This is not correct. The advice applies only to enabling debug messages in modules, but how does one enable debug messages kernel image? For example one could want to see debug messages from kernel/module.c which is not in any module, and the kernel parameter would be:
dyndbg="file kernel/module.c +p" but grub turns that into "dyndbg=file kernel/module.c +p" which kernel fails to parse. There are other reports on the web: http://savannah.gnu.org/bugs/?44580 https://access.redhat.com/solutions/1152603 https://lists.ozlabs.org/pipermail/petitboot/2016-September/000477.html ** Bug watch added: GNU Savannah Bug Tracker #44580 http://savannah.gnu.org/bugs/?44580 ** Changed in: grub2 (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838070 Title: Unable to add dyndbg to command line To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1838070/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
