GRUB always enters a rescue shell.

[Aruna Hewapathirane]

On Mon, Jul 17, 2017 at 11:16 AM, Kamil Konieczny <
k.konieczny at partner.samsung.com> wrote:

> Hi,
>
> On 13.07.2017 10:39, Hao Lee wrote:
>
> > I encounter a problem when making a bootable disk image because GRUB
> > always enters a
> > rescue shell.
> >
> > I want to create a disk image and install GRUB 2 on it and then use
> > Bochs to run it. The steps are as follows.
> > [...]
>
> > Bochs BIOS - build: 02/16/17
> > ata0 master: Generic 1234 ATA-6 Hard-Disk (  49 MBytes)
> > Press F12 for boot menu.
> > Booting from Hard Disk...
> > .
> > error: no such device: c5b2c483-70c2-4212-840b-da5f965d0555.
> > error: unknown filesystem.
> > Entering rescue mode...
> > grub rescue>
> > [...]
>
> Looks like that blkid 'c5b2c483...' is not valid for your boot device,
> see command:
> blkid
>
> also:
> lsblk
>
> or search with google: grub2 without uuid
>
> or discover what uuid your partition will have (or assign it)
> or turn to some grub2 guru/forum for help
>
> or it may be problem with disk configuration, like loop1 is using
> linear mode, and bochs uses incompatible one (? i am not sure here)
> then bios geometry is mixing up sectors sequence
>
> or in step 3:
>
> > sudo losetup -o $((2048*512)) /dev/loop1 hd.img
>
> should'nt it be 63*512 ?
>

nope should be 2048 and this is why -->
https://superuser.com/questions/352572/why-does-the-partition-start-on-sector-2048-instead-of-63




> Regards,
> Kamil Konieczny
>
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