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How to fix Su: Authentication Failure and Sudo: Permission denied Prompt in Ubuntu
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In this short video, you will learn how to fix the Su: Authentication Failure in Linux. With this error, you will also encounter the Permission denied message when trying to carry out any installation with sudo permission. Let’s get the issue fixed!
Commands:
mount -o remount,rw /
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo
shutdown -r now
What you will learn:
1. How to Boot into Ubuntu Recovery Console
2. How to go to grub loader page
3. How to enter Advanced options for Ubuntu
4. How to drop to the root shell prompt
5. How to Remount the file system to Read-Write
6. How to change ownership to sudo
7. How to Grant permission for sudo
Song: Jorm - Let's go skiing (Vlog No Copyright Music)
Music provided by Vlog No Copyright Music.
#computereverywhere #howtofix #authentication #failure #sudo #permission #denied #prompt #ubuntu
Commands:
mount -o remount,rw /
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo
shutdown -r now
What you will learn:
1. How to Boot into Ubuntu Recovery Console
2. How to go to grub loader page
3. How to enter Advanced options for Ubuntu
4. How to drop to the root shell prompt
5. How to Remount the file system to Read-Write
6. How to change ownership to sudo
7. How to Grant permission for sudo
Song: Jorm - Let's go skiing (Vlog No Copyright Music)
Music provided by Vlog No Copyright Music.
#computereverywhere #howtofix #authentication #failure #sudo #permission #denied #prompt #ubuntu
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