Re: BIOS Can Not Find Disk
On Sun 03 Dec 2017 at 21:27:20 (-0800), David Christensen wrote:
> On 12/03/17 21:17, David Christensen wrote:
> >But, it was not a total loss -- I can now dissect the SSD.
>
> More info:
>
> # lsblk /dev/sda
> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> sda 8:0 0 14.9G 0 disk
> |-sda1 8:1 0 953M 0 part
> `-sda2 8:2 0 4.7G 0 part
>
> # parted /dev/sda u s p free
> Model: ATA SAMSUNG SSD UM41 (scsi)
> Disk /dev/sda: 31277232s
> Sector size (logical/physical): 512B/512B
> Partition Table: gpt
> Disk Flags:
>
> Number Start End Size File system Name Flags
> 34s 2047s 2014s Free Space
> 1 2048s 1953791s 1951744s fat32 ESP boot, esp
> 2 1953792s 11718655s 9764864s stretch lvm
> 11718656s 31277198s 19558543s Free Space
>
>
> Are there any other commands that readers might find interesting
> (before I wipe the SSD)?
I recently reformatted a disk thus:
puck: GPT-style, master
Part # filesys size code rôle
puck - 1007KiB partition tables and alignment space
puck01 - 3MiB EF02 bios-boot for Grub (bios_grub flag)
puck02 FAT32 496MiB EF00 EFI (boot flag)
puck03 ext2 500MiB 8300 /boot (unencrypted)
…
which gdisk shows as
Number Start (sector) End (sector) Size Code Name
1 2048 8191 3.0 MiB EF02 BIOS boot partition
2 8192 1023999 496.0 MiB EF00 EFI System
3 1024000 2047999 500.0 MiB 8300 Linux filesystem
…
Is the absence of a partition like puck01 on your disk a significant
factor in your failure to install grub?
ie where's grub going to place itself?
Cheers,
David.
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