HABUILD_SDK [flame] [k1gen@think hadk]$ cat device/google/coral/fstab.hardware
# Android fstab file.

#<src>                                                  <mnt_point>            <type>  <mnt_flags and options>                              <fs_mgr_flags>
system                                                  /system                ext4    ro,barrier=1                                         wait,slotselect,avb=vbmeta_system,logical,first_stage_mount
system_ext                                              /system_ext            ext4    ro,barrier=1                                         wait,slotselect,avb=vbmeta_system,logical,first_stage_mount
vendor                                                  /vendor                ext4    ro,barrier=1                                         wait,slotselect,avb=vbmeta,logical,first_stage_mount
product                                                 /product               ext4    ro,barrier=1                                         wait,slotselect,avb,logical,first_stage_mount
/dev/block/by-name/metadata                             /metadata              ext4    noatime,nosuid,nodev,discard,sync                    wait,formattable,first_stage_mount,check
/dev/block/bootdevice/by-name/misc                      /misc                  emmc    defaults                                             defaults
/dev/block/bootdevice/by-name/userdata                  /data                  f2fs    noatime,nosuid,nodev,discard,reserve_root=32768,resgid=1065,fsync_mode=strict       latemount,wait,check,quota,formattable,fileencryption=ice,reservedsize=128M,sysfs_path=/sys/devices/platform/soc/1d84000.ufshc,keydirectory=/metadata/vold/metadata_encryption,checkpoint=fs
/devices/platform/soc/a600000.ssusb/a600000.dwc3*       auto                   vfat    defaults                                             voldmanaged=usb:auto
/dev/block/zram0                                        none                   swap    defaults                                             zramsize=2147483648,max_comp_streams=8,zram_backingdev_size=512M

HABUILD_SDK [flame] [k1gen@think hadk]$ cat device/google/coral/fstab.postinstall
#
# Copyright (C) 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#<src>                    <mnt_point>  <type> <mnt_flags and options> <fs_mgr_flags>
system                    /postinstall ext4   ro,nosuid,nodev,noexec  slotselect_other,logical,avb_keys=/product/etc/security/avb/system_other.avbpubkey