here is the manual reproduction root@ubuntu:~# /etc/kernel/postinst.d/zz-update-grub 4.4.0-64-generic /boot/vmlinuz-4.4.0-64-generic Generating grub configuration file ... Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported. Found linux image: /boot/vmlinuz-4.4.0-64-generic Found initrd image: /boot/initrd.img-4.4.0-64-generic Found linux image: /boot/vmlinuz-4.4.0-62-generic Found initrd image: /boot/initrd.img-4.4.0-62-generic done
root@ubuntu:~# df -m / Filesystem 1M-blocks Used Available Use% Mounted on /dev/vda3 1777 1510 154 91% / root@ubuntu:~# resize2fs /dev/vda3 resize2fs 1.42.13 (17-May-2015) Filesystem at /dev/vda3 is mounted on /; on-line resizing required old_desc_blocks = 1, new_desc_blocks = 131 The filesystem on /dev/vda3 is now 548404992 (4k) blocks long. root@ubuntu:~# df -m / Filesystem 1M-blocks Used Available Use% Mounted on /dev/vda3 2013606 1507 1926382 1% / root@ubuntu:~# /etc/kernel/postinst.d/zz-update-grub 4.4.0-64-generic /boot/vmlinuz-4.4.0-64-generic Generating grub configuration file ... grub-probe: error: unknown filesystem. ** Description changed: don't really know if this is a resize2fs problem or a grub problem. But we discovered it when trying to cloud-init bootstrap a node with larger than 2 TB disk. - Create a virtual or a physical node with more than 2TB disk. install ubuntu cloud image on disk. boot and let cloud init run it's course, after that grub2 os-probe will fail with this error message: grub-probe: error: unknown filesystem. + + Have tested this in both trusty and xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1666853 Title: grub-probe when fs is larger than 2tb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1666853/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
