sergio-j-cazzolato@localhost:~$ cat /run/initramfs/resize-writable.log
e2fsck 1.42.13 (17-May-2015)
ext2fs_check_desc: Corrupt group descriptor: bad block for inode table
e2fsck: Group descriptors look bad... trying backup blocks...
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  +(98304--98337)
Fix? yes


writable: ***** FILE SYSTEM WAS MODIFIED *****
writable: 38/33360 files (5.3% non-contiguous), 93709/133136 blocks
sergio-j-cazzolato@localhost:~$ df -h|grep writable
/dev/mmcblk0p2  496M  345M  116M  75% /writable
sergio-j-cazzolato@localhost:~$ sudo sgdisk -p /dev/mmcblk0
Caution: invalid main GPT header, but valid backup; regenerating main header
from backup!

Caution! After loading partitions, the CRC doesn't check out!
Warning! Main partition table CRC mismatch! Loaded backup partition table
instead of main partition table!

Warning! One or more CRCs don't match. You should repair the disk!

Invalid partition data!