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authorSimon Glass <sjg@chromium.org>2023-09-01 12:08:23 -0600
committerBin Meng <bmeng@tinylab.org>2023-09-22 06:03:46 +0800
commit9804e572cf1ade7a0aae000740e6159a1e5394fd (patch)
tree65248720f3da8d1ba7128dc5ee88815a2075a967 /doc/board
parentb95bc64b06a1ec1786d9c82d3041c63ca1b4e147 (diff)
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x86: doc: Document the -cdrom issues I ran into
Add a note about using -cdrom with QEMU. Suggested-by: Bin Meng <bmeng@tinylab.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng@tinylab.org>
Diffstat (limited to 'doc/board')
-rw-r--r--doc/board/emulation/qemu-x86.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/board/emulation/qemu-x86.rst b/doc/board/emulation/qemu-x86.rst
index 15f56b6..c604e42 100644
--- a/doc/board/emulation/qemu-x86.rst
+++ b/doc/board/emulation/qemu-x86.rst
@@ -193,6 +193,9 @@ Linux is selected from grub, e.g. with `debian-12.1.0-i386-netinst.iso`::
The bochs video driver also seems to cause problems before the OS is able to
show a display.
+The QEMU `-cdrom` option is intended to work with the original ISO-format
+images, not the recently invented ISOHybrid image.
+
Finally, the use of `-M accel=kvm` is intended to use the native CPU's
virtual-machine features to accelerate operation, but this causes U-Boot to hang
when jumping 64-bit mode, at least on AMD machines. This may be a bug in U-Boot