grandstream ata

, first have to deal with the image file, we first do not use the-graft-point option to process this image file try to see:#mkisofs-R-v-o/tmp/system.img/root/home/etc#mount-O loop/tmp/system.img/mnt As we can see from the above example, the data for three directories (/root,/home,/etc) are all placed in the top level of the image file.Record, especially because of the existence of/ROOT/ETC, the data of the/etc does not seem to be included, and there is a lost+found directory exists, we can use-g

After Windows 7 is installed, When you enable the AHCI function of the SATA hard disk in the BIOS, the system will fail to start. The system will recover to normal only after you change to the IDE (ATA) mode. If Windows is installed in IDE mode, you need to reinstall the system to change the hard disk to AHCI mode in BIOS. This allows many users to reload data.I. Introduction to AHCI AHCI (Serial ATA Advanc

nowadays, disk interfaces are mainly divided into two types: IDE (integrated drive electronics) and SCSI (small computer system interface ). They each have some differentiation or evolution, so the technical terms on disk interfaces are more and more complicated. Of course, the disk interface also has other technologies, such as optical fiber technology and familiar USB. The following describes the IDE technology. IDE is developed as a simple and cheap interface for PC. It places the hardware co

I. Category of disks Disks can be divided into ATA (IDE), SATA, SCSI, SAS, and FC disks by interface type. According to the disk chip composition, it is divided into SSD and HDD. Because the mechanical hard disk is still the mainstream configuration, we call SAS, FC and SATA both refer to the mechanical hard disk. The following is a brief introduction to Baidu Encyclopedia: ATA,The full name is AdvancedTech

transmission is very efficient, but due to physical reasons on the line, the transmission frequency cannot be too high, so the actual transmission speed is not proportional to the degree of parallelism, or even worse. (2) The serial interface refers to the serial transmission interface, which is also 0 ~ 9 10 digits. If one transmission line is used, it must be transmitted for 10 times and the Hong Kong virtual host can be used.Theoretically, the serial transmission efficiency is not high, but

1 ). Figure 1. Storage stack explored in this article Storage Architecture Attaching storage to the platform is the key to the overall Storage Architecture. The three common architectures cover the vast majority of models: ○ Direct-attached storage (DAS) ○ Storage area network (SAN) ○ Network-attached storage (NAS) Of course, Linux supports all three models and develops through changes that occur along with these models. Figure 2 illustrates these models, focusing on file systems and st

Efficiency source 7200.10 HDD read-only, ATA error handlingToday a 7200.10 data recovery, model number: ST380215A; The firmware version number is:The 3.AAC;SN number is: 9qz1hp9l. After the drive is connected to the terminal, the status displayed is "Busy". The information displayed under the instruction is: The processing of this situation, must be read-only error before the end of the hard disk detection, back to the T-level mode, can do

data. Near-end is the new storage area in recent years, its products are mainly serial ATA (Serial ATA, abbreviation is SATA), apply to the bulk storage of non-critical data, the purpose is to replace the data backup that used to use tape previously. The biggest advantage of Fibre Channel storage devices is the speed of transmission, but his price is very high, maintenance is relatively troublesome, and S

Nowadays, Sata hard disks are becoming more and more popular. The latest purchased or assembled computers are basically installed with a new generation of SATA hard disks. Because most of the initial BIOS settings are "Ide mode", Windows XP and Vista systems are installed, there is no "ahci mode" for running to maximize performance ". Is your system running in the "ahci mode "? How do I enable "ahci mode "? It is easy to figure out whether to "run in ahci mode": first, the motherboard BIOS is se

If the module is normal, but more bad, you can start from level 02 automatic calibration (self-test). Risk: ATA module will be lost, (K8k9k10 will also lose the app module) after running, to write back the original disk ATA firmware and app module. If the bad way is not much, you can start the calibration from Age26 or Age30, Age31, and not destroy the ATA Run

First, the way the file is opened　　File Open method: Open (Name[,mode][,buf][,encoding])Parameter explanation: Name file pathMode open modeBUF: Buffer buffering sizeEncoding: encoding format for filesHow to open the file:　　　Second, the file readRead (): Read the entire fileRead (size): reads a size byteReadLine ([size]): reads a rowReadLines ([size]): Reads buffering bytes, returns a list of each rowITER (): Using iterators to read filesGive a text file: E://me.txt, which reads as follows:

complete. The database is already open. Sql> Sql> Show Parameter Utl_file NAME TYPE ------------------------------------ ------------- VALUE ------------------------------ Utl_file_dir string D:/oracle/product/10.2.0/orada Ta/test/logs_utl_file Sql> Then create the data dictionary file: BEGIN Dbms_logmnr_d.build ( Dictionary_filename => ' Logminer_dict.ora ', Dictionary_location => ' d:/oracle/product/10.2.0/oradata/test/logs_utl_file '); End; / OK, you can see that the Logminer_dict.ora data

"":# # #http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#passwordtext "":Foo-bar1 # # My $Username = SOAP::D ata->name (' Username ' => ' adminuser ');My $Password = SOAP::D ata->name (' Password ' => ' Password ')->attr ({Type =>:' Http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText '}):My $UsernameToken = SOAP::D

Linux-getting started with installation, linux-getting startedLearning task: 1: after reading the process of installing linux on VMWare 2: Understand partition concepts Learning Experience: 1: linux system hard disk type: IDE hard disk, SCSI hard disk, SATA hard disk, IDE is an Integrated Drive Electronics. It is a hard Drive that integrates the controller and the disk body. IDE represents the transmission interface of the hard disk. We often call the IDE interface, also known as the

How to view the hard drive brand model and other details of CentOS First, use the smartctl -- all/dev/sda command to check the hard disk information. This command comes with CentOS. The result may be as follows: smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-358.el6.x86_64] (local build) Copyright (C) 2002-12 by Bruce Allen, http: //smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: WDC WD20EZRX-00DC0B0 Serial Number: WD-WMC301111333 LU WWN Device Id: 5 0014ee

the latest version 0309. After the restart, the test and speed remain unchanged.2: The left side of as_ssd_benchmark has a red pciide-bad,Just try to open ahci..3: I thought it was very simple. I didn't expect the official team to be really irresponsible.Http://support.lenovo.com/en_US/downloads/default.page? Find [Url =] storage [/url] Select Intel rapid storage technology driver Not very large, according to official instructions, upgrade driver, no response, prompt is the latest driver, no ne

drive" [Floppy Drive]) determines the sequence in which the system searches for boot devices during system startup. If you insert a boot device and restart the computer, this option is displayed in the system setup program menu. To boot from a USB storage device, select a USB device and move it to the first device in the list. Drive) "Diskette drive" (floppy disk drive) ("internal" [internal] by default) Enable and disable the floppy disk drive and set read-only permissions for the internal flo