I've just hit what appears to be the same issue, running Jaunty amd64 cdrom copied onto a usb disk using the 'system -> admin -> usb startup disk creator' from a Jaunty install on another system.
Looks like my usb startup disk and my internal disk have both been assigned sda (and my disk has double mount point entries - weird). ubu...@ubuntu:~$ df -h Filesystem Size Used Avail Use% Mounted on tmpfs 1.9G 2.7M 1.9G 1% /lib/modules/2.6.28-11-generic/volatile tmpfs 1.9G 2.7M 1.9G 1% /lib/modules/2.6.28-11-generic/volatile tmpfs 1.9G 0 1.9G 0% /lib/init/rw varrun 1.9G 100K 1.9G 1% /var/run varlock 1.9G 0 1.9G 0% /var/lock udev 1.9G 160K 1.9G 1% /dev tmpfs 1.9G 580K 1.9G 1% /dev/shm rootfs 124M 102M 17M 86% / /dev/sda1 3.9G 825M 3.1G 21% /cdrom /dev/loop0 674M 674M 0 100% /rofs tmpfs 124M 102M 17M 86% /tmp tmpfs 1.9G 2.7M 1.9G 1% /lib/modules/2.6.28-11-generic/volatile tmpfs 1.9G 2.7M 1.9G 1% /lib/modules/2.6.28-11-generic/volatile /dev/sda5 5.5G 599M 4.7G 12% /media/disk /dev/sda7 37G 21G 15G 58% /media/disk-1 /dev/sda1 30G 3.9G 24G 14% /media/disk-2 /dev/sda8 37G 177M 35G 1% /media/disk-3 /dev/sda9 35G 177M 33G 1% /media/disk-4 tmpfs 1.9G 2.7M 1.9G 1% /lib/modules/2.6.28-11-generic/volatile /dev/sda5 5.5G 599M 4.7G 12% /media/disk /dev/sda7 37G 21G 15G 58% /media/disk-1 /dev/sda1 30G 3.9G 24G 14% /media/disk-2 /dev/sda8 37G 177M 35G 1% /media/disk-3 /dev/sda9 35G 177M 33G 1% /media/disk-4 It makes sense that we attempt to unmount all the mount points related to a disk before we attempt to alter the partition table. Of course, we need sda1 as its where our live root partition is mounted and thus we enter the 'infinite loop'. lspci below and dmesg output attached. ubu...@ubuntu:~$ lspci 00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03) 00:03.0 Communication controller: Intel Corporation 4 Series Chipset HECI Controller (rev 03) 00:03.2 IDE interface: Intel Corporation 4 Series Chipset PT IDER Controller (rev 03) 00:03.3 Serial controller: Intel Corporation 4 Series Chipset Serial KT Controller (rev 03) 00:19.0 Ethernet controller: Intel Corporation 82567LM-3 Gigabit Network Connection (rev 02) 00:1a.0 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #5 (rev 02) 00:1a.2 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #6 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801JD/DO (ICH10 Family) PCI Express Port 1 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801JD/DO (ICH10 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a2) 00:1f.0 ISA bridge: Intel Corporation 82801JDO (ICH10DO) LPC Interface Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801JD/DO (ICH10 Family) 4-port SATA IDE Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801JD/DO (ICH10 Family) SMBus Controller (rev 02) 00:1f.5 IDE interface: Intel Corporation 82801JD/DO (ICH10 Family) 2-port SATA IDE Controller (rev 02) 01:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce 7600 GS] (rev a1) 02:05.0 IDE interface: Integrated Technology Express, Inc. IT8213 IDE Controller ** Attachment added: "dmesg output" http://launchpadlibrarian.net/26194454/dmesg -- usb startup disk failed to unmount /cdrom when change partition tables https://bugs.launchpad.net/bugs/292493 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
