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最新推荐文章于 2023-08-01 20:41:47 发布

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最新推荐文章于 2023-08-01 20:41:47 发布 · 1.8k 阅读

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这段内容展示了对/dev/mmcblk1设备的分区管理，包括使用fdisk查看和操作分区表，以及挂载分区到/mnt/mtd目录下。设备有两个分区，分别为FAT32格式的/dev/mmcblk1p1和Linux类型的/dev/mmcblk1p2，其中包含了系统文件和启动相关数据。

/ # ls /dev/mmcblk1
/dev/mmcblk1
/ # random: nonblocking pool is initialized

/ # fdisk
BusyBox v1.29.0 (2021-01-25 22:58:31 CST) multi-call binary.

Usage: fdisk [-ul] [-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK

Change partition table

   -u       Start and End are in sectors (instead of cylinders)
   -l       Show partition table for each DISK, then exit
   -b 2048       (for certain MO disks) use 2048-byte sectors
   -C CYLINDERS   Set number of cylinders/heads/sectors
   -H HEADS   Typically 255
   -S SECTORS   Typically 63
/ # fdisk -l
Disk /dev/mmcblk1: 7456 MB, 7818182656 bytes, 15269888 sectors
238592 cylinders, 4 heads, 16 sectors/track
Units: cylinders of 64 * 512 = 32768 bytes

Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type
/dev/mmcblk1p1 320,0,1 959,3,16 20480 1044479 1024000 500M c Win95 FAT32 (LBA)
/dev/mmcblk1p2 768,0,1 1023,3,16 1228800 15269887 14041088 6856M 83 Linux
Disk /dev/mmcblk1boot1: 4 MB, 4194304 bytes, 8192 sectors
128 cylinders, 4 heads, 16 sectors/track
Units: cylinders of 64 * 512 = 32768 bytes

Disk /dev/mmcblk1boot1 doesn't contain a valid partition table
Disk /dev/mmcblk1boot0: 4 MB, 4194304 bytes, 8192 sectors
128 cylinders, 4 heads, 16 sectors/track
Units: cylinders of 64 * 512 = 32768 bytes

Disk /dev/mmcblk1boot0 doesn't contain a valid partition table
/ # fdisk -u
BusyBox v1.29.0 (2021-01-25 22:58:31 CST) multi-call binary.

Usage: fdisk [-ul] [-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK

Change partition table