qemu-run-trick: correct QEMU KVM option handling to allow run in KVM disabled mode.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
qemu-run-trick: document alternative options to switch system root.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
qemu-run-trick: 9p file-system has to be used in 9p2000.u version to work with recent kernels.
QEMU trick tested to work with 4.4.5 kernel with AUFS support.
Test with overlay leads to kernel panic:
BUG: unable to handle kernel paging request at
000000040020006c
IP: [<
ffffffffc00433e8>] v9fs_fid_find+0x58/0x90 [9p]
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
qemu-run-trick: use more descriptive labels during mount.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
qemu-run-trick: if aufs is not found, try to run with overlay.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
qemu-run-trick: Do not allow to be run as root, it is too dangerous.
If overlay operation fails then following setup can lead
to seriously breaking host system.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
QEMU trick to run own system inside QEMU with root overlay and home pass-through.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>