diff --git a/pkgs/os-specific/linux/kernel/config-2.6.18.1-up b/pkgs/os-specific/linux/kernel/config-2.6.18.1-up
index 662471d58a19..f0f079abbe48 100644
--- a/pkgs/os-specific/linux/kernel/config-2.6.18.1-up
+++ b/pkgs/os-specific/linux/kernel/config-2.6.18.1-up
@@ -1088,34 +1088,34 @@ CONFIG_ATA_OVER_ETH=m
 #
 # ATA/ATAPI/MFM/RLL support
 #
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
+CONFIG_IDE=m
+CONFIG_BLK_DEV_IDE=m
 
 #
 # Please see Documentation/ide.txt for help/info on IDE drives
 #
 # CONFIG_BLK_DEV_IDE_SATA is not set
 # CONFIG_BLK_DEV_HD_IDE is not set
-CONFIG_BLK_DEV_IDEDISK=y
+CONFIG_BLK_DEV_IDEDISK=m
 CONFIG_IDEDISK_MULTI_MODE=y
 CONFIG_BLK_DEV_IDECS=m
-CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_IDECD=m
 CONFIG_BLK_DEV_IDETAPE=m
-CONFIG_BLK_DEV_IDEFLOPPY=y
+CONFIG_BLK_DEV_IDEFLOPPY=m
 CONFIG_BLK_DEV_IDESCSI=m
 # CONFIG_IDE_TASK_IOCTL is not set
 
 #
 # IDE chipset support/bugfixes
 #
-CONFIG_IDE_GENERIC=y
+CONFIG_IDE_GENERIC=m
 CONFIG_BLK_DEV_CMD640=y
 CONFIG_BLK_DEV_CMD640_ENHANCED=y
 CONFIG_BLK_DEV_IDEPNP=y
 CONFIG_BLK_DEV_IDEPCI=y
 CONFIG_IDEPCI_SHARE_IRQ=y
 CONFIG_BLK_DEV_OFFBOARD=y
-CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_GENERIC=m
 CONFIG_BLK_DEV_OPTI621=m
 CONFIG_BLK_DEV_RZ1000=m
 CONFIG_BLK_DEV_IDEDMA_PCI=y
@@ -3197,7 +3197,7 @@ CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT2_FS_XIP=y
 CONFIG_FS_XIP=y
-CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS=m
 CONFIG_EXT3_FS_XATTR=y
 CONFIG_EXT3_FS_POSIX_ACL=y
 CONFIG_EXT3_FS_SECURITY=y
@@ -3243,7 +3243,7 @@ CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_ZISOFS=y
 CONFIG_ZISOFS_FS=y
-CONFIG_UDF_FS=y
+CONFIG_UDF_FS=m
 CONFIG_UDF_NLS=y
 
 #