ramdisk イメージ - gcluster (dsm232) 解析ログ

ramdisk イメージ

つくるところ

ott/6611L_TigaMini/create_fsimage/mkramdisk.sh

${CRISP_RELEASE}/tools/bin/mkimage -A arm -O linux -T ramdisk -C gzip -a 0x02500000 -e 0x02500000 -n "ARM Linux RAMDisk" -d $FILENAME'.gz' $OUTPUT

OUTPUT:ramdisk.img

FILENAME:rootfs.ext2

この ramdisk.img 、 crisprelease/buildroot/boot/uboot/2011-06/uboot-patch/uboot-2011.06-cavium-beijing.patch 2521行目、USBストレージからオートアップデートできるような・・・

code:u-boot

+/*

+ * this is called from board_init() after the hardware has been set up

+ * and is usable. That seems like a good time to do this.

+ * Right now the return value is ignored.

+ */

+int do_auto_update(int size)

+ block_dev_desc_t *stor_dev;

+ long sz;

+ int i, j, res, bitmap_first, old_ctrlc;

+ char *env;

+ long start, end;

+ long actual_size;

+ image_header_t *hdr;

+ char * addr;

+ char st9, len9;

+ char *ptr = (char *)CONFIG_USB_UPGRADE_DATA_ADDR;

+ char *ep;

+ char *bootargs = NULL;

+ char *bootcmd = NULL;

+ /* initialize the array of file names */

+ memset(aufile, 0, sizeof(aufile));

+ aufileIDX_FIRMWARE = AU_FIRMWARE;

+ aufileIDX_KERNEL = AU_KERNEL;

+ aufileIDX_RAMDISK = AU_RAMDISK;

+ /* initialize the array of flash sizes */

+ memset(ausize, 0, sizeof(ausize));