Public bug reported: In search of a netboot solution for system z, I found https://share.confex.com/share/123/webprogram/Session15694.html which discusses some work suse has done to support kexec from grub-emu. The end result is that they an boot kernel+initrd and execute grub-emu and have it load grub config files and load the operating system kernel.
This is very similar in path to the way that powerNV works, where there is kernel+initrd and petitboot. Either solution to provide a netboot functionality will require addressing some interesting platform characteristics of zSeries. At very least there is no common way to determine inside a zVM guest which of the network devices is "yours" to use. That is commonly passed in in kernel parameters. More information is available at https://share.confex.com/share/123/webprogram/Session15694.html and patches at https://build.opensuse.org/package/show/openSUSE:Factory/grub2 (search for s390) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Summary changed: - support grub-emu and kexec + support grub-emu and kexec loader ** Description changed: In search of a netboot solution for system z, I found - https://share.confex.com/share/123/webprogram/Session15694.html + https://share.confex.com/share/123/webprogram/Session15694.html which discusses some work suse has done to support kexec from grub-emu. The end result is that they an boot kernel+initrd and execute grub-emu and have it load grub config files and load the operating system kernel. This is very similar in path to the way that powerNV works, where there is kernel+initrd and petitboot. Either solution to provide a netboot functionality will require addressing some interesting platform characteristics of zSeries. At very least there is no common way to determine inside a zVM guest which of the network devices is "yours" to use. That is commonly passed in in kernel parameters. + + More information is available at + https://share.confex.com/share/123/webprogram/Session15694.html + and patches at + https://build.opensuse.org/package/show/openSUSE:Factory/grub2 (search for s390) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1524029 Title: support grub-emu and kexec loader To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1524029/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
