Note that PXE booting Bionic initrd works.
Even though change the initrd compress to gz, it still gets timeout $ unmkinitramfs initrd.img-5.4.0-42-generic ubuntu-focal-initrd/ $ cd ubuntu-focal-initrd/; find . | cpio -H newc -o | gzip > ../ubuntu-focal-new.initrd
Note that PXE booting Bionic initrd works.
Even though change the initrd compress to gz, it still gets timeout img-5.4. 0-42-generic ubuntu- focal-initrd/ focal-initrd/ ; find . | cpio -H newc -o | gzip > ../ubuntu- focal-new. initrd
$ unmkinitramfs initrd.
$ cd ubuntu-