Win10 installing the Elementary OS dual system

Elementary OS is a branch of Ubuntu, the interface is a bit like apple, more beautiful.

Draw a blank partition from an existing disk and install elementary separately in this partition, which needs to be larger than the rest of the other partitions because the elementary OS only supports automatic partitioning, and it will select the partition with the largest remaining space.

Installation needs to make USB disk boot disk, the specific method see: Https://elementary.io/zh_CN/docs/installation#installation

On the first page of the installation screen remember to select the language, the default is English, choose the following options in Chinese to see clearly, because this installation once the error, your entire disk data can be destroyed, or careful. Of course English is good can skip.

A step in the middle is to select a disk size that can be dragged with the mouse. Depending on your needs, I set the 30 g. The rest of the extra space in Windows can be re-closed to other disks, to avoid wasting.

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Once installed, the system starts up with a more startup selection. My startup items are elementary OS, elementary OS Advanced options, and Windows 10,windows Xp,xp were installed on the computer many years ago, have been deleted, and the startup item remains.

What I want to do is to delete the XP option and move the WIN10 option to the first, as the default startup item, after all, the Linux system is just for playing. To do this, go to the/boot/grub directory and modify the Grub.cfg configuration file:

sudo chmod 744 grub.cfg # Default is a read-only file, so change the permissions first.

sudo vi grub.cfg

Locate the startup entry for Windows, cut and copy to all Ubuntu startup items before, such as:

# # # Begin/etc/grub.d/30_os-prober # #
Menuentry "Windows ten (loader) (ON/DEV/SDA1)"--class windows--class os {
Insmod Part_msdos
Insmod NTFS
Set root= ' (/DEV/SDA,MSDOS1) '
Search--no-floppy--fs-uuid--set=root A046A21446A1EAEC
Chainloader +1
}

Menuentry "Windows XP (loader) (ON/DEV/SDA8)"--class windows--class os {
Insmod Part_msdos
Insmod NTFS
Set root= ' (/DEV/SDA,MSDOS1) '
Search--no-floppy--fs-uuid--set=root A046A21446A1EAEC
Chainloader +1
}
# # # End/etc/grub.d/30_os-prober # #

Delete this section of Windows XP.

Restart the system, you will find that WIN10 has reached the first item, Windows XP has been deleted.

The time-out of the boot entry can also be changed, the Timeout keyword is found in the file just now, and the following value can be changed.

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How does Ubuntu forget the password?

Select Elementary OS Advanced option at startup, select Recovery mode, press E to enter edit mode, find ro recovery This ro (read-only) keyword, change to RW (read and write). This step can not be less, or go into the system is read-only, you can not do anything.

Press Ctrl+x to enter the system, select the key with the root keyword, enter the root user mode. You can reset the password at this time.

Ubuntu installation When the user name can not be changed, I changed the system after the input. It is possible to actually change, it is my problem of operation. I rarely go to get it, directly in the root mode of the/etc/passwd file in the user name changed back.

Win10 installing the Elementary OS dual system