how to wipe hdd

One: Eliminate the shellThere are three styles of ringtones: none, Visible,(1) To eliminate the shell alarm sound, is to press the TAB key is not the sound:Add a line to the/ETC/INPUTRC: (I tried it in RedHat9.0)Set Bell-style NoneSave and restart the system.II: Elimination of VI(1) Interim plansudo rmmod PCSPKRFor Debian/ubuntu users, just open your terminal and run the above command. For Centos/redhat/rhel/fedora Linux users, you need to log in as root and execute Rmmod PCSPKR(2) Plan once and

theoretically increase the disk read/write speed by 30%. STEP1: After clicking on the Boot menu, select the "Run" column in the menu. Type "regedit" in the entry box in the Run column and enter the Registry Editor. Enter "regedit" STEP2: After opening Registry Editor, enter the "HKEY_LOCAL_MACHINESYSTEMCURRENTCONTROLSETSERVICESMSAHCI" key value. Double-click the item named "Start" in the right window to pop up a dialog box that changes the default parameter from 3 to 0. Click OK and then res

HDD partitioning scheme when installing UbuntuHttp://www.cnblogs.com/shenliang123/p/3196743.htmlIf you are going to install only one Ubuntu operating system on your hard drive, it is recommended that you adopt a three-partition scheme: "/", "swap", and "/home"./: 10GB-15GB.Swap: Physical memory is less than or equal to 512MB, it is recommended to allocate the actual physical memory capacity of twice times the size of swap, physical memory is greater t

this point, Yasuteru This tutorial, reinstall the GRUB2 from the USB drive.A second problem was encountered after rebooting: Minimal bash ..... After rebooting or stuck in grub, this time shows the Minimal BASH like line editing is supported. for the first word, TAB lists possible command completions. anywhere else TAB lists possible device or file completions. fix: follow this tutorial.Note that the above two tutorials refer to the first aid system that is started with the live CD, which is th

500M SWQP/dev/sda3 20G//dev/sda5 12g/var/dev/sda6 265g/homeMount#mount/dev/sda3/mnt#mkdir/mnt/boot#mount/dev/sda1/mnt/boot#mkdir/mnt/var#mount/dev/sda5/mnt/var#mkdir/mnt/home#mount/dev/sda6/mnt/home5) Vi/etc/pacman.d/mirrorlistserver=http://mirrors.ustc.edu.cn/archlinux/$repo/os/$archOther sources can be used and must be forced to refresh after modification#pacman-syy6) Installation#pacstrap/mnt Base Base-devel7) Generate Fstab#genfstab-u-p/mnt >>/mnt/etc/fstab8) cut to new system#arch-chroot/m

function to make the brief explanation, thus we can understand, to the hard disk's very large part work, by the hard disk controller can complete. And for floppy disk, its controller is much simpler, we need to program to complete various functions, so the floppy disk driver becomes more complex. Here we only discuss the hard drive driver. 2. Implementation of HDD driver in Linux The driver that we're going to talk about in Drivers/ide/hd.c, in the f

Hard disk cloning, which is a disk clone, is used to copy all the data from one disk to another, and its purpose is embodied in the following areas: HDD Upgrade: Upgrade your old hard drive or small hard drive to a new large hard drive, and use disk cloning to upgrade your hard drive to avoid reloading the system and reinstalling the application. Migrate data: Quickly migrate all data from one disk to another disk. Making a backup disk: All data on

disk (loss of CPU performance time and read time (increase HDD IO addressed thread allocation), which is also the root cause of complaints about hard disk occupancy. The SuperFetch Super Pre-read service is also ineffective for game programs, for individual users and gamers, opening this service will only be intangible loss of CPU performance time, loss of disk IO addressing the threading performance. Therefore, we can not hesitate to close this serv

step to fix at this point-"Select Entry Mode" (Set capacity pattern). In this interface must choose the "(C) ylinders" (stigma) option, enter the input after entering the capacity of the interface. In this interface, the capacity is entered according to the cylinder surface. For the first partition (that is, C-disk), are starting from the 1th cylinder, but now we have to change the front of the "0" to "1", as for the end of the partition is not necessary to modify the number of cylinders, can b

　How to see mobile hdd old and new First look at the calculation to see how many bytes your hard drive shows on your computer, use it with 1024 to see if there is 30G; second, look at the hard disk's label and serial number, there are no traces of sanding; three is to copy a large file to try, listen to the hard disk when reading data when there is no noise. A good hard drive has no noise, and the old hard drive will squeak. Secondly, we can use the

There are two ways to mount a hard disk on a Linux system:1, MOUNT/DEV/SDB1 (hard disk location)/HOME/TEMP1 (Mount position)2, NTFS-3G/DEV/SDB1 (hard disk location)/HOME/TEMP1 (Mount position)If the hard disk location cannot be determined at this time, you can view the disk partition using the following command line:1, Cat/proc/partitions2, disk load time and other details: Ll/dev/disk/by-pathUse the following command to read the contents of the drive:Ll/home/temp1Linux Mount

Tags: start lin device file logical IDE Linux named logical partition COLA: Linux system hard disk naming is file-based, generally:/dev/hda2 and/dev/sdb3#/dev: is the directory where all device files are stored. #hd和sd: They are the first two letters of the partition and represent the type of device on which the partition resides. HD represents the IDE hard disk, and SD represents the SCSI hard disk. #如hda中的a that indicates on which device the partition is, a represents the first hard disk, b th

it to yours.Note 3: The third line of the file appears "Vmlinuz.efi", the installed Ubuntu is 64-bit operating system, here must be "vmlinuz.efi", cannot lack the extension.5. Restart the system to select the NeoSmart ISO entry (the name in the ESAYBCD default, you can change, of course, not necessary, installed can be deleted), enter, such as (I did not take pictures, is this interface, my is Win7 andISO entry for NeoSmart）：5.Installing ubuntu16.0.4 LTSNothing unexpected, will enter the follow

###############For large 2TB disks, the partitioning method is as follows:# PARTED/DEV/SDBGNU Parted 2.1Using/dev/sdbWelcome to GNU parted! Type ' help ' to view a list of commands.(parted) PrintModel:ata Hitachi HUA72302 (SCSI)disk/dev/sdb:2000gbSector size (logical/physical): 512b/512bPartition Table:msdosNumber Start End Size Type File system Flags(parted) mklable GPT(parted) Mkpart primary 0 2000000(parted) Printmodel:ata Hitachi HUA72302 (SCSI)disk/dev/sdb:2000gbSector size (logical/physic

1. Turn off the virtual machine # try to get the customer to shut downVmagent/vmsh Stop xxxxxxxxxVirsh List--all2. Enter the directory where the virtual machine files are locatedCd/images/xxxxxxxxx3. Increase disk capacityQemu-img Resize disk.img +10g# expansion of the virtual machine disk.img disk File 10G4. Start the virtual machine and log inVmagent/vmsh start xxxxxxxx5. View the current disk situation and unmount the disks that are expandingDf-thUmount/dev/vdb6. Check Inode, block, and size,

directly in/etc/fstab, because the sequential encoding of devices in the cloud may change during the shutdown or opening of the cloud server, for example/DEV/SDB5 may become/dev/ Sdb2. It is recommended to use UUID to configure automatic mounting of data disks.Description: The disk's UUID (universally unique identifier) is the unique identification string provided by the Linux system for the storage device.　　Blkid (see UUID for each partition)2. Edit/etc/fstab/by VI and add a line at the endUui

ioengine. The default value is Sync Sync blocking I/o,libaio is the native asynchronous I/O for Linux.There are usually two ways of synchronizing and asynchrony. The synchronized IO can only issue one IO request at a time, waiting for the kernel to complete before returning, so that the iodepth is always less than 1, but multiple threads concurrently can make iodepth larger. The asynchronous approach is to commit a batch of requests at once, waiting for a batch to complete, reducing the number

What if your MacBook Pro hard drive is broken? If your device is a non-Retina MacBook Pro, then you can try to replace the hard disk, the following small series to bring you the old MacBook Pro dismantle the hard drive and system installation of graphics tutorial, hope to help you! 1, first, open the computer back cover: 2, remove the previous hard drive: 3. Remove the screws from the hard drive: 4. Install on a new hard drive 5, and then installed to cover the cover is good, the tw

How to install NT6 HDD Installer Hard drive installation Windows 8/7/2008 R2 Extract the prepared system image ISO file into the root directory of a non-system partition. Attention must be the root directory!! Non-system partitioning is like your system disk is a C disk, then extract to other than C disk, decompression method can be directly right click. iso files are decompressed with WinRAR. Second, download and install NT6

1, first, we talk about the hard drive.We all know that hard disk is used to store files, of course, with the file system (file system management of the corresponding hardware resources).A hard disk consists of multiple disks, each with two sides, a head on each side, and multiple tracks on the disk.The hard disk is divided into several sectors, the current normal one sector is 512byte. The first sector stores the master boot record and the partition table information.650) this.width=650; "Src="