Just an Update : umount -lfd was not enough So I'm trying to embed a startup script in a Live custom ISO :
losetup -d /dev/loop0 umount -lfd /isodevice And it works ** Description changed: Binary package hint: ubiquity Ubiquity cannot install if you are booting LiveCD directly from ISO. + Booting directly from GRUB to the ISO, mounts the ISO to /isodevice. + Ubiquity will not install (even if on separate disk) if this is not - unmounted. The result being that one cannot install Ubuntu in this - method. This method can be used to create a recovery partition or a - multi-usb bootable drive. For more explanation on how to do this: + unmounted. + + The result being that one cannot install Ubuntu in this method. + + This method can be used to create a recovery partition or a multi-usb + bootable drive. For more explanation on how to do this: ========== START ========== * Run the following commands which will create the directory /boot/iso and download the iso file to that directory. $ sudo -s # mkdir /boot/iso # cd /boot/iso # wget http://releases.ubuntu.com/maverick/ubuntu-10.10-desktop-i386.iso * Add a custom menu entry in GRUB2 configuration file. Edit /etc/grub.d/40_custom as root to look like this: #!/bin/sh echo "Adding 40_custom." >&2 exec tail -n +3 $0 menuentry "Maverick CD Image ISO" { set isofile=/boot/iso/ubuntu-10.10-desktop-i386.iso loopback loop (hd0,1)$isofile linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile noprompt noeject initrd (loop)/casper/initrd.lz } * Afterwards, run update-grub for the changes to be propagated to /boot/grub/grub.cfg # update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-... Found initrd image: /boot/initrd.img-... ========== STOP ========== - ==================Solution ================= + ================== Workaround ================= After casper copy to ram , it need to disconnect the loop device and unmount + + losetup -d /dev/loop0 umount -lfd /isodevice =========================================== The result of booting from the ISO directly from GRUB, is that the CD is that the partition where the ISO is located is mounted to /isodevice. Ubiquity seems to want to have control of all disks and unmount all disks before it starts installing. In the images here you see the example is sda2 for / and sda for the MBR. I have also tried this with a secondary disk where sdb1 was to be used for / and sdb for the MBR and ubiquity still complained that it had to to unmount /isodevice, even though it is on sda1. Doesn't make much sense to unmount a disk if you will not be editing any part of it. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: ubiquity 2.4.8 ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic i686 NonfreeKernelModules: wl Architecture: i386 Date: Thu Dec 2 16:34:42 2010 LiveMediaBuild: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubiquity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/684280 Title: casper toram forgets to disconnect loop device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/684280/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
