京东云一代有emmc为啥内置就显示13.81m

zhang2***

ssh进去  fdisk -l 是有显示emmc存储  

JDCOS-4.0.0.r6636固件 也低格过了 不管用



root@JDBox_Gen1:~# fdisk -l
Disk /dev/mtdblock0: 192 KiB, 196608 bytes, 384 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


Disk /dev/mtdblock1: 64 KiB, 65536 bytes, 128 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


Disk /dev/mtdblock2: 64 KiB, 65536 bytes, 128 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


Disk /dev/mtdblock3: 31.63 MiB, 33161216 bytes, 64768 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


Disk /dev/mtdblock4: 2 MiB, 2097152 bytes, 4096 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


Disk /dev/mtdblock5: 29.63 MiB, 31064064 bytes, 60672 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


Disk /dev/mtdblock6: 13.81 MiB, 14483456 bytes, 28288 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


Disk /dev/mmcblk0: 57.62 GiB, 61865984000 bytes, 120832000 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: 57E8EB09-D7BE-0743-A021-9FBD695BA2F5

Device             Start       End   Sectors  Size Type
/dev/mmcblk0p1      2048    206847    204800  100M Linux filesystem
/dev/mmcblk0p2    206848    411647    204800  100M Linux filesystem
/dev/mmcblk0p3    411648   2508799   2097152    1G Linux filesystem
/dev/mmcblk0p4   2508800 117686271 115177472 54.9G Linux filesystem
/dev/mmcblk0p5 117686272 118734847   1048576  512M Linux swap
/dev/mmcblk0p6 118734848 120831966   2097119 1024M Linux filesystem


Disk /dev/mmcblk0boot1: 4 MiB, 4194304 bytes, 8192 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


Disk /dev/mmcblk0boot0: 4 MiB, 4194304 bytes, 8192 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
root@JDBox_Gen1:~# mmc list
-ash: mmc: not found
root@JDBox_Gen1:~# ls /dev/mmc*
/dev/mmcblk0       /dev/mmcblk0boot1  /dev/mmcblk0p2     /dev/mmcblk0p4     /dev/mmcblk0p6
/dev/mmcblk0boot0  /dev/mmcblk0p1     /dev/mmcblk0p3     /dev/mmcblk0p5



但是/overlay 挂载的是 /dev/mtdblock6  只有 13.8M
root@JDBox_Gen1:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                16.0M     16.0M         0 100% /rom
tmpfs                   250.1M      4.9M    245.2M   2% /tmp
tmpfs                   250.1M    192.0K    249.9M   0% /tmp/root
tmpfs                   512.0K         0    512.0K   0% /dev
/dev/mtdblock6           13.8M    564.0K     13.3M   4% /overlay
overlayfs:/overlay       13.8M    564.0K     13.3M   4% /
/dev/mmcblk0p1           98.5M       512     98.5M   0% /mnt/mmcblk0p1
/dev/mmcblk0p3          975.9M     10.8M    938.9M   1% /opt

725***

挂载到overlayfs:/overlay就是挂载到系统里了吧，也就是安装ipk的空间，其他的挂mnt里了，建议把小分区全删了，建一个大分区

jsw***

/dev/mmcblk0p4分区54.9G，原厂系统用来缓存的吗？

ga***

你的系统并没有使用mmcblock（就是板载的emmc）而已。

如果需要用，
在它上面创立分区，
再mkfs.ext4格式化一下
再把 /overlay 复制和映射到这个分区，
（或者也可以把整个 / 复制和映射过去）。

这样它就可以作为几十个GB的内部存储空间了。

sl***

你的df -h里，没有mmcblk0p4。
有可能是没有格式化，或着没mount。