No need to move media! How to directly boot and install a Linux system from the hard disk

When I was tossing about Linux booting tomorrow, I discovered a Linux installation method that does not require any Unicom media, that is, starting the installation system directly from the hard disk.

1. First download an easyBCD. Go to the "Add New Entry" option and select the "NeoGrub" entry, then select "Add". Add and click "Configure".

2. Add the following lines of text to the pop-up text file named "menu.lst":

title Install Ubuntu root (hd0,1) kernel (hd0,1)/vmlinuz boot=casper iso-scan/filename=/[LINUX]ubuntu-12.10-desktop-i386.iso ro quiet splash locale=zh_CN.UTF-8 initrd (hd0,1)/initrd.lz

Before this, put the .iso image of ubuntu you want to install on any disk (not just the system disk). Linux gets the current time, and then put the "initrd." in the "casper" folder in the .iso file. lz" and "vmlinuz" files to the system disk (usually the C drive).

The red and blue parts in the text are modified according to the different machines.

My system disk is the second primary partition (the first one is for Linux), so the red part says (hd0,1), which represents the second primary partition of the hard disk (starting from 0). If yours is the first primary partition, write (hd0,0).

The blue part is determined according to your .iso file name. My installation file is [LINUX]ubuntu-12.10-desktop-i386.iso

3. After setting, save and exit linux to check the disk space and restart.

You can also see that there is an additional NeoGrub boot item in the boot.How to install the linux system with a USB flash driveHow to install the linux system with a USB flash drive, click on it to enter Linux is installed.

Notice:

1. Remember that before installation, you need to press Ctrl+Alt+T to open the terminal and enter the code: sudoumount-l/isodevice. This command cancels the mounting of the drive where the CD is located, otherwise the partition interface cannot find the partition.

2. If you restart, you will find that you cannot enter Windows.

Open the terminal and enter the command

sudo gedit /etc/default/grub

Change GRUB_TIMEOUT="10"

Then enter sudoupdate-grub

The update command will manually find the windows7 startup items. And manually update the /boot/grub/grub.cfg file. This will allow you to enter Windows after restarting.

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Finally step into Window7, open EasyBCD and delete the menu.lst file that was changed during installation, and click Remove.

Then go to our disk and delete vmlinuz, initrd.lz and the system iso file.

With the help of EasyBCD, you can modify the startup item menu. Press the EditBootMenu button, and you can choose to set Windows 7 as the default boot option.

refer to:

Win7+Ubuntu11.10(EasyBCD hard disk installation)

How to restore ubuntu boot after reinstalling win7/Xp on dual systems

Freecode:

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