starting chroot system dbus daemon failed after OS Update

[EpiphanyMachine]

Issue

Updated ChromeOS and can't enter-chroot anymore

Version 43.0.2357.65 beta (64-bit)
Platform 6946.44.0 (Official Build) beta-channel samus
Firmware Google_Samus.6300.122.0

Error starting chroot system dbus daemon failed with code 126

Steps Taken:

• Removed crouton and redownloaded
• Tried to update -u which failed for error
• Tried to enter-chroot with failed for error, and also thinks the setup is not completed anymore

Output

chronos@localhost / $ rm ~/Downloads/crouton


chronos@localhost / $ sudo sh ~/Downloads/crouton -n hint -u
Downloading latest crouton installer...
######################################################################## 100.0%
/usr/local/chroots/hint already exists; updating it...
Enter encryption passphrase for hint: 
Preparing chroot environment...
Installing brightness into the chroot...
Installing croutonpowerd into the chroot...
Installing croutonversion into the chroot...
Installing host-dbus into the chroot...
Installing host-x11 into the chroot...
Installing pulseaudio-default.pa into the chroot...
Installing croutonclip into the chroot...
Installing croutonnotify into the chroot...
Installing croutonurlhandler into the chroot...
Installing startxiwi into the host...
Installing croutoncycle into the chroot...
Installing croutonfindnacl into the chroot...
Installing croutontriggerd into the chroot...
Installing croutonxinitrc-wrapper into the chroot...
Installing setres into the chroot...
Installing xinit into the chroot...
Installing xiwi into the chroot...
Installing xbindkeysrc.scm into the chroot...
Installing xiwi.conf into the chroot...
Installing xorg-dummy.conf into the chroot...
Installing xserverrc into the chroot...
Installing xserverrc-xiwi into the chroot...
Installing xserverrc-local.example into the chroot...
Installing startxfce4 into the host...
Installing crouton-noroot into the chroot...
Installing startxfce4 into the chroot...
Installing enter-chroot into the host...
Installing delete-chroot into the host...
Installing edit-chroot into the host...
Installing mount-chroot into the host...
Installing unmount-chroot into the host...
Installing crash_reporter_wrapper into the host...
chroot: failed to run command 'su': Input/output error
WARNING: starting chroot system dbus daemon failed with code 126
chroot: failed to run command 'su': Input/output error
Unmounting /mnt/stateful_partition/crouton/chroots/hint...


chronos@localhost / $ sudo enter-chroot -n hint
Enter encryption passphrase for hint: 
Entering /mnt/stateful_partition/crouton/chroots/hint...
A chroot setup script still exists inside the chroot.
The chroot may not be fully set up.
Would you like to finish the setup? [Y/n/d] Y
Preparing chroot environment...
chroot: failed to run command 'su': Input/output error
WARNING: starting chroot system dbus daemon failed with code 126
chroot: failed to run command 'su': Input/output error
The chroot setup script may be broken. Your chroot is not fully configured.
Removing the chroot setup script. You may want to update your chroot again.
chroot: failed to run command 'su': Input/output error
WARNING: starting chroot system dbus daemon failed with code 126
chroot: failed to run command 'su': Input/output error
Unmounting /mnt/stateful_partition/crouton/chroots/hint...


chronos@localhost / $ sudo enter-chroot -n hint croutonversion
Enter encryption passphrase for hint: 
Entering /mnt/stateful_partition/crouton/chroots/hint...
chroot: failed to run command 'su': Input/output error
WARNING: starting chroot system dbus daemon failed with code 126
chroot: failed to run command 'su': Input/output error
Unmounting /mnt/stateful_partition/crouton/chroots/hint...

[EpiphanyMachine]

Restoring from Backup works fine (to a new chroot, didn't try with the same name)

sudo sh -e ~/Downloads/crouton -r trusty -t touch,xiwi,xfce,extension -f ~/Downloads/hint-20150430-2048.tar -n hint2 -u