[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1223477
Title:
Unable to read USB filesystems with EFI Bios
Status in QEMU:
Expired
Bug description:
Preamble and version:
With respect to my fix for using USB devices as -hda mentioned in bug 1223467
Using Qemu 1.6.0 with OVMF r11337-alpha (Qemu is built from Source, OVMF is
pre built)
Command:
qemu-system-i386.exe -m 1024 -hda \\.\PhysicalDrive1 -L ovmf-ia32
Fault:
The EFI Shell is able to detect the hda block device, report its capacity and
usage;
but it sees no files or directories on the device.
Similar commands:
I have also seen the same with
qemu-system-x86_64.exe -m 1024 -hda \\.\PhysicalDrive1 -L ovmf-ia32
and
qemu-system-x86_64.exe -m 1024 -hda \\.\PhysicalDrive1 -L ovmf-x64
Investigations:
I tried very small (500MB) and very large (32 GB) USB devices with no
difference.
I re-built several versions of Qemu in an identical build environment, and
found that:
Qemu 1.2.2 and before, all the above commands work and the EFI boot loader is
called.
Qemu 1.3.0-rc0 and after do not work and the USB device appears blank.
I'm reporting the bug here and not with OVMF because older versions of Qemu
with the same OVMF bios work perfectly.
In all cases using '-L pc-bios' works perfectly.
In all cases using an image of the USB device works.
Thanks
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