~ # cd cache/recovery/
/cache/recovery # ls -l
__bionic_open_tzdata: couldn't find any tzdata when looking for localtime!
__bionic_open_tzdata: couldn't find any tzdata when looking for GMT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
-rw-rw-rw-    1 root     root      63786376 Jul 21 11:58 custom-fadff4f3d71eed42896bcca9db45a3f44b8c7ed8f6c58a15dfc0ff9b63d1b446.tar.xz
-rw-rw-rw-    1 root     root           490 Jul 21 11:55 custom-fadff4f3d71eed42896bcca9db45a3f44b8c7ed8f6c58a15dfc0ff9b63d1b446.tar.xz.asc
-rw-rw-rw-    1 root     root     108227112 Jul 21 11:53 device-9e1719b0b8ad1bb572fbdd49d3e2b7dc6fd382365c0e1b56f4f9d732b656df11.tar.xz
-rw-rw-rw-    1 root     root           490 Jul 21 11:46 device-9e1719b0b8ad1bb572fbdd49d3e2b7dc6fd382365c0e1b56f4f9d732b656df11.tar.xz.asc
-rw-rw-rw-    1 root     root           884 Jul 21 13:35 image-master.tar.xz
-rw-rw-rw-    1 root     root           836 Jul 21 13:35 image-master.tar.xz.asc
-rw-rw-rw-    1 root     root          1456 Jul 21 13:35 image-signing.tar.xz
-rw-rw-rw-    1 root     root           473 Jul 21 13:35 image-signing.tar.xz.asc
-rw-r--r--    1 root     root             0 Jul 21 13:35 last_install
-rw-r-----    1 root     root          7726 Jul 21 13:35 last_log_r
-rw-------    1 system   system        7726 Jul 21 13:35 log
-rw-rw-rw-    1 root     root           448 Jul 21 11:46 version-65.tar.xz
-rw-rw-rw-    1 root     root           490 Jul 21 11:46 version-65.tar.xz.asc
/cache/recovery # df -h
Filesystem                Size      Used Available Use% Mounted on
tmpfs                   946.3M    128.0K    946.1M   0% /dev
/dev/block/platform/mtk-msdc.0/by-name/cache
                        681.9M    164.9M    503.0M  25% /cache