Due to parallel probing of the linux kernel `/dev/sd*` can't be used to
reliably address a hard disk. This can be seen by the many spurious
failures of the dracut CI, where `mdadm` failed with error 524 or tests
failed due to the success marker message written to the wrong disk.
* don't rely on `/dev/sd*` but use disk ids and `/dev/disk/by-id/ata-disk_<name>`
* specify the exact qemu machine architecture `-M q35` needed for the
disk ids. A later patch will move this to `run-qemu`, when all tests are converted
* due to `-M q35` the interface names have changed from
`ens2` -> `enp0s1` and `ens3` -> `enp0s2`
Because some of the CI tests fail randomly while grepping for the
test success marker, let's be specific of the file format grep will
search to eleminate all failure sources.
This finally allows running the test suite completely in a rootless container:
```
❯ podman run \
--user 0 \
-v /dev:/dev \
-v ./:/dracut \
-it \
quay.io/haraldh/dracut-fedora:33 \
bash -c 'cd /dracut; make DRACUT_NO_XATTR=1 check'
```
New systemd defaults to generating MAC addresses for software devices (whereas
previously they would inherit them from the first enslaved slave).
Sadly, among the things this breaks is our test fixture, where the dhcp servers
are configured to expect a particular MAC address. Disable this for the
affected tests, which are essentially the ones that use bridges and bonds.
If the network-manager plugin is used instead, it wouldn't write out
ifcfg files and we wouldn't have anything to check.
While at that, also enable the test.
The IFCFG test will make sure the network-legacy plugin keeps writing
out correct ifcfg files.
This is a separate commit so that actual changes are visible in the
following one.
Harald Hoyer