[Q] How to switch internal and external sdcard S Duos 2

Hey guys I tried switching my internal and external sd card by editing vold.fstab

Here's how it looked before switching it.

## Vold 2.0 Generic fstab
## - San Mehat ()
##

#######################
## Regular device mount
##
## Format: dev_mount <label> <mount_point> <part> <sysfs_path1...>
## label - Label for the volume
## mount_point - Where the volume will be mounted
## part - Partition # (1 based), or 'auto' for first usable partition.
## <sysfs_path> - List of sysfs paths to source devices
######################
{a
supported_exfat = yes
}
#dev_mount sdcard /storage/sdcard auto /devices/platform/mmc_host/mmc2
dev_mount sdcard /storage/extSdCard auto /devices/platform/sdhci.0/mmc_host/mmc2


#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sda /storage/UsbDriveA auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdb /storage/UsbDriveB auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdc /storage/UsbDriveC auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdd /storage/UsbDriveD auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sde /storage/UsbDriveE auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdf /storage/UsbDriveF auto /devices/platform/dwc_otg/usb1




Here is after switching it.

## Vold 2.0 Generic fstab
## - San Mehat ()
##

#######################
## Regular device mount
##
## Format: dev_mount <label> <mount_point> <part> <sysfs_path1...>
## label - Label for the volume
## mount_point - Where the volume will be mounted
## part - Partition # (1 based), or 'auto' for first usable partition.
## <sysfs_path> - List of sysfs paths to source devices
######################
{a
supported_exfat = yes
}
#dev_mount sdcard /storage/extSdCard auto /devices/platform/mmc_host/mmc2
dev_mount sdcard /storage/sdcard auto /devices/platform/sdhci.0/mmc_host/mmc2


#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sda /storage/UsbDriveA auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdb /storage/UsbDriveB auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdc /storage/UsbDriveC auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdd /storage/UsbDriveD auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sde /storage/UsbDriveE auto /devices/platform/dwc_otg/usb1

#usb host device
{
media_type = usb
supported_exfat = yes
}
dev_mount sdf /storage/UsbDriveF auto /devices/platform/dwc_otg/usb1

When I restart my phone after switching it, it gets stuck on the samsung boot logo.

So what is the proper way of switching internal and external sdcard of S duos 2.

Thanks in advance

By the way I attached the original vold.fstab. and this is my first post on xda-developers forum.

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