I tried to upgrade Ubuntu from 14.04 to 16.04, but must have removed some important kernels. I'm not sure about this, but now everytime I try to boot the system ,there's only memtest86+ running over and over. The situation very much like here: Updated Ubuntu 16.04 and Now stuck in memtest86+
I tried to follow this manual: https://ubuntuforums.org/showthread.php?t=1599293
I do this in a command line. I manage to follow some steps, but I can't locate the Ubuntu ISO file! Here's what I get:
grub> ls (hd,0) (hd0,msdos5) (hd0,msdos1) grub> ls (hd0)/ error: unknown filesystem grub> ls(hd0,msdos5)/ error: unknown filesystem grub> ls(hd0,msdos1)/ lost+found/ memtest86+.bin memtest86+_multiboot.bin memtes86t+.elf /grub
So there's no ubuntu file anywhere. Following, inside of /grub folder there are:
gfxblocklist.txt i386-pc/ locale/ fonts/ unicode.pf2 grubenv grub.cfg
Inside /i386-pc there are dozens of .mod files, just as described in the manual I linked to above. But I cannot find anything like this: ubuntu-14.04.1-desktop-i386.iso
And I had Ubuntu 14.04 installed. Without this, I can't move forward.
Could anyone help?