我用了2个版本的samba工具，使用完之后，忘记切换回另一个samba下载“环境变量”出现现象是：系统启动无法挂在ubi文件系统！！！
Creating 7 MTD partitions on "atmel_nand":
0x000000000000-0x000000040000 : "bootstrap"
0x000000040000-0x000000100000 : "uboot"
0x000000100000-0x000000140000 : "env_redundant"
0x000000140000-0x000000180000 : "env"
0x000000180000-0x000000200000 : "dtb"
0x000000200000-0x000000800000 : "kernel"
0x000000800000-0x000040000000 : "rootfs"
at91-sama5d2_adc fc030000.adc: setting up trigger as external_rising
at91-sama5d2_adc fc030000.adc: version: 800
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20170425 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20170425)
can: broadcast manager protocol (rev 20170425 t)
can: netlink gateway (rev 20170425) max_hops=1
at91_i2c f8028000.i2c: can‘t get DMA channel, continue without DMA support
at91_i2c f8028000.i2c: Using FIFO (16 data)
at24 0-0050: 2048 byte 24c16 EEPROM, writable, 128 bytes/write
random: fast init done
tcn75a 0-004f: tcn75a_probe ok
at91_i2c f8028000.i2c: AT91 i2c bus driver (hw version: 0x704).
ubi0: default fastmap pool size: 200
ubi0: default fastmap WL pool size: 100
ubi0: attaching mtd6
ubi0 error: 0xc0458864: bad image sequence number 2069499586 in PEB 2016, expected 1696555559
Erase counter header dump:
magic 0x55424923
version 1
ec 2
vid_hdr_offset 4096
data_offset 8192
image_seq 2069499586
hdr_crc 0x454f1fea
erase counter header hexdump:
ubi0 error: 0xc044c058: failed to attach mtd6, error -22
UBI error: cannot attach mtd6
at91_rtc f80480b0.rtc: setting system clock to 2012-01-01 00:00:10 UTC (1325376010)
ALSA device list:
No soundcards found.
atmel_usart_serial atmel_usart_serial.1.auto: using dma0chan8 for rx DMA transfers
atmel_usart_serial atmel_usart_serial.1.auto: using dma0chan9 for tx DMA transfers
VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0): error -19
Please append a correct "root=" boot option; here are the available partitions:
0100 8192 ram0
(driver?)
0101 8192 ram1
(driver?)
0102 8192 ram2
(driver?)
0103 8192 ram3
(driver?)
1f00 256 mtdblock0
(driver?)
1f01 768 mtdblock1
(driver?)
1f02 256 mtdblock2
(driver?)
1f03 256 mtdblock3
(driver?)
1f04 512 mtdblock4
(driver?)
1f05 6144 mtdblock5
(driver?)
1f06 1040384 mtdblock6
(driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper Not tainted 4.14.88 #4
Hardware name: Atmel SAMA5
Function entered at [<c010e144>] from [<c010b2cc>]
Function entered at [<c010b2cc>] from [<c0117bd8>]
Function entered at [<c0117bd8>] from [<c090118c>]
Function entered at [<c090118c>] from [<c0901508>]
Function entered at [<c0901508>] from [<c0900da0>]
Function entered at [<c0900da0>] from [<c06f1248>]
Function entered at [<c06f1248>] from [<c0107e28>]
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
random: crng init done
原文：https://www.cnblogs.com/aiziyoudexinxin/p/samba.html