diff --git a/usr/lib/archboot/installer/blockdevices.sh b/usr/lib/archboot/installer/blockdevices.sh
index 2826f5749..0134b47ff 100644
--- a/usr/lib/archboot/installer/blockdevices.sh
+++ b/usr/lib/archboot/installer/blockdevices.sh
@@ -66,7 +66,7 @@ _blockdevices_partitions() {
         #  "echo ${part} | grep "[a-z]$(parted -s $(${_LSBLK} PKNAME ${part}) print 2>/dev/null | grep bios_grub | cut -d " " -f 2)$"
         #- iso9660 devices
         #  "${_LSBLK} FSTYPE -s ${part} | grep "iso9660"
-        if ! ${_LSBLK} FSTYPE "${part}" | grep -q "linux_raid_member" && ! ${_LSBLK} FSTYPE "${part}" | grep -q "LVM2_member" && ! ${_LSBLK} FSTYPE "${part}" | grep -q "crypto_LUKS" && ! ${_LSBLK} FSTYPE -s "${part}" | grep -q "iso9660" && ! sfdisk -l 2>/dev/null | grep "${part}" | grep -q "Extended$" && ! sfdisk -l 2>/dev/null | grep "${part}" | grep -q "(LBA)$" && ! echo "${part}" | grep -q "[a-z]$(parted -s "$(${_LSBLK} PKNAME "${part}" 2>/dev/null)" print 2>/dev/null | grep bios_grub | cut -d " " -f 2)$"; then
+        if ! ${_LSBLK} FSTYPE "${part}" | grep -q "linux_raid_member" && ! ${_LSBLK} FSTYPE "${part}" | grep -q "LVM2_member" && ! ${_LSBLK} FSTYPE "${part}" | grep -q "crypto_LUKS" && ! ${_LSBLK} FSTYPE -s "${part}" | grep -q "iso9660" && ! sfdisk -l 2>/dev/null | grep "${part}" | grep -q "Extended$" && ! sfdisk -l 2>/dev/null | grep "${part}" | grep -q "(LBA)$" && ! sfdisk -l 2>/dev/null | grep "${part}" | grep -q "BIOS boot$"; then
             echo "${part}"
             [[ "${1}" ]] && echo "${1}"
         fi