The problem is not there in Ubuntu 12.04.2 (kernel 3.5.0-54) and it is there in Ubuntu 12.04.3 (kernel 3.8.0-44).
My test case is to boot with ip=dhcp break=top. When the problem doesn't exist, I get an initramfs prompt in 2 seconds, when it exists I get it in 12 seconds, and that shows up in dmesg as well. Comparing those configs from https://wiki.ubuntu.com/Kernel/Configs/QuantalToRaring, I got: 3.5: # CONFIG_IP_PNP is not set 3.8: CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y Is it possible to revert those? Can we find out why they were enabled? If they're only needed on some arches (e.g. ARM), maybe they could only be enabled there? @rhansen, writing an alias e.g. initramfs_ip=* won't help, e.g. IPAPPEND 3 in pxelinux puts ip=* in the cmdline, I don't think it'll ever be patched to put initramfs_ip=* there... I think we should either get the configuration change reverted, or fix ipconfig.c so that it aborts if no NICs/modules are detected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1259861 Title: 5-10 second delay in kernel boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1259861/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs