Partitions
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Partitions mounted on boot
From logs of a 5.05 PS4 testkit CUH-12xx when booting:
[SceSysCore mini] nmount /dev/da0x4.crypt to /system [SceSysCore mini] nmount /dev/da0x5.crypt to /system_ex [SceSysCore mini] nmount_ufs /dev/da0x9.crypt to /system_data [SceSysCore mini] nmount_ufs /dev/da0x14.crypt to /eap_user [SceSysCore mini] nmount /dev/da0x12.crypt to /update [SceSysCore mini] nmount /dev/da0x0.crypt to /preinst [SceSysCore mini] nmount /dev/da0x1.crypt to /preinst2 [SceSysCore] nmount /data to /user/data
HDD partitions
From logs of a 5.05 PS4 testkit CUH-12xx when suspending:
[SceShellCore][StorageStatsReport] HDD partition [WRITE] : da0x4 (system ): bytes: 0B, transfer: 0 da0x4b (system(b) ): bytes: 1.11GiB, transfer: 9068 da0x5 (system_ex ): bytes: 0B, transfer: 0 da0x5b (system_ex(b)): bytes: 1.04GiB, transfer: 8543 da0x6 (old swap ): bytes: 705.43MiB, transfer: 17749 da0x8 (app_tmp ): bytes: 35.26MiB, transfer: 880 da0x9 (system_data ): bytes: 41.48GiB, transfer: 1741368 da0x12 (update ): bytes: 6.83GiB, transfer: 58112 da0x13 (user ): bytes: 68.33GiB, transfer: 2180231 da0x14 (eap_user ): bytes: 6.79MiB, transfer: 1403 da0x6x0 (new swap ): bytes: 703.02MiB, transfer: 12979 da0x6x1 (kernel log ): bytes: 654.00KiB, transfer: 1264 da0x6x2 (user log ): bytes: 1.77MiB, transfer: 3506 es0.crypt (ext_hdd ): bytes: 50.37MiB, transfer: 1022
The sizes might be the writeable size.