This is not bug but default option of update-grub. It is not normal to make use of one grub with two different update-grub from different roots. Instead you should edit /etc/kernel-img.conf to disable post[install/remove] update-grub,
-- update leaves bootloader unable to find root partition https://bugs.launchpad.net/bugs/108554 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
