On Mon, Jan 23, 2023 at 06:20:16PM +0100, Willy Tarreau wrote:
> Ah now I think I understand Paul's question. I didn't know that the
> userland version was not always provided. I've always had both side
> by side.
>
> > It would be great if we can avoid building qemu from the source. But if
> > not, let's go with that.
>
> As Paul indicated, it's really trouble-free and I think I've only done
> that since the very first day I started to use QEMU, reason why I probably
> never noticed that not everything was packaged.
>
> Then at least to respond to Paul, it could make sense to add a note that
> on some distros the userland version might not always be provided and
> might require a pretty simple rebuild of QEMU.
Ah well...
I figured it out. It turned qemu-user is a different package.
So I have "qemu-system" installed, but not "qemu-user".
Without building from source, just do this on Ubuntu:
$ sudo apt-get install qemu-user -y
...
Preparing to unpack .../qemu-user_1%3a6.2+dfsg-2ubuntu6.6_amd64.deb ...
Unpacking qemu-user (1:6.2+dfsg-2ubuntu6.6) ...
Selecting previously unselected package qemu-user-binfmt.
Preparing to unpack .../qemu-user-binfmt_1%3a6.2+dfsg-2ubuntu6.6_amd64.deb ...
Unpacking qemu-user-binfmt (1:6.2+dfsg-2ubuntu6.6) ...
Setting up qemu-user (1:6.2+dfsg-2ubuntu6.6) ...
Setting up qemu-user-binfmt (1:6.2+dfsg-2ubuntu6.6) ...
Processing triggers for man-db (2.10.2-1) ...
$ which qemu-x86_64
/usr/bin/qemu-x86_64
$ sudo make run-user
MKDIR sysroot/x86/include
make[1]: Entering directory '/home/ammarfaizi2/work/linux.work.cc/tools/include/nolibc'
make[2]: Entering directory '/home/ammarfaizi2/work/linux.work.cc'
make[2]: Leaving directory '/home/ammarfaizi2/work/linux.work.cc'
make[2]: Entering directory '/home/ammarfaizi2/work/linux.work.cc'
INSTALL /home/ammarfaizi2/work/linux.work.cc/tools/testing/selftests/nolibc/sysroot/sysroot/include
make[2]: Leaving directory '/home/ammarfaizi2/work/linux.work.cc'
make[1]: Leaving directory '/home/ammarfaizi2/work/linux.work.cc/tools/include/nolibc'
CC nolibc-test
83 test(s) passed.
Sorry for that. I didn't know that they come from different packages.
It works fine for me now.
--
Ammar Faizi
