[Solved] error unknown filesystem Entering rescue mode... grub rescue>

setalah habis ubah susunan partisi atau istall ulang windows mendadak jadi error grubnya

error unknown filesystem
Entering rescue mode. . .
grub rescue> 


gimana ya penyelesaiannya? ini
penyelesaiannya

Cek pengaturan root dan prefix

error unknown filesystem
Entering rescue mode. . .
grub rescue> set
cmdpath=(hd0)
prefix=(hd0,gpt6)/boot/grub
root=hd0,gpt6

Mencari partisi yang terinstall Ubuntu

upgrade gdal-bin libgdal1h

 [SOLVED] WARNING: The following packages cannot be authenticated!   libgdal1h gdal-bin

martinmbaihaqi@Ubuntu:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree      
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  gdal-bin libgdal1h
The following NEW packages will be installed:
  gdal-bin libgdal1h
0 upgraded, 2 newly installed, 0 to remove and 2 not upgraded.
33 not fully installed or removed.
Need to get 0 B/5.355 kB of archives.
After this operation, 14,7 MB of additional disk space will be used.

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