WhyCan Forum(哇酷开发者社区)

使用256m的spi-nand

mtd的分区：
mtd0: 00100000 00040000 "boot0"
mtd1: 00300000 00040000 "uboot"
mtd2: 00100000 00040000 "secure_storage"
mtd3: 0fb00000 00040000 "sys"

Volume ID:   0 (on ubi0)
Type:        static
Alignment:   1
Size:        66 LEBs (17031168 bytes, 16.2 MiB)
Data bytes:  16777216 bytes (16.0 MiB)
State:       OK
Name:        mbr
Character device major/minor: 244:1
-----------------------------------
Volume ID:   1 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        69 LEBs (17805312 bytes, 16.9 MiB)
State:       OK
Name:        boot-resource
Character device major/minor: 244:2
-----------------------------------
Volume ID:   2 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        5 LEBs (1290240 bytes, 1.2 MiB)
State:       OK
Name:        env
Character device major/minor: 244:3
-----------------------------------
Volume ID:   3 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        5 LEBs (1290240 bytes, 1.2 MiB)
State:       OK
Name:        env-redund
Character device major/minor: 244:4
-----------------------------------
Volume ID:   4 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        70 LEBs (18063360 bytes, 17.2 MiB)
State:       OK
Name:        boot
Character device major/minor: 244:5
-----------------------------------
Volume ID:   5 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        407 LEBs (105025536 bytes, 100.1 MiB)
State:       OK
Name:        rootfs
Character device major/minor: 244:6
-----------------------------------
Volume ID:   6 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        5 LEBs (1290240 bytes, 1.2 MiB)
State:       OK
Name:        dsp0
Character device major/minor: 244:7
-----------------------------------
Volume ID:   7 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        5 LEBs (1290240 bytes, 1.2 MiB)
State:       OK
Name:        private
Character device major/minor: 244:8
-----------------------------------
Volume ID:   8 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        328 LEBs (84639744 bytes, 80.7 MiB)
State:       OK
Name:        UDISK
Character device major/minor: 244:9

修改sys_partition.fex分区文件，ubi卷大小是改变了。

但是df命令查看 / 只有29m，不懂这个大小是在哪里修改的。

# df -h
Filesystem                Size      Used Available Use% Mounted on
ubi0_5                   29.9M     29.2M    672.0K  98% /
devtmpfs                 49.2M         0     49.2M   0% /dev
tmpfs                    54.4M         0     54.4M   0% /dev/shm
tmpfs                    54.4M     24.0K     54.4M   0% /tmp
tmpfs                    54.4M     24.0K     54.4M   0% /run

请教下各位大佬们ubi0_5这个size如何修改