Test to see if emmc board is present?

General
#1

Test to see if emmc board is present? Just came across this issue, meaning I have an emmc 64GB board on my Nova, but have been using an microSD for boot. I cannot seem to find a way(?) to determine if the emmc board is installed?

As I recall…
/dev/mmcbl1 is microSD card?
/dev/mmcbl0 is should be the emmc board?

But if the emmc board has failed, or not initialized it will not show up right? Is there a better way to check? Taking the heatsink is a PITA… so was thinking maybe better way to ‘see’ it?

#2

LOL… just realized I was forgetting I can analyze ‘dmesg’ results… For example…

[   17.608164] mmcblk0: mmc0:0001 CUTB42 58.2 GiB
[   17.608359] mmcblk0boot0: mmc0:0001 CUTB42 partition 1 4.00 MiB
[   17.608556] mmcblk0boot1: mmc0:0001 CUTB42 partition 2 4.00 MiB
[   17.608886] mmcblk0rpmb: mmc0:0001 CUTB42 partition 3 16.0 MiB, chardev (237:0)
[   17.612353]  mmcblk0: p1 p2
[   17.624438] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
[   17.624932] mmc_host mmc2: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
[   17.637109] dwmmc_rockchip fe2c0000.mmc: Successfully tuned phase to 145
[   17.637134] mmc1: new ultra high speed SDR104 SDHC card at address 5048
[   17.637868] mmcblk1: mmc1:5048 SD32G 28.9 GiB
[   17.642148]  mmcblk1: p1
[   17.645993] dwmmc_rockchip fe2d0000.mmc: card claims to support voltages below defined range
[   17.665061] mmc_host mmc2: Bus speed (slot 0) = 50000000Hz (slot req 50000000Hz, actual 50000000HZ div = 0)
[   17.666202] mmc2: new high speed SDIO card at address 0001
[   18.880183] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data mode. Opts: (null)
[   20.015261]  mmcblk1: p1
[   20.034309]  mmcblk1: p1
[   20.650785] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data mode. Opts: (null)
[   22.760148] EXT4-fs (mmcblk1p1): re-mounted. Opts: (null)
[   23.212941] EXT4-fs (mmcblk1p1): resizing filesystem from 1857792 to 7568379 blocks
[   30.669027] EXT4-fs (mmcblk1p1): resized filesystem to 7568379

So…

# dmesg | grep mmcblk0
[   17.608164] mmcblk0: mmc0:0001 CUTB42 58.2 GiB
[   17.608359] mmcblk0boot0: mmc0:0001 CUTB42 partition 1 4.00 MiB
[   17.608556] mmcblk0boot1: mmc0:0001 CUTB42 partition 2 4.00 MiB
[   17.608886] mmcblk0rpmb: mmc0:0001 CUTB42 partition 3 16.0 MiB, chardev (237:0)
[   17.612353]  mmcblk0: p1 p2
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