[FAQ] TDA4VM: How to create Multiple rootfs partition of emmc ?

Please follow the below steps to create two rootfs partition.

# STEP 1 On host genrate the uid
uuidgen
# STEP 2 On device set the uid
setenv uuid_gpt_rootfs_2 <genrated_uid_key>
# STEP 3 Set partition topology
setenv partitions uuid_disk=\${uuid_gpt_disk}\;name=rootfs,start=6150MiB,size=30MiB,uuid=\${uuid_gpt_rootfs}\;name=rootfs_2,start=0,size=6144MiB,uuid=\${uuid_gpt_rootfs_2}
# STEP 4 save env
saveenv
# STEP 5 create partion table
gpt write mmc 0 ${partitions}
# STEP 6 Reboot the device
reboot
# STEP 7 Now you will be able to see two partion use command "lsblk" to confirm
# Now we will make fs type as ext4
mkfs.ext4 /dev/mmcblk0p1 //rootfs_1
mkfs.ext4 /dev/mmcblk0p2 //rootfs_2

# STEP 8 create a mount handle
mkdir /mnt/rootfs_1
mkdir /mnt/rootfs_2

# STEP 9 mount
mount dev/mmcblk0p1 /mnt/rootfs_1
mount dev/mmcblk0p2 /mnt/rootfs_2

Now You can copy the file between two partition