When META has never been written (e.g. booted from a disk image), it
won't be detected as `talosmeta`.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
Detect CD devices, and set size to 0 for CD without media.
In user disk wipe tests, skip device mapper devices and CD-ROM.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
Uses go-siderolabs/go-blockdevice/v2 for all the hard parts,
provides new resource `Disk` which describes all disks in the system.
Additional resource `SystemDisk` always point to the system disk (based
on the location of `META` partition).
The `Disks` API (and `talosctl disks`) provides a view now into the
`talosctl get disks` to keep backwards compatibility.
QEMU provisioner can now create extra disks of various types: IDE, AHCI,
SCSI, NVME, this allows to test detection properly.
The new resource will be the foundation for volume provisioning (to pick
up the disk to provision the volume on).
Example:
```
talosctl -n 172.20.0.5 get disks
NODE NAMESPACE TYPE ID VERSION SIZE READ ONLY TRANSPORT ROTATIONAL WWID MODEL SERIAL
172.20.0.5 runtime Disk loop0 1 65568768 true
172.20.0.5 runtime Disk nvme0n1 1 10485760000 false nvme nvme.1b36-6465616462656566-51454d55204e564d65204374726c-00000001 QEMU NVMe Ctrl deadbeef
172.20.0.5 runtime Disk sda 1 10485760000 false virtio true QEMU HARDDISK
172.20.0.5 runtime Disk sdb 1 10485760000 false sata true t10.ATA QEMU HARDDISK QM00013 QEMU HARDDISK
172.20.0.5 runtime Disk sdc 1 10485760000 false sata true t10.ATA QEMU HARDDISK QM00001 QEMU HARDDISK
172.20.0.5 runtime Disk vda 1 12884901888 false virtio true
```
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
Use shared locks, discover more partitions, some other small changes.
Re-enable the flaky test.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
This controller combines kobject events, and scan of `/sys/block` to
build a consistent list of available block devices, updating resources
as the blockdevice changes.
Based on these resources the next step can run probe on the blockdevices
as they change to present a consistent view of filesystems/partitions.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
