[Fire Android Development] DragonFire1024:
TheThe document is quite clear. It's not what root explorer says. It's what the document says. and it looks like it was placed in by mediatek at Bill time and if that's the case and it does have a second partition then it wasn't deleted by mediatek. It had to have been done post build. And if this document is correct then it is the only missing partition on the device. Now before I post what that document says may I enlighten you with a link? This file goes in hand with recovery-resource.dat, applypatch and recovery-from-boot.p.

This is just a brief except from an old thread. https://xdaforums.com/kindle-fire-hdx/help/qa-twrp-recovery-2-8-1-0-thor-t2991324/page7

below is the recovery.fstab document laying out the mount points

# <file system> <mount point> <type> <mount_flags> <fs_mgr_flags>
/dev/block/platform/mtk-msdc.0/by-name/boot0hdr0	/pl_hdr0	emmc	defaults	defaults
/dev/block/platform/mtk-msdc.0/by-name/boot0img0	/pl_img0	emmc	defaults	defaults
/dev/block/platform/mtk-msdc.0/by-name/boot0hdr1	/pl_hdr1	emmc	defaults	defaults
/dev/block/platform/mtk-msdc.0/by-name/boot0img1	/pl_img1	emmc	defaults	defaults
/dev/block/platform/mtk-msdc.0/by-name/lk /lk emmc defaults defaults
/dev/block/platform/mtk-msdc.0/by-name/lk2 /lk2 emmc defaults defaults
/dev/block/platform/mtk-msdc.0/by-name/boot /boot emmc defaults defaults
/dev/block/platform/mtk-msdc.0/by-name/system /system ext4 ro	wait
/dev/block/platform/mtk-msdc.0/by-name/userdata /data ext4 noatime,nosuid,nodev,noauto_da_alloc,discard wait,check
/dev/block/platform/mtk-msdc.0/by-name/cache /cache ext4 noatime,nosuid,nodev,noauto_da_alloc,discard wait,check
/dev/block/platform/mtk-msdc.0/by-name/MISC /misc emmc defaults defaults
/dev/block/platform/mtk-msdc.0/by-name/recovery /recovery emmc defaults defaults

/devices/soc/11240000.mmc* auto vfat defaults voldmanaged=sdcard1:auto,encryptable=userdata
/dev/block/mmcblk1p1 /sdcard vfat defaults defaults

/dev/block/platform/mtk-msdc.0/by-name/tee1 /tee1 emmc defaults defaults
/dev/block/platform/mtk-msdc.0/by-name/tee2 /tee2 emmc defaults defaults

Below is the listing of mount points in terminal:

u0_a28@suez:/ $ mount
rootfs / rootfs ro,seclabel 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
tmpfs /dev/logd tmpfs rw,context=u:object_r:logd_tmpfs:s0,relatime,size=512k,mode=770,uid=1036,gid=1036 0 0
adb /dev/usb-ffs/adb functionfs rw,relatime 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,seclabel,relatime 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
/dev/block/platform/mtk-msdc.0/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resuid=10010,data=ordered 0 0
/dev/block/loop2 /data/metrics ext4 rw,seclabel,relatime,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,data=ordered 0 0
/dev/block/loop0 /mnt/sqfs squashfs ro,context=u:object_r:squashfs_file:s0,relatime 0 0
/dev/block/loop1 /mnt/cd-rom iso9660 ro,relatime 0 0
/dev/fuse /mnt/shell/emulated fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
tmpfs /storage/emulated tmpfs rw,seclabel,nosuid,nodev,relatime,mode=751,gid=1028 0 0
/dev/block/vold/179:129 /mnt/media_rw/sdcard1 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/179:129 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/fuse /storage/sdcard1 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/fuse /storage/emulated/0 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/fuse /storage/emulated/legacy fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
u0_a28@suez:/ $

Lk2 is the only one missing when running mount points commands.