I have a Dell Inspiron 5521 laptop running Ubuntu 15.10 and Windows 8.1 on dual boot. I was moving some files in the terminal when i did sudo mv /* to an external SD card. I immediately realized that I made a mistake and cancelled the operation and in panic, I powered my system off. Now the system will not boot, it shows a Checking Media [Fail] messages. I checked the BIOS settings and te boot options are empty.
I then loaded the boot-repair disk and it showed everything as normal but gave the following message when I used the "Fix common issues" option.
GPT detected. Please create a BIOS-boot partition (>1MB, unformatted filesystem, bios_grub flag) This can be performed using tools such as Gparted. Then try again.
The output of ls -lah on the SD card is: output of ls -lah on SD card:
ubuntu@ubuntu:/media/ubuntu/SETTINGS$ ls -lah
total 16K
drwxr-xr-x 4 root root 1.0K Jan 1 1970 .
drwxr-x---+ 5 root root 100 Jan 7 05:03 ..
drwxr-xr-x 4 root root 1.0K Jan 1 1970 cache
drwx------ 2 root root 12K Jan 1 1970 lost+found
-rw-r--r-- 1 root root 56 Jan 1 1970 noobs.conf
-rw-r--r-- 1 root root 78 Jan 1 1970 wpa_supplicant.conf
The output of ls- lah on the hard disk is:
ubuntu@ubuntu:/$ ls -lah
total 2.0K
drwxr-xr-x 1 root root 240 Jan 7 04:57 .
drwxr-xr-x 1 root root 240 Jan 7 04:57 ..
drwxr-xr-x 2 root root 3.4K Oct 21 16:07 bin
drwxr-xr-x 1 root root 60 Oct 21 16:07 boot
drwxr-xr-x 13 root root 2.0K Jan 1 1970 cdrom
drwxr-xr-x 20 root root 4.9K Jan 7 05:03 dev
drwxr-xr-x 1 root root 640 Jan 7 04:57 etc
drwxr-xr-x 1 root root 60 Jan 7 04:57 home
lrwxrwxrwx 1 root root 32 Oct 21 15:59 initrd.img -> boot/initrd.img-4.2.0-16-generic
drwxr-xr-x 1 root root 60 Oct 21 16:04 lib
drwxr-xr-x 2 root root 43 Oct 21 15:49 lib64
drwxr-xr-x 1 root root 80 Jan 7 05:00 media
drwxr-xr-x 2 root root 3 Oct 19 09:14 mnt
drwxr-xr-x 2 root root 3 Oct 21 15:49 opt
dr-xr-xr-x 229 root root 0 Jan 7 04:56 proc
drwxr-xr-x 21 root root 338 Oct 21 16:07 rofs
drwx------ 2 root root 46 Oct 21 16:06 root
drwxr-xr-x 28 root root 860 Jan 7 04:59 run
drwxr-xr-x 2 root root 4.7K Oct 21 16:08 sbin
drwxr-xr-x 2 root root 3 Oct 21 15:49 srv
dr-xr-xr-x 13 root root 0 Jan 7 04:57 sys
drwxrwxrwt 10 root root 260 Jan 7 05:05 tmp
drwxr-xr-x 1 root root 100 Oct 21 15:58 usr
drwxr-xr-x 1 root root 160 Oct 21 16:07 var
lrwxrwxrwx 1 root root 29 Oct 21 15:59 vmlinuz -> boot/vmlinuz-4.2.0-16-generic
Please help. This has been driving me crazy.
Edit: I tried Reinstalling Ubuntu from the live disk, it was going ok unity I encountered the error: The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot. I am not sure why this error would occur.
