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I'm trying to dual boot Arch Linux (on LVM) and Windows 10 (which I upgraded from Windows 7) on my BIOS/MBR system. I made a Linux LVM partition (it's name is /dev/sda4) with fdisk, but when I try to enter

# pvcreate /dev/sda4

I get the following message:

WARNING: dos signature detected on /dev/sda4 at offset 510. Wipe it? [y/n]

What are the consequences of entering y? Is it going to affect my Windows installation?

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  • Please add fdisk -l /dev/sda to your question Commented Jul 2, 2020 at 7:04
  • please post the output of sudo file -s /dev/sda4 - looks like you have a Windows partition on it. Commented Jul 2, 2020 at 7:10
  • if you've had a FAT file system on this area of the disk it could just be that pvcreate is picking up the signature and asking for conformation ahead of letting it be wiped eventually as the PV is used.
    – Pedro
    Commented Jul 2, 2020 at 8:27
  • My sincere apologies to everyone since I should have researched thoroughly before asking this question... After checking out unix.stackexchange.com/questions/502605/… and unix.stackexchange.com/questions/477991/… I realized that necessary to enter y in order to use pvcreate. Commented Jul 2, 2020 at 9:15

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