Unknown filesystem grub rescue> Error ubuntu

when computer shows Unknown filesystem grub rescue> on starting ubuntu do these things to recover

---. Boot your computer on a ubuntu live-CD or live-USB

---choose option "Try ubuntu without installation"

---Install Boot Repair

- open terminal then type

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

-press enter then type

sudo apt-get install -y boot-repair && boot-repair

----if you can't install Boot Repair from repository, dowload it from official

website of Boot Repair

---After Installing open it and click the "Recommended repair" button .

this will fix your system

---Reboot your system it will work fine

if your system is not fixed after this do the following(you have to install grub)

--- If your linux partition is in sda10

sudo mount /dev/sda10 /mnt sudo mount --bind /dev /mnt/dev sudo mount --bind /sys /mnt/sys sudo mount --bind /proc /mnt/proc

sudo chroot /mnt(this show #)

sudo update-grub

grub-install /dev/sda

exit

sudo umount /mnt/dev

sudo umount /mnt/sys

sudo umount /mnt/proc

sudo umount /mnt/

Comments

Android List View using Custom Adapter and SQLite

following is a simple applicaton to create ListView using Custom adapter.screenshot of the application is like this . ListView is not used in android Anymore . We use RecyclerView and CardView in Android RecyclerView Demo is available on the following link http://androidtuts4u.blogspot.in/2017/04/android-recyclerview-example.html RecyclerView with Cardview Example is available on the following link http://androidtuts4u.blogspot.in/2017/09/android-card-view-example.html The ListView below the submit button is populated using Custom Adapter.Data is stored and retrieved using SQLite databsase. you can download the source code of this project from google drive https://drive.google.com/folderview?id=0BySLpWhqmbbdUXE5aTNhazludjQ&usp=sharing click on the above link ->sign into your google account ->add this to your google drive -> open it in google drive and download it. To create a simple ...

ViewModel with Jetpack Compose

Compose uses remember API to store object in memory. Stored value is returned during recomposition . remember helps us retain data across recompostion , but when configuration changes happen all stored values are lost . One way to overcome this is to use rememberSaveable . rememberSaveable saves any value that can be saved in a Bundle , so it will survive configuration changes. But when we are using lot of data , for example a list we can cannot use a rememberSavble beacuse there is limit on amount of data that can be stored in Bundle . So we use ViweModel . ViewModel provide the ui state and access to the business logic located in other layers of the app. It also survives configuration changes. ViewModel handles events coming from the UI or other layers of the app and updates the state holder based on the events. We need to add the following dependency in our app level build.gradle to use ViewModel implementation "androidx.lifecycle:lifecycle-viewmodel-compose:2.4.1" F...

Simple Calculator in Android

You can view new updated simple calculator with ViemModel and LiveData in my new blog https://androidtuts4u.blogspot.com/2021/10/simple-calculator-with-viewmodel-and.html To create a calculator first we need to create the layout of the calculator. Layout is created using XML file given below <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <EditText android:id="@+id/result_id" android:layout_width="fill_parent" android:layout_height="120dp" /> <Button android:id="@+id/Btn7_id" android:layout_width="70dp" android:layout_height="60dp" android:layout_below="@id/result_id" ...

Android Tutorial

Search This Blog