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Date: Mon, 10 May 2021 20:29:06 +0000
From: Moritz Strohm <ncc1988@posteo.de>
To: ~alpine/users@lists.alpinelinux.org
Subject: Re: Cannot boot from hard drive on a Pentium1 system
Message-ID: <20210510202906.vt6yswflyz434w5v@posteo.de>
References: <20210509122748.pjrvxeggco77yzck@posteo.de>
 <20210509162830.bbueyf2kjmm6mgkq@posteo.de>
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> Check with fdisk that your boot partition is bootable and try
> (install syslinux if needed first):
>=20
> extlinux -i /mnt/boot
>
> dd if=3D/usr/share/syslinux/mbr.bin of=3D/dev/sda

The boot partition is marked as bootable according to fdisk.
I chrooted from the Alpine Linux CD to the Alpine Linux on the
hard drive and executed the two commands, but without success.
In the chroot environment, the first command was:

extlinux -i /boot

extlinux recognised that /dev/sda1 is the boot partition
(which should be correct) and reported no errors.

I also tried to install the alt-mbr.bin with dd, but the result
is the same. I checked that the MBR ends with the sequence
0x55 0xAA (using dd and xxd) before making attempts to reinstall
syslinux in it.

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