网站开发专业的领军人物,临海受欢迎营销型网站建设,seo品牌,做网站要会那些ps比较头疼的是rv1106 ubuntu镜像的分区表不是标准的gpt格式#xff0c;镜像烧写后rootfs是6gb,
sd 卡是32gb#xff0c;想要使用更多空间#xff0c;需要进行分区调整
最后效果请看#xff1a; 操作步骤的尝试
#xff08;1#xff09;烧录sd卡
#xff08;2#xf…比较头疼的是rv1106 ubuntu镜像的分区表不是标准的gpt格式镜像烧写后rootfs是6gb,
sd 卡是32gb想要使用更多空间需要进行分区调整
最后效果请看 操作步骤的尝试
1烧录sd卡
2DG 打开SD卡发现问题没有任何分区
3用DG找到rootfs分区记录其前面一共有多少内容
4winhex备份rootfs之前的所有数据大概800多MB
5将sd卡重建一下gpt分区表只保留rootfs
6扩容rootfs到26GB这个数值必须是26*1024*1024*1024字节
7重新将4中备份数据刷回sd卡的rootfs前面的位置此时已经完成扩容但需要调整rk私有分区表
8用hex工具查看一下env.img 完全可以调整从6G调整为26G
9上电结果是进不去系统
10连接串口发现如下错误 这样看应该是修改的env.img 部分的crc校验和错了
11从sdk代码搜索这条日志的代码 12将crc代码扒出来自己写一个crc校验工具
#include stdio.h
#include string.h
#include newusing namespace std;typedef unsigned int uint32_t;
typedef unsigned char Bytef;
typedef unsigned char uint8_t;
typedef unsigned int uInt;#define cpu_to_le32(x) x
#define le32_to_cpu(x) xuint32_t htonl(uint32_t x)
{uint32_t r 0;unsigned char* a (unsigned char*)x;unsigned char* b (unsigned char*)r;b[0] a[3];b[1] a[2];b[2] a[1];b[3] a[0];return r;
}/** This file is derived from crc32.c from the zlib-1.1.3 distribution* by Jean-loup Gailly and Mark Adler.*//* crc32.c -- compute the CRC-32 of a data stream* Copyright (C) 1995-1998 Mark Adler* For conditions of distribution and use, see copyright notice in zlib.h*/#ifdef USE_HOSTCC
#include arpa/inet.h
#else#endif#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
#include watchdog.h
#endif#define local static
#define ZEXPORT /* empty */#define tole(x) cpu_to_le32(x)#ifdef DYNAMIC_CRC_TABLElocal int crc_table_empty 1;
local uint32_t crc_table[256];
local void make_crc_table OF((void));/*Generate a table for a byte-wise 32-bit CRC calculation on the polynomial:x^32x^26x^23x^22x^16x^12x^11x^10x^8x^7x^5x^4x^2x1.Polynomials over GF(2) are represented in binary, one bit per coefficient,with the lowest powers in the most significant bit. Then adding polynomialsis just exclusive-or, and multiplying a polynomial by x is a right shift byone. If we call the above polynomial p, and represent a byte as thepolynomial q, also with the lowest power in the most significant bit (so thebyte 0xb1 is the polynomial x^7x^3x1), then the CRC is (q*x^32) mod p,where a mod b means the remainder after dividing a by b.This calculation is done using the shift-register method of multiplying andtaking the remainder. The register is initialized to zero, and for eachincoming bit, x^32 is added mod p to the register if the bit is a one (wherex^32 mod p is px^32 x^26...1), and the register is multiplied mod p byx (which is shifting right by one and adding x^32 mod p if the bit shiftedout is a one). We start with the highest power (least significant bit) ofq and repeat for all eight bits of q.The table is simply the CRC of all possible eight bit values. This is allthe information needed to generate CRCs on data a byte at a time for allcombinations of CRC register values and incoming bytes.
*/
local void make_crc_table()
{uint32_t c;int n, k;uLong poly; /* polynomial exclusive-or pattern *//* terms of polynomial defining this crc (except x^32): */static const Byte p[] { 0,1,2,4,5,7,8,10,11,12,16,22,23,26 };/* make exclusive-or pattern from polynomial (0xedb88320L) */poly 0L;for (n 0; n sizeof(p) / sizeof(Byte); n)poly | 1L (31 - p[n]);for (n 0; n 256; n){c (uLong)n;for (k 0; k 8; k)c c 1 ? poly ^ (c 1) : c 1;crc_table[n] tole(c);}crc_table_empty 0;
}
#else/* * Table of CRC-32s of all single-byte values (made by make_crc_table)*/static const uint32_t crc_table[256] {
tole(0x00000000L), tole(0x77073096L), tole(0xee0e612cL), tole(0x990951baL),
tole(0x076dc419L), tole(0x706af48fL), tole(0xe963a535L), tole(0x9e6495a3L),
tole(0x0edb8832L), tole(0x79dcb8a4L), tole(0xe0d5e91eL), tole(0x97d2d988L),
tole(0x09b64c2bL), tole(0x7eb17cbdL), tole(0xe7b82d07L), tole(0x90bf1d91L),
tole(0x1db71064L), tole(0x6ab020f2L), tole(0xf3b97148L), tole(0x84be41deL),
tole(0x1adad47dL), tole(0x6ddde4ebL), tole(0xf4d4b551L), tole(0x83d385c7L),
tole(0x136c9856L), tole(0x646ba8c0L), tole(0xfd62f97aL), tole(0x8a65c9ecL),
tole(0x14015c4fL), tole(0x63066cd9L), tole(0xfa0f3d63L), tole(0x8d080df5L),
tole(0x3b6e20c8L), tole(0x4c69105eL), tole(0xd56041e4L), tole(0xa2677172L),
tole(0x3c03e4d1L), tole(0x4b04d447L), tole(0xd20d85fdL), tole(0xa50ab56bL),
tole(0x35b5a8faL), tole(0x42b2986cL), tole(0xdbbbc9d6L), tole(0xacbcf940L),
tole(0x32d86ce3L), tole(0x45df5c75L), tole(0xdcd60dcfL), tole(0xabd13d59L),
tole(0x26d930acL), tole(0x51de003aL), tole(0xc8d75180L), tole(0xbfd06116L),
tole(0x21b4f4b5L), tole(0x56b3c423L), tole(0xcfba9599L), tole(0xb8bda50fL),
tole(0x2802b89eL), tole(0x5f058808L), tole(0xc60cd9b2L), tole(0xb10be924L),
tole(0x2f6f7c87L), tole(0x58684c11L), tole(0xc1611dabL), tole(0xb6662d3dL),
tole(0x76dc4190L), tole(0x01db7106L), tole(0x98d220bcL), tole(0xefd5102aL),
tole(0x71b18589L), tole(0x06b6b51fL), tole(0x9fbfe4a5L), tole(0xe8b8d433L),
tole(0x7807c9a2L), tole(0x0f00f934L), tole(0x9609a88eL), tole(0xe10e9818L),
tole(0x7f6a0dbbL), tole(0x086d3d2dL), tole(0x91646c97L), tole(0xe6635c01L),
tole(0x6b6b51f4L), tole(0x1c6c6162L), tole(0x856530d8L), tole(0xf262004eL),
tole(0x6c0695edL), tole(0x1b01a57bL), tole(0x8208f4c1L), tole(0xf50fc457L),
tole(0x65b0d9c6L), tole(0x12b7e950L), tole(0x8bbeb8eaL), tole(0xfcb9887cL),
tole(0x62dd1ddfL), tole(0x15da2d49L), tole(0x8cd37cf3L), tole(0xfbd44c65L),
tole(0x4db26158L), tole(0x3ab551ceL), tole(0xa3bc0074L), tole(0xd4bb30e2L),
tole(0x4adfa541L), tole(0x3dd895d7L), tole(0xa4d1c46dL), tole(0xd3d6f4fbL),
tole(0x4369e96aL), tole(0x346ed9fcL), tole(0xad678846L), tole(0xda60b8d0L),
tole(0x44042d73L), tole(0x33031de5L), tole(0xaa0a4c5fL), tole(0xdd0d7cc9L),
tole(0x5005713cL), tole(0x270241aaL), tole(0xbe0b1010L), tole(0xc90c2086L),
tole(0x5768b525L), tole(0x206f85b3L), tole(0xb966d409L), tole(0xce61e49fL),
tole(0x5edef90eL), tole(0x29d9c998L), tole(0xb0d09822L), tole(0xc7d7a8b4L),
tole(0x59b33d17L), tole(0x2eb40d81L), tole(0xb7bd5c3bL), tole(0xc0ba6cadL),
tole(0xedb88320L), tole(0x9abfb3b6L), tole(0x03b6e20cL), tole(0x74b1d29aL),
tole(0xead54739L), tole(0x9dd277afL), tole(0x04db2615L), tole(0x73dc1683L),
tole(0xe3630b12L), tole(0x94643b84L), tole(0x0d6d6a3eL), tole(0x7a6a5aa8L),
tole(0xe40ecf0bL), tole(0x9309ff9dL), tole(0x0a00ae27L), tole(0x7d079eb1L),
tole(0xf00f9344L), tole(0x8708a3d2L), tole(0x1e01f268L), tole(0x6906c2feL),
tole(0xf762575dL), tole(0x806567cbL), tole(0x196c3671L), tole(0x6e6b06e7L),
tole(0xfed41b76L), tole(0x89d32be0L), tole(0x10da7a5aL), tole(0x67dd4accL),
tole(0xf9b9df6fL), tole(0x8ebeeff9L), tole(0x17b7be43L), tole(0x60b08ed5L),
tole(0xd6d6a3e8L), tole(0xa1d1937eL), tole(0x38d8c2c4L), tole(0x4fdff252L),
tole(0xd1bb67f1L), tole(0xa6bc5767L), tole(0x3fb506ddL), tole(0x48b2364bL),
tole(0xd80d2bdaL), tole(0xaf0a1b4cL), tole(0x36034af6L), tole(0x41047a60L),
tole(0xdf60efc3L), tole(0xa867df55L), tole(0x316e8eefL), tole(0x4669be79L),
tole(0xcb61b38cL), tole(0xbc66831aL), tole(0x256fd2a0L), tole(0x5268e236L),
tole(0xcc0c7795L), tole(0xbb0b4703L), tole(0x220216b9L), tole(0x5505262fL),
tole(0xc5ba3bbeL), tole(0xb2bd0b28L), tole(0x2bb45a92L), tole(0x5cb36a04L),
tole(0xc2d7ffa7L), tole(0xb5d0cf31L), tole(0x2cd99e8bL), tole(0x5bdeae1dL),
tole(0x9b64c2b0L), tole(0xec63f226L), tole(0x756aa39cL), tole(0x026d930aL),
tole(0x9c0906a9L), tole(0xeb0e363fL), tole(0x72076785L), tole(0x05005713L),
tole(0x95bf4a82L), tole(0xe2b87a14L), tole(0x7bb12baeL), tole(0x0cb61b38L),
tole(0x92d28e9bL), tole(0xe5d5be0dL), tole(0x7cdcefb7L), tole(0x0bdbdf21L),
tole(0x86d3d2d4L), tole(0xf1d4e242L), tole(0x68ddb3f8L), tole(0x1fda836eL),
tole(0x81be16cdL), tole(0xf6b9265bL), tole(0x6fb077e1L), tole(0x18b74777L),
tole(0x88085ae6L), tole(0xff0f6a70L), tole(0x66063bcaL), tole(0x11010b5cL),
tole(0x8f659effL), tole(0xf862ae69L), tole(0x616bffd3L), tole(0x166ccf45L),
tole(0xa00ae278L), tole(0xd70dd2eeL), tole(0x4e048354L), tole(0x3903b3c2L),
tole(0xa7672661L), tole(0xd06016f7L), tole(0x4969474dL), tole(0x3e6e77dbL),
tole(0xaed16a4aL), tole(0xd9d65adcL), tole(0x40df0b66L), tole(0x37d83bf0L),
tole(0xa9bcae53L), tole(0xdebb9ec5L), tole(0x47b2cf7fL), tole(0x30b5ffe9L),
tole(0xbdbdf21cL), tole(0xcabac28aL), tole(0x53b39330L), tole(0x24b4a3a6L),
tole(0xbad03605L), tole(0xcdd70693L), tole(0x54de5729L), tole(0x23d967bfL),
tole(0xb3667a2eL), tole(0xc4614ab8L), tole(0x5d681b02L), tole(0x2a6f2b94L),
tole(0xb40bbe37L), tole(0xc30c8ea1L), tole(0x5a05df1bL), tole(0x2d02ef8dL)
};
#endif#if 0
/* * This function can be used by asm versions of crc32()*/
const uint32_t * ZEXPORT get_crc_table()
{
#ifdef DYNAMIC_CRC_TABLEif (crc_table_empty) make_crc_table();
#endifreturn (const uint32_t *)crc_table;
}
#endif/* */
# if __BYTE_ORDER __LITTLE_ENDIAN
# define DO_CRC(x) crc tab[(crc ^ (x)) 255] ^ (crc 8)
# else
# define DO_CRC(x) crc tab[((crc 24) ^ (x)) 255] ^ (crc 8)
# endif/* *//* No ones complement version. JFFS2 (and other things ?)* dont use ones compliment in their CRC calculations.*/
uint32_t ZEXPORT crc32_no_comp(uint32_t crc, const Bytef *buf, uInt len)
{const uint32_t *tab crc_table;const uint32_t *b (const uint32_t *)buf;size_t rem_len;
#ifdef DYNAMIC_CRC_TABLEif (crc_table_empty)make_crc_table();
#endifcrc cpu_to_le32(crc);/* Align it */if (((long)b) 3 len) {uint8_t *p (uint8_t *)b;do {DO_CRC(*p);} while ((--len) ((long)p) 3);b (uint32_t *)p;}rem_len len 3;len len 2;for (--b; len; --len) {/* load data 32 bits wide, xor data 32 bits wide. */crc ^ *b; /* use pre increment for speed */DO_CRC(0);DO_CRC(0);DO_CRC(0);DO_CRC(0);}len rem_len;/* And the last few bytes */if (len) {uint8_t *p (uint8_t *)(b 1) - 1;do {DO_CRC(*p); /* use pre increment for speed */} while (--len);}return le32_to_cpu(crc);
}
#undef DO_CRCuint32_t ZEXPORT crc32(uint32_t crc, const Bytef *p, uInt len)
{return crc32_no_comp(crc ^ 0xffffffffL, p, len) ^ 0xffffffffL;
}/** Calculate the crc32 checksum triggering the watchdog every chunk_sz bytes* of input.*/
uint32_t ZEXPORT crc32_wd(uint32_t crc,const unsigned char *buf,uInt len, uInt chunk_sz)
{
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)const unsigned char *end, *curr;int chunk;curr buf;end buf len;while (curr end) {chunk end - curr;if (chunk chunk_sz)chunk chunk_sz;crc crc32(crc, curr, chunk);curr chunk;WATCHDOG_RESET();}
#elsecrc crc32(crc, buf, len);
#endifreturn crc;
}void crc32_wd_buf(const unsigned char *input, unsigned int ilen,unsigned char *output, unsigned int chunk_sz)
{uint32_t crc;crc crc32_wd(0, input, ilen, chunk_sz);crc htonl(crc);memcpy(output, crc, sizeof(crc));
}#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
# define ENV_HEADER_SIZE (sizeof(uint32_t) 1)
#else
# define ENV_HEADER_SIZE (sizeof(uint32_t))
#endiftypedef struct environment_s {uint32_t crc; /* CRC32 over data bytes */
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENTunsigned char flags; /* active/obsolete flags */
#endifunsigned char data[0]; /* Environment data */
} env_t;int main()
{printf(input env.img path:);char buf[1024] {};scanf(%s, buf);FILE* fp fopen(buf, rb);if (fp){fseek(fp, 0, SEEK_END);long flen ftell(fp);fseek(fp, 0, SEEK_SET);unsigned char* pFileData new(nothrow) unsigned char[flen];if (pFileData){fread(pFileData, 1, flen, fp);env_t* env (env_t*)pFileData;uint32_t data_size flen - ENV_HEADER_SIZE;uint32_t calcCrc crc32(0, env-data, data_size);printf(calc crc%08X\n, calcCrc);if (calcCrc ! env-crc) {printf(!bad CRC 0x%x\n, 0);}else{printf(crc ok\n);}delete[] pFileData;}fclose(fp);}return 0;
}
用这个工具重新测试计算crc然后修改env.img重新写入sd卡即可
