[Bug 2106499] Re: Installation fails with 'OSError: [Errno 16] Device or resource busy: '/dev/mmcblk1p3'' (target device contains the installer)

[Olivier Gayot]

I guess we could read the MMC_TYPE [1] variable and add it to the label
somehow. But that would be very much specific to MMCs.

IMO, we should start by removing the installation media from the list
(or graying it out).

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/mmc/core/bus.c?h=v6.15-rc2#n61

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Title:
  Installation fails with 'OSError: [Errno 16] Device or resource busy:
  '/dev/mmcblk1p3'' (target device contains the installer)

Status in subiquity package in Ubuntu:
  New

Bug description:
  I tried to install http://cdimage.ubuntu.com/ubuntu-server/daily-
  live/20250408/plucky-live-server-riscv64.iso on a StarFive VisionFive
  2 board with eMMC. Curtin failed with:

  File "/snap/subiquity/6584/lib/python3.12/site-packages/curtin/block/__init__.py", line 1120, in exclusive_open
              fd = os.open(path, flags)
                   ^^^^^^^^^^^^^^^^^^^^
          OSError: [Errno 16] Device or resource busy: '/dev/mmcblk1p3'

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