利用U盘导入程序到嵌入系统

青旅半醒 2022-04-10 09:41 173阅读 0赞

利用U盘导入程序到系统

<1> : 将有U盘插入linux系统,利用命令挂在U

\#mount /dev/sda1 /mnt

怎么样知道是sda1,而不是sda2…

在挂载之前先输入命令查看:

\#cat /proc/partitions

例如

\[root@Root /\]\# cat /proc/partitions

major minor \#blocks name

31 0 512 mtdblock0

31 1 2048 mtdblock1

31 2 257280 mtdblock2

8 0 4101120 sda

8 1 4101088 sda1

<2> : 当输入挂载命令后,发现终端提示:

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* No such file or directory

<3> : 反复操作,并且另外新建文件夹

Mkdir /mnt/usb

重新挂载,仍然结果是一样的.

<4> : 将U盘拔出,重新插入,终端显示如下信息:

\[root@Root /\]\# usb 1-1: USB disconnect, address 3  
usb 1-1: new full speed USB device using s3c2410-ohci and address 4  
usb 1-1: New USB device found, idVendor=1516, idProduct=8628  
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3  
usb 1-1: Product: Sk6201  
usb 1-1: Manufacturer: SZHX  
usb 1-1: SerialNumber: 000000000000000002B71F96  
usb 1-1: configuration \#1 chosen from 1 choice  
scsi2 : SCSI emulation for USB Mass Storage devices  
scsi 2:0:0:0: Direct-Access SZHX Sk6201 1.00 PQ: 0 ANSI: 2  
sd 2:0:0:0: \[sda\] 986624 512-byte hardware sectors: (505 MB/481 MiB)  
sd 2:0:0:0: \[sda\] Write Protect is off  
sd 2:0:0:0: \[sda\] Assuming drive cache: write through  
sd 2:0:0:0: \[sda\] 986624 512-byte hardware sectors: (505 MB/481 MiB)  
sd 2:0:0:0: \[sda\] Write Protect is off  
sd 2:0:0:0: \[sda\] Assuming drive cache: write through  
sda: sda1  
sd 2:0:0:0: \[sda\] Attached SCSI removable disk

<5> : 重新输入挂载命令,带格式vfat,或者不带,都不能成功,嵌入系统带了格式选项往往反而不成功.

解决上面的问题,可以用如下命令解决:

使用如下的命令：

\[root@Root /\]\# mknod /dev/sda1 b 8 1

\[root@ Root /\]\# mount /dev/sda1 /tmp

\[root@ Root /\]\# cd /tmp

\[root@ Root /tmp\]\# ls

Usb To Rs232.rar

linux

recycle.\{645FF040-5081-101B-9F08-00AA002F954E\}

script

既可以看到U中的文件了.