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五莲建设监理有限公司网站,优秀的定制网站建设服务商,太原小程序制作电话,网站建设需要哪些条件文章目录 GUID以及分区表MBR分区方案GPT 分区方案GPT分区表结构 GPT分区表LBALBA0#xff08;MBR兼容部分#xff09;LBA1LBA 2-33python生成GPT分区表gpt分区表实例 gpt分区表查看查看百问网T113-s3固件查看友善之臂nanopi-m1-plus官方固件查看荣品RV1126固件查看f1c200s固件… 文章目录 GUID以及分区表MBR分区方案GPT 分区方案GPT分区表结构 GPT分区表LBALBA0MBR兼容部分LBA1LBA 2-33python生成GPT分区表gpt分区表实例 gpt分区表查看查看百问网T113-s3固件查看友善之臂nanopi-m1-plus官方固件查看荣品RV1126固件查看f1c200s固件查看V3s的SD启动卡 原文http://www.pedestrian.com.cn/embedded/gpt/gpt_partition.html GPT分区表中有一个比较重要的概念是LBA, 翻译为中文可解释为逻辑区块地址。是描述存储设备上数据所在区块的通用机制一般用在硬盘或者SD卡这种记忆设备我们俗称扇区。 MBR主引导记录Master Boot RecordGPTGUID分区表GUID Partition TableGUID全局唯一标识符Globally Unique Identifier是一种由算法生成的二进制长度为16字节128位的数字标识符。通常表示成32个16进制数字09AF组成的字符串GUID 的格式为“xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx”。例如6F9619FF-8B86-D011-B42D-00C04FC964FF 即为有效的 GUID 值。 GUID以及分区表 MBR分区方案 传统的分区方案是将分区信息保存在磁盘的第一个扇区中的64个字节中每个分区项占16个字节。由于MBR扇区只有64个字节用于分区表所以只能记录4个分区信息这就是硬盘主分区数目 不能超过4个的原因后来为了支持更多的分区引入了扩展分区及逻辑分区的概念但每个分区项仍用16个字节存储。 MBR分区有一个比较大的缺陷是不能支持超过2T容量的磁盘因为这一方案用4个字节存储分区的总扇区数最大能表示2的32次方的扇区个数按每个扇区512字节计算每个分区最大不能超过2T。 计算机硬盘分区  MBRMain Boot Record 主引导记录区位于整个硬盘的0磁道0柱面1扇区。在512字节的主引导扇区中MBR只占用了其中的446个字节另外的64个字节交给了 DPTDisk Partition Table硬盘分区表最后两个字节“55AA”是分区的结束标志。这个整体构成了硬盘的主引导扇区。 主引导扇区由三个部分组成主引导记录MBRMaster Boot Record、硬盘分区表DPTDisk Partition Table、引导记录标志或者说结束标志BRIDBoot Record ID。 主引导扇区大小是512字节其中MBR占据446个字节DPT占据64字节BRID占据两个字节。
相对来说复杂一些。 嵌入式Linux SD启动卡 地址描述长度Byte0代码区440最大446440选用磁盘标志4444一般为空值: 0x00002446标准MBR分区规划第一个主分区入口16462标准MBR分区规划第二个主分区入口16478标准MBR分区规划第三个主分区入口16494标准MBR分区规划第四个主分区入口16510MBR有效标志2 全志V3s的SD卡固件
数据起始字节数长度描述08 4F 8A 2B4404标志00 004442空值下图红色框区域44616分区表下图绿色框区域46216分区表55 AA5102标志 16字节分区表描述 偏移长度字节意义00H1分区状态00–非活动分区80–活动分区其它数值没有意义01H1分区起始磁头号HEAD用到全部8位02H2分区起始扇区号SECTOR占据02H的位05该分区的起始磁柱号CYLINDER占据02H的位67和03H的全部8位04H1文件系统标志位05H1分区结束磁头号HEAD用到全部8位06H2分区结束扇区号SECTOR占据06H的位05该分区的结束磁柱号CYLINDER占据06H的位67和08H4分区起始相对扇区号0CH4分区总的扇区数 软件winhex中在ANSI ASCII区域下拉菜单中选择“分区表(模板)”可以获取该部分一些信息。 有两个分区信息。 不是绝对的是在百问网T113-s3的固件里面如下地址440~445就没有数据。 总结 ARM开发板的启动卡的MBR前0~440字节区域都是0计算机MBR的这块区域有大量的数据和代码。MBR的446510字节区域ARM开发板和计算机的都是一样的。四个16字节的分区描述区域DPT。 GPT 分区方案 GUID分区表(简称GPT)是源自EFI标准的一种新的磁盘分区表结构的标准。相较于mbr有以下优点 支持2TB 以上的磁盘。分区表自带备份在磁盘的收尾部分分别保存了一份相同的分区表其中一份被破坏后可通过另一份恢复。增加CRC校验机制。GPT使用一个16字节的全局唯一标识符(guid)来标识分区类型这使分区类型不容易冲突每个分区可以有一个名称。 GPT分区表结构 LBA逻辑区块地址
从上图可以看到的是GPT 的结构是有着 主备两部分的 上面有Primary GUID Partition主区下面有Backup GUID Partition备用区。跟现代的MBR一样GPT也使用LBALogical Block Address逻辑区块地址取代了早期的CHS寻址方式。传统MBR信息仅存储于LBA 0而GPT使用了34个LBAGPT头存储于LBA 1接下来才是分区表本身。GPT的每一个分区都可以独立存在没有所谓的扩展、逻辑分区的概念即所有分区都是主分区。 GPT分区表LBA 下图是百问网T113-s3双核ARM A7的固件
可以看出红框内就是一个典型的MBR数据块这个应该就是LBA0MBR兼容部分。绿框内的前八个字节是EFI PART代表这是一个LBA区域。 LBA0MBR兼容部分 在GPT分区表的最开头处由于兼容性考虑仍然存储了一份传统的MBR这个MBR叫做保护性 MBR(protective MBR)。在这个MBR中只有一个标识为0xEE的分区以此来表示这块磁盘使用GPT分区表。 LBA1 分区表头(LBA1)定义了磁盘的可用空间以及组成分区的大小和数量,分区表头结构的详细信息如下 起始字节偏移量内容08签名(“EFI PART”)84修订124分区表头的大小164分区表头(92字节)的CRC32校验,在计算时先把这个字段写作0处理204保留必须是0248当前LBA(这个分区表头的位置)328备份LBA(另一个分区表头的位置)408第一个可用于分区的LBA(主分区表的最后一个LBA1)488最后一个可用于分区的LBA(备份分区表的第一个LBA‐1)5616磁盘GUID(在类unix系统中也叫UUID)728分区表项的起始LBA(在主分区中是2)804分区表的数量(windows是128,没用这么多页先占用空间)844一个分区表项的大小884分区表项的CRC32校验(计算的是所有分区表项的校验和即128*128字节)92420保留剩余字节必须是0(420是针对512字节的LBA磁盘) LBA 2-33 LBA2‐33的位置存放的是分区表项分区表项的结构如下 起始字节偏移量内容016分区类型GUID1616分区GUID328起始LBA(小端格式)408末尾LBA488属性标签5272分区名 GUID为固定值以下列举常见几种 分区属性:低位4字节表示与主分区类型无关的属性高位4字节表示与主分区类型有关的属性 BIT解释0系统分区1EFI隐藏分区2传统的BIOS的可引导分区标志60只读62隐藏63不自动挂载也就是不自动分配盘符 python生成GPT分区表 使用python脚本生成gpt分区表 gen_gpt.py #!/usr/bin/env python2import binascii import uuid from struct import pack, unpackimport sysOS_TYPES {0x00: Empty,0xEE: GPT Protective,0xFF: UEFI System Partition }PARTITION_TYPE_GUIDS {024DEE41-33E7-11D3-9D69-0008C781F39F: Legacy MBR,C12A7328-F81F-11D2-BA4B-00A0C93EC93B: EFI System Partition,21686148-6449-6E6F-744E-656564454649: BIOS boot partition,0FC63DAF-8483-4772-8E79-3D69D8477DE4: Linux filesystem data,4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709: Root partition (x86-64),0657FD6D-A4AB-43C4-84E5-0933C84B4F4F: Swap partition,7C3457EF-0000-11AA-AA11-00306543ECAC: Apple APFS }def decode_guid(guid_as_bytes):return uuid.UUID(bytes_leguid_as_bytes)def nts_to_str(buf):s buf.decode(utf-16)return s.split(\0, 1)[0]def decode_gpt_partition_type_guid(guid):if isinstance(guid, uuid.UUID):guid str(guid)guid guid.upper()return PARTITION_TYPE_GUIDS.get(guid, ?)def decode_gpt_partition_entry_attribute(attribute_value):r []if (attribute_value 0x1):r.append(Requitted Partition)if (attribute_value 0x2):r.append(No Block Io Protocal)if (attribute_value 0x4):r.append(Legacy BIOS Bootable)return rdef decode_gpt_partition_entry(data):(partition_type_guid,unique_partition_guid,starting_lba,ending_lba,attributes,partition_name) unpack( 16s 16s Q Q Q 72s, data[0:128])return GPTPartitionEntry(partition_type_guid,unique_partition_guid,starting_lba,ending_lba,attributes,partition_name)def encode_gpt_partition_entry(gpt_partition_entry): data pack(16s 16s Q Q Q 72s,gpt_partition_entry.partition_type_guid_raw,gpt_partition_entry.unique_partition_guid_raw, gpt_partition_entry.starting_lba, gpt_partition_entry.ending_lba, gpt_partition_entry.attributes_raw,gpt_partition_entry.partition_name_raw)return datadef encode_gpt_partition_entry_array(gpt_partition_entries, size, count):data bytearray()for i in range(0, count):d encode_gpt_partition_entry(gpt_partition_entries[i])data.extend(d)if len(d) size:data.extend(bytearray(size - len(d)))return bytes(data)def calculate_partition_entry_array_crc32(data):return binascii.crc32(data) 0xffffffffclass GPTPartitionEntry():def init(self,partition_type_guid,unique_partition_guid,starting_lba,ending_lba,attributes,partition_name):self.partition_type_guid_raw partition_type_guidself.partition_type_guid decode_guid(partition_type_guid)self.partition_type decode_gpt_partition_type_guid(self.partition_type_guid)self.unique_partition_guid_raw unique_partition_guidself.unique_partition_guid decode_guid(unique_partition_guid)self.starting_lba starting_lbaself.ending_lba ending_lbaself.attributes_raw attributesself.attributes decode_gpt_partition_entry_attribute(attributes)self.partition_name_raw partition_nameself.partition_name nts_to_str(partition_name)def is_empty(self):return all(x 0 for x in self.partition_type_guid_raw)class GPTheader():def init(self,signature,revision,header_size,header_crc32,reserved,my_lba,alternate_lba,first_usable_lba,last_usable_lba,disk_guid,partition_entry_lba,number_of_partition_entries,size_of_partition_entry,partition_entry_array_crc32):self.signature signatureself.revision revisionself.header_size header_sizeself.header_crc32 header_crc32self.reserved reservedself.my_lba my_lbaself.alternate_lba alternate_lbaself.first_usable_lba first_usable_lbaself.last_usable_lba last_usable_lbaself.disk_guid disk_guidself.partition_entry_lba partition_entry_lbaself.number_of_partition_entries number_of_partition_entriesself.size_of_partition_entry size_of_partition_entryself.partition_of_entry_array_crc32 partition_entry_array_crc32 def is_valid(self):return self.signature EFI PART.encode(ascii)def calculate_header_crc32(self):header_crc32_input pack(8s 4s I I 4s Q Q Q Q 16s Q I I I,self.signature,self.revision,self.header_size,0,self.reserved,self.my_lba,self.alternate_lba,self.first_usable_lba,self.last_usable_lba,self.disk_guid,self.partition_entry_lba,self.number_of_partition_entries,self.size_of_partition_entry,self.partition_entry_array_crc32)return binascii.crc32(header_crc32_input) 0xffffffffdef encode_gpt_header(gpt_header):data pack( 8s 4s I I 4s Q Q Q Q 16s Q I I I,gpt_header.signature,gpt_header.revision,gpt_header.header_size,gpt_header.header_crc32,gpt_header.reserved,gpt_header.my_lba,gpt_header.alternate_lba,gpt_header.first_usable_lba,gpt_header.last_usable_lba,gpt_header.disk_guid,gpt_header.partition_entry_lba,gpt_header.number_of_partition_entries,gpt_header.size_of_partition_entry,gpt_header.partition_entry_array_crc32)return datadef decode_gpt_header(gpt_header):(signature,revision,header_size,header_crc32,reserved,my_lba,alternate_lba,first_usable_lba,last_usable_lba,disk_guid,partition_entry_lba,number_of_partition_entrires,size_of_partition_entry,partition_entry_array_crc32) unpack( 8s 4s I I 4s Q Q Q Q 16s Q I I I,data[0:92])gpt_header GPTheader(signature,revision, header_size, header_crc32,reserved,my_lba,alternate_lba,first_usable_lba,last_usable_lba,disk_guid,partition_entry_lba, number_of_partition_entries,size_of_partition_entry,partition_entry_array_crc32)return gpt_headerdef create_empty_gpt_entry():partition_type_guid b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00unique_partition_guid b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00starting_lba 0ending_lba 0attributes 0partition_name \x00\x00.encode(utf-16)[2:]print(partition_name)entry GPTPartitionEntry(partition_type_guid, unique_partition_guid,starting_lba,ending_lba,attributes,partition_name)return entrydef create_gpt_entry(start_lba, end_lba, name):partition_type_guid uuid.uuid4().bytesunique_partition_guid uuid.uuid4().bytesstarting_lba start_lbaending_lba end_lbaattributes 0partition_name name.decode(utf-8).encode(utf-16)[2:]entry GPTPartitionEntry(partition_type_guid,unique_partition_guid,starting_lba,ending_lba,attributes,partition_name)return entrydef complete_gpt_entries(entrylist):an create_empty_gpt_entry()for i in range(len(entrylist), 0x80, 1):entrylist.append(an)def create_gpt_header(current_lba):signature bEFI PARTrevision b\x00\x00\x01\x00header_size 0x5cheader_crc32 0reserved b\x00\x00\x00\x00my_lba current_lbaalternate_lba 0first_usable_lba 34last_usable_lba 0disk_guid uuid.uuid4().bytespartition_entry_lba 2number_of_partition_entries 0x80size_of_partition_entry 0x80partition_entry_array_crc32 0hdr GPTheader(signature, revision, header_size, header_crc32, reserved, my_lba,alternate_lba, first_usable_lba, last_usable_lba, disk_guid,partition_entry_lba, number_of_partition_entries, size_of_partition_entry,partition_entry_array_crc32)return hdrclass MBRfilling():def init(self, boot_indicator, start_head, start_sector, start_cylinder, partion_type, end_head, end_sector, end_cylinder, partition_reset, partition_sectors):self.boot_indicator boot_indicatorself.start_head start_headself.start_sector start_sectorself.start_cylinder start_cylinderself.partion_type partion_typeself.end_head end_headself.end_sector end_sectorself.end_cylinder end_cylinderself.partition_reset partition_resetself.partition_sectors partition_sectorsdef encode_mbr_pack(mbr_pack):data pack( B B B B B B B B I I,mbr_pack.boot_indicator, mbr_pack.start_head, mbr_pack.start_sector, mbr_pack.start_cylinder,mbr_pack.partion_type, mbr_pack.end_head, mbr_pack.end_sector, mbr_pack.end_cylinder, mbr_pack.partition_reset, mbr_pack.partition_sectors)return datadef mbr_partition_pack(sectors):boot_indicator 0x00start_head 0x00start_sector 0x02start_cylinder 0x00partion_type 0xeeend_head 0xffend_sector 0xffend_cylinder 0xffpartition_reset 0x0001partition_sectors sectorsmbr_pack MBRfilling(boot_indicator, start_head, start_sector, start_cylinder, partion_type,end_head, end_sector, end_cylinder, partition_reset, partition_sectors)data encode_mbr_pack(mbr_pack)return datadef create_mbr():mbr_data bytearray() mbr_data.extend(bytearray(0x1be))mbr_partition_data mbr_partition_pack(0x01dacbff)mbr_data.extend(mbr_partition_data)mbr_data.extend(bytearray(48))end_data pack( B B, 0x55, 0xaa)mbr_data.extend(end_data)return mbr_data def create(back_lba, alternate_lba, entrylist):complete_gpt_entries(entrylist)entriesdata encode_gpt_partition_entry_array(entrylist, 0x80, 0x80)hdr create_gpt_header(1)hdr.alternate_lba alternate_lba hdr.last_usable_lba alternate_lba - 33hdr.partition_entry_array_crc32 calculate_partition_entry_array_crc32(entriesdata)hdr.header_crc32 hdr.calculate_header_crc32()gptdata encode_gpt_header(hdr)mbrdata create_mbr()#gpt mainmaindata bytearray()#mbr#maindata.extend(bytearray(0x200))maindata.extend(mbrdata)#gpt headermaindata.extend(gptdata)maindata.extend(bytearray(0x200 - len(gptdata)))#gpt rablemaindata.extend(entriesdata)hdr.my_lba alternate_lba hdr.alternate_lba 1hdr.partition_entry_array_crc32 calculate_partition_entry_array_crc32(entriesdata)hdr.header_crc32 hdr.calculate_header_crc32()gptdata encode_gpt_header(hdr)#gpt backupbackdata bytearray()backdata.extend(entriesdata)#gpt headerbackdata.extend(gptdata)backdata.extend(bytearray(0x200 - len(gptdata)))#gpt tablereturn (bytes(maindata), bytes(backdata))def parse_conf(path, entrylist):maxsize 0partition_num 0with open(path, rb) as f:items f.readlines()for item in items:(ispart, name, fstype, starts, stops, crop) item.split(b:)if int(ispart) 1:partition_num partition_num 1if name.find(/) ! -1:name name[:name.find(b/)]entry create_gpt_entry(int(starts[:-1]), int(stops[:-1]), name)entrylist.append(entry)maxsize stops[:-1]return (int(maxsize)33, int(partition_num))if name main:if len(sys.argv) ! 4:print(Error: args number is not 3)print(Usage: sys.argv[0] gpt.conf main_img)sys.exit(1)path sys.argv[1]main_img sys.argv[2]back_img sys.argv[3]entrylist parse_conf(path, entrylist)print(alternate_lba)print(back_lba)(main_data, back_data) create(back_lba, alternate_lba, entrylist)create_mbr()with open(main_img, wb) as f:f.write(main_data)with open(back_img, wb) as f:f.write(back_data) gen_gpt.py 会解析分区表配置文件生成主分区表以及备份分区表 配置文件的示例如下 gpt配置文件 gpt_partition.conf 1:uboot/vfat:none:34s:262144s:1 1:system:ext4:262145s:31116254s:1可使用如下命令生成分区表 python gen_gpt.py gpt_partition.conf main_partition.img back_partition.imggpt分区表实例 主分区表 liefyuanubuntu:/work/gpt\( hexdump main_partition.img 0000000 0000 0000 0000 0000 0000 0000 0000 0000 * 00001c0 0002 ffee ffff 0001 0000 cbff 01da 0000 00001d0 0000 0000 0000 0000 0000 0000 0000 0000 * 00001f0 0000 0000 0000 0000 0000 0000 0000 aa55 0000200 4645 2049 4150 5452 0000 0001 005c 0000 0000210 9229 830f 0000 0000 0001 0000 0000 0000 0000220 cbff 01da 0000 0000 0022 0000 0000 0000 0000230 cbde 01da 0000 0000 8c98 f34d 36ef 5645 0000240 8799 e483 2578 f760 0002 0000 0000 0000 0000250 0080 0000 0080 0000 fb56 8758 0000 0000 0000260 0000 0000 0000 0000 0000 0000 0000 0000 * 0000400 a05e fbd4 a7f9 8e40 6cbd 9ecd cf49 9ba0 0000410 2db5 fb66 40aa 9543 8a86 be7d 45ae 366c 0000420 0022 0000 0000 0000 0000 0004 0000 0000 0000430 0000 0000 0000 0000 0075 0062 006f 006f 0000440 0074 0000 0000 0000 0000 0000 0000 0000 0000450 0000 0000 0000 0000 0000 0000 0000 0000 * 0000480 0ed5 4faf 8ed7 504b 3a8f 2ddc 0f60 5482 0000490 aa68 0ab5 dbda 6f4c b290 51f3 fe6a 23dd 00004a0 0001 0004 0000 0000 cbde 01da 0000 0000 00004b0 0000 0000 0000 0000 0073 0079 0073 0074 00004c0 0065 006d 0000 0000 0000 0000 0000 0000 00004d0 0000 0000 0000 0000 0000 0000 0000 0000 * 0004400备份分区表 liefyuanubuntu:~/work/gpt\) hexdump back_partition.img 0000000 a05e fbd4 a7f9 8e40 6cbd 9ecd cf49 9ba0 0000010 2db5 fb66 40aa 9543 8a86 be7d 45ae 366c 0000020 0022 0000 0000 0000 0000 0004 0000 0000 0000030 0000 0000 0000 0000 0075 0062 006f 006f 0000040 0074 0000 0000 0000 0000 0000 0000 0000 0000050 0000 0000 0000 0000 0000 0000 0000 0000 * 0000080 0ed5 4faf 8ed7 504b 3a8f 2ddc 0f60 5482 0000090 aa68 0ab5 dbda 6f4c b290 51f3 fe6a 23dd 00000a0 0001 0004 0000 0000 cbde 01da 0000 0000 00000b0 0000 0000 0000 0000 0073 0079 0073 0074 00000c0 0065 006d 0000 0000 0000 0000 0000 0000 00000d0 0000 0000 0000 0000 0000 0000 0000 0000 * 0004000 4645 2049 4150 5452 0000 0001 005c 0000 0004010 072f 2af5 0000 0000 cbff 01da 0000 0000 0004020 0001 0000 0000 0000 0022 0000 0000 0000 0004030 cbde 01da 0000 0000 8c98 f34d 36ef 5645 0004040 8799 e483 2578 f760 0002 0000 0000 0000 0004050 0080 0000 0080 0000 fb56 8758 0000 0000 0004060 0000 0000 0000 0000 0000 0000 0000 0000 * 0004200gpt分区表查看 一般fdisk适用于MBR分区而gdisk使用GPT分区gdisk命令常用格式如下 gdisk 设备文件名(绝对路径)示例如下 $ gdisk system.img GPT fdisk (gdisk) version 1.0.5 Warning! Disk size is smaller than the main header indicates! Loading secondary header from the last sector of the disk! You should use v to verify disk integrity, and perhaps options on the experts menu to repair the disk. Caution: invalid backup GPT header, but valid main header; regenerating backup header from main header. Warning! Error 25 reading partition table for CRC check! Warning! One or more CRCs dont match. You should repair the disk! Main header: OK Backup header: ERROR Main partition table: OK Backup partition table: ERROR Partition table scan: MBR: protective BSD: not present APM: not present GPT: damaged

Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk verification and recovery are STRONGLY recommended.

Command (? for help): print Disk system.img: 526336 sectors, 257.0 MiB Sector size (logical): 512 bytes Disk identifier (GUID): CB0A9716‐409B‐FD40‐8DD9‐5FB082604799 Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 62160862 Partitions will be aligned on 2048‐sector boundaries Total free space is 2014 sectors (1007.0 KiB) Number Start (sector) End (sector) Size Code Name 1 2048 2099199 1024.0 MiB FFFF system_A 2 2099200 4196351 1024.0 MiB FFFF system_B 3 4196352 62160862 27.6 GiB FFFF user Command (? for help):查看百问网T113-s3固件 主芯片是全志T113-s332位双核ARM A7 liefyuanubuntu:/work/img-test$ gdisk 100ask-t113-pro_sdcard.img GPT fdisk (gdisk) version 1.0.3Partition table scan:MBR: hybridBSD: not presentAPM: not presentGPT: presentFound valid GPT with hybrid MBR; using GPT.Command (? for help): print Disk 100ask-t113-pro_sdcard.img: 1154152 sectors, 563.6 MiB Sector size (logical): 512 bytes Disk identifier (GUID): 6BDDD82D-66B5-4034-95C6-FB3F1EF3C922 Partition table holds up to 128 entries Main partition table begins at sector 2048 and ends at sector 2079 First usable sector is 35392, last usable sector is 1154118 Partitions will be aligned on 64-sector boundaries Total free space is 7 sectors (3.5 KiB)Number Start (sector) End (sector) Size Code Name1 35392 39487 2.0 MiB 8300 boot-resource2 39488 39743 128.0 KiB 8300 env3 39744 39999 128.0 KiB 8300 env-redund4 40000 105535 32.0 MiB 8300 boot5 105536 629823 256.0 MiB 8300 rootfs6 629824 1154111 256.0 MiB 8300 shareCommand (? for help):
liefyuanubuntu:/work/img-test\( fdisk 100ask-t113-pro_sdcard.img Welcome to fdisk (util-linux 2.31.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.A hybrid GPT was detected. You have to sync the hybrid MBR manually (expert command M).Command (m for help): printDisk 100ask-t113-pro_sdcard.img: 563.6 MiB, 590925824 bytes, 1154152 sectors Units: sectors of 1 * 512 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 6BDDD82D-66B5-4034-95C6-FB3F1EF3C922Device Start End Sectors Size Type 100ask-t113-pro_sdcard.img1 35392 39487 4096 2M Linux filesystem 100ask-t113-pro_sdcard.img2 39488 39743 256 128K Linux filesystem 100ask-t113-pro_sdcard.img3 39744 39999 256 128K Linux filesystem 100ask-t113-pro_sdcard.img4 40000 105535 65536 32M Linux filesystem 100ask-t113-pro_sdcard.img5 105536 629823 524288 256M Linux filesystem 100ask-t113-pro_sdcard.img6 629824 1154111 524288 256M Linux filesystemCommand (m for help): 查看友善之臂nanopi-m1-plus官方固件 主芯片是全志H332位四核ARM A7 liefyuanubuntu:~/work/img-test\) gdisk nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img GPT fdisk (gdisk) version 1.0.3Partition table scan:MBR: MBR onlyBSD: not presentAPM: not presentGPT: not present*************************************************************** Found invalid GPT and valid MBR; converting MBR to GPT format in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by typing q if you dont want to convert your MBR partitions to GPT format! *************************************************************Warning! Secondary partition table overlaps the last partition by 1626041 blocks! You will need to delete this partition or resize it in another utility.Command (? for help): print Disk nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img: 958568 sectors, 468.1 MiB Sector size (logical): 512 bytes Disk identifier (GUID): D221F4BC-40C0-4E19-93ED-A5C1FE413A2A Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 958534 Partitions will be aligned on 2048-sector boundaries Total free space is 49118 sectors (24.0 MiB)Number Start (sector) End (sector) Size Code Name1 49152 131071 40.0 MiB 0700 Microsoft basic data2 131072 2516991 1.1 GiB 8300 Linux filesystem3 2516992 2584575 33.0 MiB 8300 Linux filesystemCommand (? for help): ^C liefyuanubuntu:/work/img-test$ fdisk nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img Welcome to fdisk (util-linux 2.31.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.Command (m for help): print Disk nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img: 577.9 MiB, 605933568 bytes, 1183464 sectors Units: sectors of 1 * 512 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x00000000Device Boot Start End Sectors Size Id Type nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img1 49152 131071 81920 40M b W95 FAT32 nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img2 131072 2516991 2385920 1.1G 83 Linux nanopi-m1-plus_sd_ubuntu-tft-xenial_4.14_armhf_20210425.img3 2516992 2584575 67584 33M 83 LinuxCommand (m for help): ^C查看荣品RV1126固件 主芯片瑞芯微RV112632位双核ARM A7 liefyuanubuntu:/work/img-test\( fdisk update-pro-rv1126-5-720-1280-20220505.img Welcome to fdisk (util-linux 2.31.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.Device does not contain a recognized partition table. Created a new DOS disklabel with disk identifier 0xb57e8937.Command (m for help): print Disk update-pro-rv1126-5-720-1280-20220505.img: 820.9 MiB, 860753920 bytes, 1681160 sectors Units: sectors of 1 * 512 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xb57e8937Command (m for help): ^C Do you really want to quit? liefyuanubuntu:~/work/img-test\) gdisk update-pro-rv1126-5-720-1280-20220505.img GPT fdisk (gdisk) version 1.0.3Warning: File size is not a multiple of 512 bytes! Misbehavior is likely! Warning: File size is not a multiple of 512 bytes! Misbehavior is likely! Warning: File size is not a multiple of 512 bytes! Misbehavior is likely! Partition table scan:MBR: not presentBSD: not presentAPM: not presentGPT: not presentCreating new GPT entries.Command (? for help): print Disk update-pro-rv1126-5-720-1280-20220505.img: 2136216 sectors, 1.0 GiB Sector size (logical): 512 bytes Disk identifier (GUID): 893418C0-ABD5-4E1A-98F0-6AF69C7C472A Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 2136182 Partitions will be aligned on 2048-sector boundaries Total free space is 2136149 sectors (1.0 GiB)Number Start (sector) End (sector) Size Code NameCommand (? for help): ^[[^H^H^H^H^C 查看f1c200s固件 主芯片全志F1c200s32位ARM11 liefyuanubuntu:/work/img-test$ fdisk sysimage-sdcard.img Welcome to fdisk (util-linux 2.31.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.Command (m for help): print Disk sysimage-sdcard.img: 109 MiB, 114294784 bytes, 223232 sectors Units: sectors of 1 * 512 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x00000000Device Boot Start End Sectors Size Id Type sysimage-sdcard.img1 16 2047 2032 1016K 0 Empty sysimage-sdcard.img2 * 2048 18431 16384 8M c W95 FAT32 (LBA) sysimage-sdcard.img3 18432 223231 204800 100M 83 LinuxCommand (m for help): ^C liefyuanubuntu:/work/img-test$ gdisk sysimage-sdcard.img GPT fdisk (gdisk) version 1.0.3Partition table scan:MBR: MBR onlyBSD: not presentAPM: not presentGPT: not present************************************************************* Found invalid GPT and valid MBR; converting MBR to GPT format in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by typing q if you dont want to convert your MBR partitions to GPT format! *************************************************************Warning! Secondary partition table overlaps the last partition by 33 blocks! You will need to delete this partition or resize it in another utility.Command (? for help): print Disk sysimage-sdcard.img: 223232 sectors, 109.0 MiB Sector size (logical): 512 bytes Disk identifier (GUID): 1CBF2B75-23D9-4529-AD2B-5A15A4833D26 Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 223198 Partitions will be aligned on 2048-sector boundaries Total free space is 2014 sectors (1007.0 KiB)Number Start (sector) End (sector) Size Code Name2 2048 18431 8.0 MiB 0700 Microsoft basic data3 18432 223231 100.0 MiB 8300 Linux filesystemCommand (? for help): ^C 目前手上的这些开发板的固件分区类型都不是很清晰啊 查看V3s的SD启动卡 分区
liefyuanubuntu:/media/liefyuan\( sudo fdisk /dev/sdbWelcome to fdisk (util-linux 2.27.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.Command (m for help): print Disk /dev/sdb: 29.1 GiB, 31243370496 bytes, 61022208 sectors Units: sectors of 1 * 512 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x28b6d4cfDevice Boot Start End Sectors Size Id Type /dev/sdb1 2048 34815 32768 16M 6 FAT16 /dev/sdb2 34816 61022207 60987392 29.1G 83 LinuxCommand (m for help): ^C liefyuanubuntu:/media/liefyuan\) sudo gdisk /dev/sdb GPT fdisk (gdisk) version 1.0.1Partition table scan:MBR: MBR onlyBSD: not presentAPM: not presentGPT: not present************************************************************* Found invalid GPT and valid MBR; converting MBR to GPT format in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by typing q if you dont want to convert your MBR partitions to GPT format! ***************************************************************Warning! Secondary partition table overlaps the last partition by 33 blocks! You will need to delete this partition or resize it in another utility.Command (? for help): print Disk /dev/sdb: 61022208 sectors, 29.1 GiB Logical sector size: 512 bytes Disk identifier (GUID): 3883B406-E1D8-4041-9BA1-1CA32D678B1A Partition table holds up to 128 entries First usable sector is 34, last usable sector is 61022174 Partitions will be aligned on 2048-sector boundaries Total free space is 2014 sectors (1007.0 KiB)Number Start (sector) End (sector) Size Code Name1 2048 34815 16.0 MiB 0700 Microsoft basic data2 34816 61022207 29.1 GiB 8300 Linux filesystem