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+
+SD card size constraint conceptually wrong
+
+The patch discussed here:
+https://<email address hidden>/msg720833.html
+introduces an artificial size constraint for SD cards
+that has no relation to reality.
+
+I'm trying to use an _actual_ **physical** SD card,
+and qemu tells me its size is "invalid".
+
+Something here appears to be conceptually wrong.
+
+--------------------------------------------------
+# fdisk -l /dev/sdg
+Disk /dev/sdg: 14.84 GiB, 15931539456 bytes, 31116288 sectors
+Disk model: USB  SD Reader  
+Units: sectors of 1 * 512 = 512 bytes
+Sector size (logical/physical): 512 bytes / 512 bytes
+I/O size (minimum/optimal): 512 bytes / 512 bytes
+Disklabel type: dos
+Disk identifier: 0x7a0c8bb0
+
+Device     Boot  Start      End  Sectors  Size Id Type
+/dev/sdg1         2048   524287   522240  255M  c W95 FAT32 (LBA)
+/dev/sdg2       524288 31116287 30592000 14.6G 83 Linux
+# qemu-system-aarch64 -M raspi3 -m 1G -kernel vmlinuz-5.4.79-v8 -dtb bcm2837-rpi-3-b-plus.dtb -append console=ttyAMA0\ root=/dev/mmcblk0p2\ rw -nographic -serial mon:stdio -drive file=/dev/sdg,format=raw
+qemu-system-aarch64: Invalid SD card size: 14.8 GiB
+SD card size has to be a power of 2, e.g. 16 GiB.
+You can resize disk images with 'qemu-img resize <imagefile> <new-size>'
+(note that this will lose data if you make the image smaller than it currently is).
+--------------------------------------------------
+
+The same invocation with a dump of the actual image
+resized to match qemu's odd expectations works fine.
+
+
+This is on QEMU 5.2.0, as evidenced by the following:
+--------------------------------------------------
+# qemu-system-aarch64 -version
+QEMU emulator version 5.2.0
+Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
+--------------------------------------------------
+
+Is there a simple workaround that disables this rather
+arbitrary constraint?
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