card and nor flash)

2. i want to use console as a display for kernel how to do it

3. is it possible to port ubuntu on this board as it operates like normal pc linux os(what is the procedure for that)

all this i am doing seperately downloading all file from net(with out yocto)

i am added nor flash in my custom board then what are the changes needed in u-boot and linux config files

4. i am designing one more board based on i.mx6 Quad core replacing with i.mx6 dual lite board what are precuations to be taken care?

thanks and regards

saida

[igorpadykov]

Hi saida

please look at

https://community.nxp.com/docs/DOC-95003 

busybox on the i.MX6 sabre sd platform in a few commands 

also one can check

Trusty Ubuntu for i.MX6 boards - Boundary Devices 

for i.MX6Q/DL differencies

AN4397 Common Hardware Design for i.MX 6Dual/6Quad and i.MX 6Solo/6DualLite

https://www.nxp.com/docs/en/application-note/AN4397.pdf 

Best regards
igor
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[saida]

hi igorpadykov

its working

but i want to make it standalone using parallel nor flash memory

my custom board is based on sabresd board and i added parallel nor flash on EIM bus (8MB)

i can flash do u-boot.imx and kernel image on nor flash but i want to mount rootfs on it

how i can do this can you send any docs regarding this ?

thank you

regards

Saida

[saida]

hi igorpadykov

i will try and come back to you

thank you

regards saida