After experimenting on the virtual machine, cloning the virtual machine, and modifying the IP address, the following error occurred when restarting the network service:[Email protected] desktop]# service network restartshutting down loopback interface: [OK]bringi ng up Loopback interface: [OK]bringing up interface eth0:Error:No suitable device found: No device found for connection ' System eth0 '. [FAILED]
The computer often gets stuck and recovers after a minute or two. It also has the symptoms of power-off.
There are two types of system logs:
1.
Event ID: 51Event Type: WarningEvent Source: DiskDescription: an error was detected on device \ harddisk3 \ dr3 during a paging operation. (An error is detected on the device \ harddisk1 \ D during the call .)
2.
Event ID: 9Event Type: ErrorEvent Source: nvgtsD
Environment Description:In virtual machine VMS, centos6.6 's operating systemFault Description:Vi/etc/sysconfig/network-scripts/ifcfg-eth0An error occurred after modifying the IP address of the virtual machine and when restarting the NIC using service network restart: error:no suitable device found:no device found for connection "Sys TEM eth0 "Workaround:Based on this error, looked up on the internet, found
Question one: Why the device tree is needed.
In the current widely used Linux kernel 2.6.x version, for different platforms, different hardware, there is often a large number of different, poor portability of the board level Description code to achieve these different platforms and different hardware special adaptation
Demand. But too many platforms and different hardware have led to more and more such code, such as Arch/arm/plat-xxx and arch/arm/mach
USB Device cannot stop universal volume device What do I do?
Method One: Release clear off the clipboard
Caused "Unable to stop the universal volume device", generally there are reasons, such as the above mentioned reason is the most common, the solution can be released to clear off the Clipboard, you can casually copy anything on the hard drive to rele
Original blog member Wosiyin reflect, using WIN2008, right-click through my Computer to access Device Manager prompt: Because you run Device Manager on a remote computer, Device Manager runs in read-only mode. To uninstall a device or change device properties or drivers, you
Notes for compiling Linux network drivers
3.1 interrupt sharing
In Linux, several devices run to share the same interrupt. If you need to share, specify the sharing method when applying. Definition of system-provided request_irq () call:
Int request_irq (unsigned int IRQ,Void (* Handler) (int irq, void * dev_id, struct pt_regs * regs ),Unsigned long flags,Const char * devname,Void * dev_id );
If the sharing is interrupted, flags sets the sa_shirq attribute so that other devices can apply for t
,
. Suspend = Pci_device_suspend,
. Resume = Pci_device_resume,
. Dev_attrs = Pci_dev_attrs,
After registering, you will create a SYSFS directory/SYS/BUS/PCI that contains two directories: devices and drivers
All PCI drivers must define a PCI_DRIVER structure variable, which contains a device_driver structure that will be initialized when the PCI driver is registered.
How do I read the device number of a usb device? -- Linux general technology-Linux programming and kernel information. The following is a detailed description. I made a usb driver (based on the usb Kernel code of course) and wanted to use a usb device to test whether data can be transmitted. But the device Number of th
Reprinted please indicate the source:Http://blog.csdn.net/lihaoweiVLi haowei's csdn blog
Why did you encounter wait for device when you use fastboot to brush the machine?
I met. I have searched for countless methods on the Internet. I have told you that the driver is not correctly installed, ADB is not deleted, and I have tried none.
If the driver is not correctly installed, I have also tried it on Linux, and there is no need to install the d
Character device driversAn application is a function called open Read write in a C library. In order to operate the hardware, the driver module is introduced.Build a simple drive that has a few steps.1. Create File_operations2. Request a device number3. Registering character device drivers,4. Drive entry5. Drive exitCheck that the data is coming in a way:1. Query
At the time of CentOS 5, we were accustomed to eth0 such a network device naming, in CentOS 6, found that the network device became EM1 name. At that time, when we were installing, we added biosdevname=0 to the startup parameters and we could continue to use the name eth0.
By the time the CentOS 7, the original parameter biosdevname=0 did not work, the network device
In the control panel, devices and printers cannot be opened (including right-click and USB devices cannot be removed). 1. Many local Windows 7 and many local files have bluetooth, so many local files have such problems: after a bluetooth device is added, the "device and printer" of "Control Panel" may sometimes fail to be opened. This means that the device cannot
UserAgent and device, UserAgent Device
When a browser requests a webpage, A useragent (User Agent) is added before the url ).
PS: As a browser, you can do a lot of work on this useragent string. It can create many bugs or reduce many bugs. The only taste is yourself.
Let's talk about the distinction between Android phones and android pad ua.
Note: The ipad's pad ua is different from the android pad'
Recently, I have been drum up the lnux character device driver. I have collected various code and comments about the linux device driver on the internet, either for 2.4 or errors, and I cannot run it successfully, I really hope that you can carefully check the correctness of the code when posting a blog. In particular, you must list the code runtime environment and dependency conditions. Otherwise, it will
Obtain the serial device name. Obtain the hardware name in the Device Manager.
Introduction: In a serial communication program, if multiple serial ports are connected at the same time on the PC, it is difficult to know which serial port is used when the serial port is opened from the application program, in this case, you must use the Device Manager to view the s
Excerpt from: http://www.mamicode.com/info-detail-1165460.htmlDevice identificationWith regard to equipment identification, there have been many heroes in history, such as Udid, MAC address, Openudid, and so on, but they all continued to fall under the apple door. Apple currently offers 2 ways for apps to get the device ID: IDFA and IDFVIDFA: Full name advertisingIdentifier , official explanation is advertising logo, applicable to advertising promotio
The device drivers after linux2.6 are built based on the device model. Therefore, you need to understand the device model for writing the device drivers in Linux, such as USB devices and PCI devices.
The basic structure of the device model is kobject and kset:
Struct kobject
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