[2900597038] Upstream Reporter: Nikita Dubrovski
Upstream issue status: Open
Upstream description:

Boot fails:
```
Mar 06 14:16:38 systemd[1]: Starting coreos-livepxe-rootfs.service - Acquire Live PXE rootfs Image...
Mar 06 14:16:39 coreos-livepxe-rootfs[835]: No rootfs image found. Modify your PXE configuration to add the rootfs
Mar 06 14:16:39 coreos-livepxe-rootfs[835]: image as a second initrd, or use the coreos.live.rootfs_url kernel parameter
Mar 06 14:16:39 coreos-livepxe-rootfs[835]: to specify an HTTP or HTTPS URL to the rootfs.
Mar 06 14:16:39 systemd[1]: coreos-livepxe-rootfs.service: Main process exited, code=exited, status=1/FAILURE
```

Despite concatenated `coreos-live-initramfs` contains all required files withing:
```
89684928 0x5587BC0 ASCII cpio archive (SVR4 with no CRC), file name: "root.squashfs", file name length: "0x0000000E", file size: "0x26C4C000"
740113468 0x2C1D3C3C ASCII cpio archive (SVR4 with no CRC), file name: "etc", file name length: "0x00000004", file size: "0x00000000"
740113584 0x2C1D3CB0 ASCII cpio archive (SVR4 with no CRC), file name: "etc/coreos-live-rootfs", file name length: "0x00000017", file size: "0x00000012"
```
Those are not present under `/`