A20 adb shell command for hard disk partitioning

A20 adb shell Command implementation hard disk partition 1' input busybox fdisk/dev/block/sda; 2' in Command (m for help): Then input m to view help; command (m for help ): mmCommand Actiona toggle a bootable flagb edit bsd encrypt toggle the dos encrypt flagd delete a previous list known partition typesn add a new partition create a new empty DOS partition tablep print the partition tableq quit without savchanging create a new empty Sun di Sklabelt change a partition's system idu change display/entry unitsv verify the partition tablew write table to disk and exitx extra functionality (experts only) 3' enter to view p, command (m for help): pp Disk/dev/block/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylindersUnits = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System 4' Select Delete d, C Ommand (m for help): ddNo partition is defined yet! 5 'create partition n, Command (m for help): nnCommand action e extended p primary partition (1-4) 6' select p, PPPartition number (1-4 ): 7' select the number of partitions. I select 1, Partition number (1-4): 11 First cylinder (1-60801, default 1 ): 8' press enter (start position of the primary partition). The default value is 1. The default value is good. First cylinder (1-60801, default 1 ): using default value 1 Last cylinder or + size or + sizeM or + sizeK (1-60801, default 60801): 9' This defines the partition size, + 499000 M means the size is + 499000 M. Of course, you can follow the p prompt Unit cylinder, and then specify the value of End. Let's look back at how it is calculated. We can use the + 499000M method to add it, which is more intuitive. My hard disk is 500 GB, so it is 499 GB. If you want to add a partition of about 10 Gb, enter + 10000 MB; last cylinder or + size or + sizeM or + sizeK (1-60801, default 60801): + 499000 M + 499000 M 10' use t to specify the partition type t; command (m for help): ttSelected partition 1Hex code (type L to list codes): 11' enter L here, the id of the partition type is Hex code (type L to list codes): LL 0 Empty 1b Hidden Win95 FAT32 9f BSD/OS 1 FAT12 1c Hidden W95 FAT32 (LBA) a0 Thinkpad hibernation 4 FAT16 <32 M 1e Hidden W95 FAT16 (LBA) a5 FreeBSD 5 Extended 3c Part. magic recovery a6 OpenBSD 6 FAT16 41 PPC PReP Boot a8 Darwin UFS 7 HPFS/NTFS 42 SFS a9 NetBSD a OS/2 Boot Manager 63 gnu hurd or SysV AB Darwin boot B Win95 FAT32 80 Old minix b7 BSDI fs c Win95 FAT32 (LBA) 81 Minix/old Linux b8 BSDI swap e Win95 FAT16 (LBA) 82 Linux swap be Solaris boot f Win95 Ext 'd (LBA) 83 Linux eb BeOS fs11 Hidden FAT1 2 84 OS/2 hidden C: drive ee EFI GPT12 Compaq diagnostics 85 Linux extended ef EFI (FAT-12/16/32) 14 Hidden FAT16 <32 M 86 NTFS volume set f0 Linux/PA-RISC boot16 Hidden FAT16 87 NTFS volume set f2 DOS secondary17 Hidden HPFS/NTFS 8e Linux LVM fd Linux raid autodetectHex code (type L list codes): 12' Select 83, Hex code (type L to list codes): 8383 14'. Let's take a look at p Command (m for help): pp Disk/dev/block/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylindersUnits = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/block/sda1 1 60668 487315678 + 83 Linux is indeed out! 15' create w Command (m for help): wwThe partition table has been altered! Calling ioctl () to re-read partition table 16' format and load the partition. Input busybox mkfs. ext2/dev/block/sda root @ android:/# busybox mkfs. ext2/dev/block/sdabusybox mkfs. ext2/dev/block/sdaFilesystem label = OS type: LinuxBlock size = 4096 (log = 2) Fragment size = 4096 (log = 2) 30531584 inodes, 122096646 blocks6104832 blocks (5%) reserved for the super userFirst data block = 0 Maximum filesystem blocks = 1258291203727 bloc K groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks: 32768,983 04, 163840,229 376, 294912,819 200, 884736,160 5632, 2654208,4096000, 7962624,112 39424, 20480000,238 87872, 71663616,786 75968, 102400000 ........... (You must note that if you have mounted the file before, Umount off -- busybox unmount/dev/block/sda; otherwise, busybox mkfs will fail. ext2/dev/block/sdamkfs. ext2: can't format mou Nted filesystem) 17' mount-t ext2/dev/block/sda/mnt/sata OK, buysybox df-h: root @ android: /# busybox df-hbusybox df-hFilesystem Size Used Available Use % Mounted ontmpfs 153.4 M 32.0 K 153.4 M 0%/devtmpfs 153.4 M 0 153.4 M 0%/mnt/asectmpfs 153.4 M 0 153.4 M 0%/mnt/obb/dev/block/system 504.4 M 257.9 M 246.5 M 51%/system/dev/block/data 504.4 M 57.7 M 446.7 M 11%/data/dev/block/ cache 252.1 M 4.3 M 24 7.8 M 2%/cache/dev/block/vold/93: 72 2.1G 48.0 K 2.1G 0%/mnt/sdcard/dev/block/vold/93: 72 2.1G 48.0 K 2.1G 0%/mnt/secure/asec/dev/block/sda 458.5G 62.5 M 435.2G 0%/mnt/sata come out, so be excited!