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`
* Correct the systemd generated sysroot.mount unit with the options
received by the DHCP request and do a `daemon-reload`.
* Inject the `nbd-client -check /dev/nbd0` in the finished initqueue.
* Reactivate the NBD tests and prepare them for NetworkManager tests.
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`
`qemu_add_drive_args` can be used to generate arguments to specify disks
for a qemu machine (`-M q35`).
This is mostly useful to address those raw disks via `/dev/disk/by-id`,
because due to parallel probing in the kernel `/dev/sd*` can point to
anything.
While creating the striped md raid0 sometimes this error occures:
```
mdadm: Defaulting to version 1.2 metadata
mdadm: RUN_ARRAY failed: Unknown error 524
Failed to clear hint file.
Device /dev/md0 not found.
Powering off.
```
Add debug output with the size of the disks.
Also create disks with multiple of 4096.
The kernel has an odd way to handle `"` surrounded parameters.
To handle the parameters as the kernel would do, no simple shell script
suffices, so a new utility `dracut-util` is introduced. Written in "C"
it handles `dracut-getarg` and `dracut-getargs` as the old shell script
functions `_dogetarg` and `_dogetargs` would.
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.
```
mke2fs 1.45.6 (20-Mar-2020)
Filesystem too small for a journal
Discarding device blocks: done
Creating filesystem with 1024 1k blocks and 128 inodes
Allocating group tables: 0/1 done
Writing inode tables: 0/1 done
Writing superblocks and filesystem accounting information: 0/1 done
cp: error writing '/sysroot/usr/bin/bash': No space left on device
cp: error writing '/sysroot/usr/bin/grep': No space left on device
cp: error writing '/sysroot/usr/bin/ping': No space left on device
[…]
```
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'
```
Harald Hoyer