Public bug reported:
Binary package hint: ubiquity
This is specifically with xubuntu-10.04-desktop-i386.iso, booted from
grub2 with:
menuentry "Xubuntu Live 10.04 32bit" {
loopback loop (hd0,2)/xubuntu-10.04-desktop-i386.iso
linux (loop)/casper/vmlinuz boot=casper
iso-scan/filename=/xubuntu-10.04-desktop-i386.iso
file=(loop)/preseed/xubuntu.seed --
initrd (loop)/casper/initrd.lz
}
So the xubuntu iso is on the target partition, the partition table is
NOT to be changed, and the partition has already been formatted.
Where /var/log/syslog says:
Step_before = stepReady
progress_loop()
umount: /isodevice: device is busy
then ubiquity is trying to unmount the partition, even though there is
no need for this. Even worse, when umount fails, the installation is
effectively "blocked" from continuing. That's a "showstopper" bug
during an install.
Adding 'exit 0' to the top of /lib/partman/commit.d/01unmount_busy
allows the install to proceed.
I assume that some test should be added to 01unmount_busy, so that this
test is not made when the partition table is unchanged.
James
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
--
install "blocked" by unnecessary unmount-partition attempt
https://bugs.launchpad.net/bugs/598743
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