Either your hard disk or maybe your SATA controller is broken:
Jun 24 07:24:45 ubuntu kernel: [ 594.288050] ata4.00: exception Emask 0x10
SAct 0x10000 SErr 0x400000 action 0x6 frozen
Jun 24 07:24:45 ubuntu kernel: [ 594.288058] ata4.00: irq_stat 0x08000000,
interface fatal error
Jun 24 07:24:45 ubuntu kernel: [ 594.288063] ata4: SError: { Handshk }
Jun 24 07:24:45 ubuntu kernel: [ 594.288069] ata4.00: failed command: WRITE
FPDMA QUEUED
Jun 24 07:24:45 ubuntu kernel: [ 594.288078] ata4.00: cmd
61/8e:80:97:3b:03/08:00:00:00:00/40 tag 16 ncq dma 1121280 ou
Jun 24 07:24:45 ubuntu kernel: [ 594.288078] res
40/00:84:97:3b:03/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
** Changed in: grub-installer (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1700224
Title:
the grub bootloader can't be installed when my computer almost done
the installation
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