Hi,
I did a fresh install of zimaos 1.5.1 from usb after wiping out emmc completely on zimaboard 832. Now total emmc storage is not showing correctly. Previously, with casaOS it showed as 27 GB something as total storage. But now total storage shown as 17.7 GB.
Before this fresh zimaOS installation I made sure that there are no unused partitions in emmc by using GParted and removing all existing partitions. However after zimaos installtions total sorage is not shown correctly. Any help to fix this issue would be really appreciated.
Thank You
Dear Icewhale team,
It has been 15 days since I posted this. I wold be grateful if you kindly acknowledge this issue and let me know whether you are working on fixing this issue. If you need further clarification on this matter I can provide.
Thanks
I believe what you are seeing is normal behaviour on the Zimaboard 832.
A fresh ZimaOS install does not expose the full eMMC as user storage because a large portion is reserved for the system. ZimaOS creates multiple hidden partitions including boot, recovery, two RAUC system slots, overlay, and metadata. Once these are carved out, the remaining user-visible space is typically around seventeen to eighteen gigabytes. CasaOS used to display the raw device size, which looked like twenty-seven gigs, but newer ZimaOS builds show only the usable portion. Nothing is missing and the installation is healthy.
If you want to confirm the layout, here are safe read-only commands:
1. Show all partitions with sizes and mountpoints
lsblk -o NAME,SIZE,FSTYPE,MOUNTPOINT
You should see several small system partitions and one larger partition around seventeen gigs.
2. Show the raw capacity reported by the kernel
cat /proc/partitions
This confirms the actual size of the eMMC regardless of how the UI presents it.
3. View the full partition table including the RAUC slots
fdisk -l /dev/mmcblk0
This shows exactly how the internal storage is split between system and user space.
I think nothing is wrong with your device. If you need help interpreting the output, feel free to share it.
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Thank you very much for the clarification. I was little paranoid about whether there is a fault with emmc. With your clarification as I understood, the baseline is nearly 12 GB is always reserved for fresh zima-os installation and the difference of display of memory between casaos (which originally came with zimaboard 832) and zima-os. Despite this concern my zima-os installation on zimaboard 832 works fine. Really appreciate your clarification. 
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You’re welcome. I think your understanding is correct. ZimaOS always reserves a fixed block of the eMMC for its system partitions, so the usable portion will look smaller than what CasaOS originally showed. CasaOS reported the raw device size, while ZimaOS reports only the part allocated for user data.
If everything is running well on your 832, I don’t believe there is any indication of an eMMC fault. The numbers you are seeing match a normal ZimaOS layout. If you ever want to double-check the partitioning, feel free to post the lsblk output and I can help interpret it.
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