henrix++; Having appeared to have to have nailed the problem by spotting the "TALPA Filesystem Interceptor". I installed Sophos anti- virus for linux v7 and TALPA appears to have been part of it. The problem is no longer reproducible having uninstalled sophos. I have tried this on several machines and they are no longer having problems with update-grub.
dtc-admin@DTC141:/opt/sophos-av$ update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.2.0-25-generic Found initrd image: /boot/initrd.img-3.2.0-25-generic Found linux image: /boot/vmlinuz-3.2.0-23-generic Found initrd image: /boot/initrd.img-3.2.0-23-generic Found memtest86+ image: /boot/memtest86+.bin /usr/lib/os-probes/50mounted-tests: line 92: 15723 Killed grub-mount "$partition" "$tmpmnt" 2> /dev/null /usr/lib/os-probes/50mounted-tests: line 92: 15743 Killed grub-mount "$partition" "$tmpmnt" 2> /dev/null done root@localhost:/opt/sophos-av# ./uninstall.sh Uninstalling Sophos Anti-Virus. WARNING: Sophos Anti-Virus still running. Do you want to stop Sophos Anti-Virus? Yes(Y)/No(N) [N] > y Stopping Sophos Anti-Virus. Sophos Anti-Virus has been uninstalled. root@localhost:/opt/sophos-av# root@localhost:/opt/sophos-av# logout dtc-admin@localhost:/opt$ sudo update-grub [sudo] password for dtc-admin: Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.2.0-25-generic Found initrd image: /boot/initrd.img-3.2.0-25-generic Found linux image: /boot/vmlinuz-3.2.0-23-generic Found initrd image: /boot/initrd.img-3.2.0-23-generic Found memtest86+ image: /boot/memtest86+.bin Found Windows 7 (loader) on /dev/sda1 done dtc-admin@localhost:/opt$ Many thanks to everyone for their interest and insight into this. Especially to henrix, to whom I now owe a pint. E. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1027110 Title: BUG: unable to handle kernel NULL pointer dereference at (null); RIP: 0010:[<ffffffff81313532>] [<ffffffff81313532>] strlen+0x2/0x20 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1027110/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
