---
layout: post
status: publish
published: true
title: update-grub/os-prober not detecting Windows 7

wordpress_id: 3125
wordpress_url: https://www.martineve.com/?p=3125
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categories:
- Technology
- Linux
tags:
- Linux
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---
<p>Note to self/anybody else it might help: if you have disks with previous dmraid headers (potentially corrupt etc.), you need to remove the dmraid package before grub can find a Windows partition that resides on those disks. This is because the dmraid package is attempting to map the drives to /dev/mapper locations.</p>