I have Dell Inspiron 5567 laptop (i-7, 8GB) with Windows-10 OS installed on it. I am trying to install ubuntu 16.04 as a dual boot OS on Windows10. I have disabled fast boot and secure boot options also. I am facing this error while installing Ubuntu 16.04:
grub-efi-amd64-signed failed to install into /target/. Without GRUB boot loader,
the installed system will not boot
The target partition is /dev/sda1.
I have created three partitions:
20GB-ext4- Root mounted
18.9GB-ext4- /home
4GB Swap area
Launchpad link for the log files: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1703167
Pastebin link for boot-repair: https://pastebin.com/raw/u4LSP0V4
Output of sudo fdisk -l:
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: F87D48DF-F3FF-429E-8F0B-558F81712A60
Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 1288191 262144 128M Microsoft reserved
/dev/sda3 1288192 1843265535 1841977344 878.3G Microsoft basic data
/dev/sda4 1927151616 1928073215 921600 450M Windows recovery environment
/dev/sda5 1928073216 1951281151 23207936 11.1G Windows recovery environment
/dev/sda6 1951281152 1953523711 2242560 1.1G Windows recovery environment
/dev/sda7 1843265536 1851078655 7813120 3.7G Linux swap
/dev/sda8 1851078656 1890140159 39061504 18.6G Linux filesystem
/dev/sda9 1890140160 1927151615 37011456 17.7G Linux filesystem
Partition table entries are not in disk order.
Output of sudo parted -l:
Model: ATA TOSHIBA MQ01ABD1 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 525MB 524MB fat32 EFI system partition boot, esp
2 525MB 660MB 134MB Microsoft reserved partition msftres
3 660MB 944GB 943GB ntfs Basic data partition msftdata
7 944GB 948GB 4000MB linux-swap(v1)
8 948GB 968GB 20.0GB ext4
9 968GB 987GB 18.9GB ext4
4 987GB 987GB 472MB ntfs hidden, diag
5 987GB 999GB 11.9GB ntfs hidden, diag
6 999GB 1000GB 1148MB ntfs hidden, diag
Model: SRT USB (scsi)
Disk /dev/sdb: 32.5GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 32.5GB 32.5GB primary fat32 boot, lba
Please guide me how to resolve this problem.
Best Answer
The EFI System Partition was corrupt. I rectified this error with the following steps:
On Windows, I used DISKPART to assign the EFI System partition a letter. Fired up DISKPART, and typed
LIST DISK
to find the disk, followed bySELECT DISK <N>
(where is the drive number). Followed the same steps to find the proper partition (i.e.LIST PARTITION
followed bySELECT PARTITION <N>
), and then simply typedASSIGN LETTER = X
to have Windows mount the partition to letter X.Then opened CMD with administrative access. Ran
CHKDSK X: /f /r
Then, I tried installing Ubuntu once again, and it installed successfully!