Thanks Zoran and Tom, I can use dd to install the image to SD card on IMX EVK, now I need to install the image to NAND flash of a customized IMX device via USB HID, it cannot use the dd, IMX provided UUU utility which I am new to it and I have to decompose the image to zImage-initramfs and losetup -P does work, dd does not work either.
$ losetup -P dev-image-20190528085324.rootfs.wic losetup: solar-dev-image-solarevk-20190518084330.rootfs.wic: failed to use device: No such device Thanks for your helps anyway. Kind regards, - jupiter On 5/31/19, Tom Rini <tr...@konsulko.com> wrote: > On Fri, May 31, 2019 at 10:21:40PM +1000, JH wrote: >> Hi, >> >> What command and tools to extract files from Yocto / bitbake image >> such as dev-image-20190528085324.rootfs.wic.gz? >> >> I am using IMX UUU to install dev-image-20190528085324.rootfs.wic.gz >> to IMX, I was advised to extract the archive and use "uuu <script >> name>" or "uuu u-boot-dtb.imx" to get bootloader work first. > > A wic image is just another way of saying it's a raw disk image. > Decompress it, losetup -P (generally useful, but not needed this time) > and dd out the contents you want. > > -- > Tom > -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
