@Colin re comment #14: I'm not sure that I understand "filesystem corruption in the context of hibernation". The system hasn't been hibernated since installing Natty on the /dev/sda7 partition. Today's Natty upgrade did the following:
Setting up grub-common (1.99~rc1-8ubuntu1) ... Installing new version of config file /etc/grub.d/10_linux ... Setting up grub-pc (1.99~rc1-8ubuntu1) ... Installation finished. No error reported. Generating grub.cfg ... Found linux image: /boot/vmlinuz-2.6.38-7-generic Found initrd image: /boot/initrd.img-2.6.38-7-generic Found linux image: /boot/vmlinuz-2.6.38-6-generic Found initrd image: /boot/initrd.img-2.6.38-6-generic Found memtest86+ image: /boot/memtest86+.bin Found Windows 7 (loader) on /dev/sda1 Found Windows Recovery Environment (loader) on /dev/sda2 Found Windows Recovery Environment (loader) on /dev/sda3 done Maverick is installed on /dev/sda5 (and it's grub is the default install): sudo fdisk -l Disk /dev/sda: 320.1 GB, 320072933376 bytes 5 heads, 63 sectors/track, 1984579 cylinders Units = cylinders of 315 * 512 = 161280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x135c058f Device Boot Start End Blocks Id System /dev/sda1 * 7 1301 203776 7 HPFS/NTFS /dev/sda2 1301 651462 102400360+ 7 HPFS/NTFS /dev/sda3 1905278 1984571 12488704 7 HPFS/NTFS /dev/sda4 651463 1905277 197475862+ 5 Extended /dev/sda5 651463 1738212 171163093+ 83 Linux /dev/sda6 1868262 1905277 5829988+ 82 Linux swap / Solaris /dev/sda7 1738213 1868258 20482048 83 Linux sudo fdisk -l Disk /dev/sda: 320.1 GB, 320072933376 bytes 5 heads, 63 sectors/track, 1984579 cylinders Units = cylinders of 315 * 512 = 161280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x135c058f Device Boot Start End Blocks Id System /dev/sda1 * 7 1301 203776 7 HPFS/NTFS /dev/sda2 1301 651462 102400360+ 7 HPFS/NTFS /dev/sda3 1905278 1984571 12488704 7 HPFS/NTFS /dev/sda4 651463 1905277 197475862+ 5 Extended /dev/sda5 651463 1738212 171163093+ 83 Linux /dev/sda6 1868262 1905277 5829988+ 82 Linux swap / Solaris /dev/sda7 1738213 1868258 20482048 83 Linux Natty overwrites the existing grub install (maverick's) and afterwards fails to recognize that maverick (on /dev/sda5) exists. While mount/unmount works: $ sudo mount /dev/sda5 /mnt [sudo] password for natty: natty@mavericklaptop:~$ mount /dev/sda7 on / type ext4 (rw,errors=remount-ro,commit=0) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/natty/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=natty) /dev/sda5 on /mnt type ext4 (rw) natty@mavericklaptop:~$ sudo umount /dev/sda5 natty@mavericklaptop:~$ mount /dev/sda7 on / type ext4 (rw,errors=remount-ro,commit=0) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/natty/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=natty) natty@mavericklaptop:~$ sudo update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-2.6.38-7-generic Found initrd image: /boot/initrd.img-2.6.38-7-generic Found linux image: /boot/vmlinuz-2.6.38-6-generic Found initrd image: /boot/initrd.img-2.6.38-6-generic Found memtest86+ image: /boot/memtest86+.bin Found Windows 7 (loader) on /dev/sda1 Found Windows Recovery Environment (loader) on /dev/sda2 Found Windows Recovery Environment (loader) on /dev/sda3 Found Ubuntu 10.10 (10.10) on /dev/sda5 done BTW: $ sudo fsck /dev/sda5 && sudo update-grub seems simpler than: $ sudo mount /dev/sda5 /mnt && sudo umount /dev/sda5 && sudo update-grub Either way something has to give, as continuing to have to go through contortions every time that natty installs/overwrites/changes grub is growing very tiresome. Next step will be to install grub to it's own partition so that natty can't mess with it at all. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/683355 Title: os-prober fails to find OSes on uncleanly-unmounted filesystems -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
