Busybox initramfs again and again

Lets first check your file system for errors.

For Ubuntu 17.10 or older...

• boot to the GRUB menu
• choose Advanced Options
• choose Recovery mode
• choose Root access
• at the # prompt, type sudo fsck -f /
• repeat the fsck command if there were errors
• type reboot

For Ubuntu 18.04 or newer... (or if the above steps don't work for you)...

• boot to a Ubuntu Live DVD/USB in “Try Ubuntu” mode
• open a terminal window by pressing Ctrl+Alt+T
• type sudo fdisk -l
• identify the /dev/sdXX device name for your "Linux Filesystem"
• type sudo fsck -f /dev/sdXX, replacing sdXX with the number you found earlier
• repeat the fsck command if there were errors
• type reboot

first, run the command

blkid

then check the number of partitions

it will look like

/dev/numve2: UUID="kksgasjhgdjh36876" TYPE="ext4" PARTUUID="bdmdmd7-iuuyuy-89jlh" /dev/numve4: UUID="kksgasjhgdjh36876" TYPE="ext4" PARTUUID="bjjlo-iuuyuy-89jlh"

now just run the command for all partitions:

fsck /dev/numve2 -y
fsck /dev/numve4 -y

after done for all partition just run :

reboot

and choose ubuntu it will work!!