Trying to dual-boot Aspire E5-575G-31LP, but...

Hi!
I tried to dual-boot Windows 10 and Linux Mint 19 on my Aspire E5-575G-31LP using a program(I think it's name is wubi).
I rebooted the computer to complete the installation.The installation was good until the laptop rebooted again and it showed:
error: no such device: .....
error: unknown filesystem
Entering rescue mode. . .
grub rescue>

What sould I do?
Are there any solutions without needing of a DVD or USB?
Thanks,
Toni.

P.S:sorry for my english.
P.S.2:I found some videos in which the author said to write the 'ls' command and then another command.I wrote ls and appears only (hd0) and in the videos I saw there were more things.

Accepted answers

MaClane

To recover grub, perform the following procedures:

The first step is to have at your disposal a live DVD or Ubuntu live pen drive.

Boot normally, as if you were to format the computer with Ubuntu, however, start the system in live mode, the same way you do when you want to test the system before installing.
Once on the desktop in live mode look in the system menu terminal, in it we will give 3 commands to recover grub.
The first command is for you to identify on which partition you have Ubuntu installed.

sudo fdisk -l

The answer will look something like the image below, however, NTFS partitions should appear too:

https2bpblogspotcom-sbAUuB_6ipEVcEYPtiNxuIAAAAAAAAQ60ZV2Jrhle1gcs640Captura2Bde2Btela2Bde2B2015-08-042B16253A53253A01png

Notice the partition table that is shown in the bottom half of the image (above), on the right side it informs that the partition / dev / sda1 contains Linux, that is, in that partition the system is installed, this step is important because it can vary (probably goes) from computer to computer.

The second step is to mount the partition that you identified in the previous step, so run this command by modifying the partition that matches your computer's partition.

sudo mount -t ext4 / dev / sda1 / mnt

Where the text in red is part you should put according to the partition where Ubuntu is installed on your computer, in my case it was / dev / sda1 but could be / dev / sda2 (sda3, sda4 ..., etc.). )

In blue we have the file system, which is usually Ext4, in case you have installed Ubuntu with another file system modify this session, otherwise it will not work. If you "just" installed Ubuntu, the system will be Ext4.

Now comes the comado that will reinstall GRUB itself:

sudo grub-install --root-directory = / mnt / dev / sda

With this your GRUB will be back, restart your computer and run the tests.

All comments

MaClane

Good afternoon nusunttoni !

What procedure did you perform to install dual-boot?
Did you use the same Bios system (example: both, WIndows and Mint in UEFi)?
Are you knowledgeable in Linux distributions?
Can you work with commands in Terminal?
Is the Grub home screen displayed?

nusunttoni

MaClane said:

Good afternoon nusunttoni !

What procedure did you perform to install dual-boot?
Did you use the same Bios system (example: both, WIndows and Mint in UEFi)?
Are you knowledgeable in Linux distributions?
Can you work with commands in Terminal?
Is the Grub home screen displayed?

Thanks for your reply @MaClane!
1.I simply opened wubi and selected the partition and clicked install.I entered the BIOS and saw it's Legacy, not UEFI(I think the program changed automaticaly the settings).
2.I don't know to much about Linux distros.
3.I can write them if i see them.
4.All what I see is what I mentioned.

I don't think is Grub home screen.

MaClane

For a Linux system, few things are as bad as WUBI, an ill-done attempt to write Unix systems on Micosoft.

The most effective and correct way to do dual boot would be the following steps:

1- Remove all unnecessary files from the HDD;
2. Defragment Windows;
3- Use the Disk Manager to create a partition on which Linux is installed;
4- Download a distro of greater compatibility and ease for beginners, like Ubuntu;
5- Install in the same standard Bios mode that Windows is using (if Windows is Legacy, Linux should be the same, and vice versa);
6 - After installation in the partition created, Grub 2.0 would already automatically recognize both Windows and Linux.

In your case, either you can carry out the whole process again, from the more supportive fomra, or you can try to recover the Grub.

MaClane

To recover grub, perform the following procedures:

The first step is to have at your disposal a live DVD or Ubuntu live pen drive.

Boot normally, as if you were to format the computer with Ubuntu, however, start the system in live mode, the same way you do when you want to test the system before installing.
Once on the desktop in live mode look in the system menu terminal, in it we will give 3 commands to recover grub.
The first command is for you to identify on which partition you have Ubuntu installed.

sudo fdisk -l

The answer will look something like the image below, however, NTFS partitions should appear too:

Notice the partition table that is shown in the bottom half of the image (above), on the right side it informs that the partition / dev / sda1 contains Linux, that is, in that partition the system is installed, this step is important because it can vary (probably goes) from computer to computer.

The second step is to mount the partition that you identified in the previous step, so run this command by modifying the partition that matches your computer's partition.

sudo mount -t ext4 / dev / sda1 / mnt

Where the text in red is part you should put according to the partition where Ubuntu is installed on your computer, in my case it was / dev / sda1 but could be / dev / sda2 (sda3, sda4 ..., etc.). )

In blue we have the file system, which is usually Ext4, in case you have installed Ubuntu with another file system modify this session, otherwise it will not work. If you "just" installed Ubuntu, the system will be Ext4.

Now comes the comado that will reinstall GRUB itself:

sudo grub-install --root-directory = / mnt / dev / sda

With this your GRUB will be back, restart your computer and run the tests.

nusunttoni

MaClane said:

To recover grub, perform the following procedures:

The first step is to have at your disposal a live DVD or Ubuntu live pen drive.

Boot normally, as if you were to format the computer with Ubuntu, however, start the system in live mode, the same way you do when you want to test the system before installing.
Once on the desktop in live mode look in the system menu terminal, in it we will give 3 commands to recover grub.
The first command is for you to identify on which partition you have Ubuntu installed.

sudo fdisk -l

The answer will look something like the image below, however, NTFS partitions should appear too:

Notice the partition table that is shown in the bottom half of the image (above), on the right side it informs that the partition / dev / sda1 contains Linux, that is, in that partition the system is installed, this step is important because it can vary (probably goes) from computer to computer.

The second step is to mount the partition that you identified in the previous step, so run this command by modifying the partition that matches your computer's partition.

sudo mount -t ext4 / dev / sda1 / mnt

Where the text in red is part you should put according to the partition where Ubuntu is installed on your computer, in my case it was / dev / sda1 but could be / dev / sda2 (sda3, sda4 ..., etc.). )

In blue we have the file system, which is usually Ext4, in case you have installed Ubuntu with another file system modify this session, otherwise it will not work. If you "just" installed Ubuntu, the system will be Ext4.

Now comes the comado that will reinstall GRUB itself:

sudo grub-install --root-directory = / mnt / dev / sda

With this your GRUB will be back, restart your computer and run the tests.

Thanks again for your reply.
At the moment I am unable to test this method, as I don't have where to install Ubuntu on a dvd/stick.

If you or someone who see this post can help me I would appreciate.
Thanks.

MaClane

Because you performed a "Microsoft" installation, the correct and safe way to fix Grub is that way.
You need an ISO via CD / DVD or flash drive that contains the reconfiguration files to update the Grub.
It does not necessarily have to be an Ubuntu distro.
Help is offered.
Just perform the procedures.

nusunttoni

MaClane said:

To recover grub, perform the following procedures:

The first step is to have at your disposal a live DVD or Ubuntu live pen drive.

Boot normally, as if you were to format the computer with Ubuntu, however, start the system in live mode, the same way you do when you want to test the system before installing.
Once on the desktop in live mode look in the system menu terminal, in it we will give 3 commands to recover grub.
The first command is for you to identify on which partition you have Ubuntu installed.

sudo fdisk -l

The answer will look something like the image below, however, NTFS partitions should appear too:

Notice the partition table that is shown in the bottom half of the image (above), on the right side it informs that the partition / dev / sda1 contains Linux, that is, in that partition the system is installed, this step is important because it can vary (probably goes) from computer to computer.

The second step is to mount the partition that you identified in the previous step, so run this command by modifying the partition that matches your computer's partition.

sudo mount -t ext4 / dev / sda1 / mnt

Where the text in red is part you should put according to the partition where Ubuntu is installed on your computer, in my case it was / dev / sda1 but could be / dev / sda2 (sda3, sda4 ..., etc.). )

In blue we have the file system, which is usually Ext4, in case you have installed Ubuntu with another file system modify this session, otherwise it will not work. If you "just" installed Ubuntu, the system will be Ext4.

Now comes the comado that will reinstall GRUB itself:

sudo grub-install --root-directory = / mnt / dev / sda

With this your GRUB will be back, restart your computer and run the tests.

I tried this but it does not appear any OS installed.

What i have to do?Thanks!

nusunttoni

NEVERMIND, a Ubuntu install from USB resolved the problem.

MaClane

Ubuntu has greater compatibility with hardware.
Accept the answer and mark as resolved to help others in the forum!

09975669107

MaClane said:

To recover grub, perform the following procedures:

The first step is to have at your disposal a live DVD or Ubuntu live pen drive.

Boot normally, as if you were to format the computer with Ubuntu, however, start the system in live mode, the same way you do when you want to test the system before installing.
Once on the desktop in live mode look in the system menu terminal, in it we will give 3 commands to recover grub.
The first command is for you to identify on which partition you have Ubuntu installed.

sudo fdisk -l

The answer will look something like the image below, however, NTFS partitions should appear too:

Notice the partition table that is shown in the bottom half of the image (above), on the right side it informs that the partition / dev / sda1 contains Linux, that is, in that partition the system is installed, this step is important because it can vary (probably goes) from computer to computer.

The second step is to mount the partition that you identified in the previous step, so run this command by modifying the partition that matches your computer's partition.

sudo mount -t ext4 / dev / sda1 / mnt

Where the text in red is part you should put according to the partition where Ubuntu is installed on your computer, in my case it was / dev / sda1 but could be / dev / sda2 (sda3, sda4 ..., etc.). )

In blue we have the file system, which is usually Ext4, in case you have installed Ubuntu with another file system modify this session, otherwise it will not work. If you "just" installed Ubuntu, the system will be Ext4.

Now comes the comado that will reinstall GRUB itself:

sudo grub-install --root-directory = / mnt / dev / sda

With this your GRUB will be back, restart your computer and run the tests.

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