Here are the possible scneario's, assuming you have NAND and SD card. 1) Bootloaders, Kernel and RFS on NAND, so you boot entirely without an SD card 2) Bootloaders, Kernel on NAND, RFS on SD card 3) Bootloaders on NAND, Kernel on VFAT partition and RFS on EXT3 partiion of SD card 4) Bootloaders, Kernel on VFAT partition and RFS on EXT3 partition of SD card
So without knowing what you have access to, it's hard to to tell us which way for you to go. If you have everything you need except the RFS on NAND, then the SD cards makes perfect sense.. Regards -- Ashwin On Tue, May 18, 2010 at 9:38 PM, Weber <qvbs...@gmail.com> wrote: > Thank you for your reply > > I have try a partition ext3 and vfat ,but when I open the > console ,noting happen. > > Actually, I just want to use sd card as my roofs,could this work ? > > Thanks > -Weber > On May 18, 9:03 pm, Akash Choudhari <akas...@gmail.com> wrote: >> Are you partitioning your SD card? You should be using ext3 partition >> for Android FS and VFAT for u-Boot/Bootloader >> >> - Akash >> >> >> >> On Tue, May 18, 2010 at 6:55 AM, Deva R <r.deva...@gmail.com> wrote: >> >> > There are no mmc paritions listed when u boot., only nand paritions are >> > available.., >> > can u share complete bootlog? >> >> >>setenv bootargs root=/dev/block/mmcblk0p1 rw init=/init >> >>console=ttySAC0,115200 >> >> >>1f00 256 mtdblock0 (driver?) >> >>1f01 15104 mtdblock1 (driver?) >> >>1f02 1033216 mtdblock2 (driver?) >> >> > On Tue, May 18, 2010 at 12:29 PM, Weber <qvbs...@gmail.com> wrote: >> >> >> Hi >> >> I want to boot my android system from SD card >> >> and I follow the post, >> >> >>http://groups.google.com/group/android-porting/browse_thread/thread/c... >> >> >> In the post abhishek srivastav said : >> >> >> Please make sure that you follow following steps for booting Android >> >> from SD >> >> card. >> >> >> -Your bootargs<boot parameters in bootloader> should be set to SD >> >> card. <<<< >> >> -For booting Android from SD card your SD card should be formatted in >> >> ext2 >> >> format. >> >> -Copy the following files/directory from *out/target/product/generic* >> >> * >> >> * >> >> *cp -a root/* <SDCARD> >> >> *cp -a data/* <SDCARD> >> >> cp -a system/* <SDCARD> >> >> >> I just want to mount sd card as my rootfs ,so I follow the steps ,but >> >> it can not mount ,complaint that : >> >> VFS: Cannot open root device "block/mmcblk0p1" or unknown-block(2,0) >> >> Please append a correct "root=" boot option; here are the available >> >> partitions: >> >> 1f00 256 mtdblock0 (driver?) >> >> 1f01 15104 mtdblock1 (driver?) >> >> 1f02 1033216 mtdblock2 (driver?) >> >> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown- >> >> block(2,0) >> >> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown- >> >> block(2,0) >> >> >> BTW,I use uboot ,and my boot args are: >> >> setenv bootargs root=/dev/block/mmcblk0p1 rw init=/init >> >> console=ttySAC0,115200 >> >> >> Could anyone tell me how to do ? >> >> >> Thanks >> >> ---Weber >> >> >> -- >> >> unsubscribe: android-porting+unsubscr...@googlegroups.com >> >> website:http://groups.google.com/group/android-porting >> >> > -- >> > unsubscribe: android-porting+unsubscr...@googlegroups.com >> > website:http://groups.google.com/group/android-porting >> >> -- >> unsubscribe: android-porting+unsubscr...@googlegroups.com >> website:http://groups.google.com/group/android-porting > > -- > unsubscribe: android-porting+unsubscr...@googlegroups.com > website: http://groups.google.com/group/android-porting > -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting
