my bad it seems this was an typo in the disk config that bring up this error. Gpt is working fine with udev :)

Mounting /dev/sda4 to /target/boot
[ 349.653872] EXT3-fs: sda6: couldn't mount because of unsupported optional features (40).
mount: wrong fs type, bad option, bad superblock on /dev/sda4,
      missing codepage or helper program, or other error
      In some cases useful info is found in syslog - try
dme[ 349.680921] EXT3-fs: sda7: couldn't mount because of unsupported optional features (40).
sg | tail  or so


the error is that the system was not able to mkfs and mount the different disk.

regards,
Jean

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