Bug 709778

Description of problem:
livecd-iso-to-disk will not created bootable F15 install usb key from F15 DVD .iso

Version-Release number of selected component (if applicable):
livecd-tools-13.2-1.fc13.x86_64

How reproducible:
every time

Steps to Reproduce:
1. insert usb key, then unmount it
2. follow procedures in http://fedoraproject.org/wiki/How_to_create_and_use_Live_USB
3. insert key in a test machine and power on
  
Actual results:
error msgs: missing operating system

Expected results:
F15 install menu

Additional info:
Here is a transcript of how I always build the bootable usb key in rawhide or F15 except it is done on a Fedora 13 system, completely updated:
**************NOTE: 8GB usb pen drive inserted here. It had a working F15 DVD.iso installed on it...

[root@P5K-EWIFI ~]# dmesg | tail
sd 10:0:0:0: [sdh] Write Protect is off
sd 10:0:0:0: [sdh] Mode Sense: 43 00 00 00
sd 10:0:0:0: [sdh] Assuming drive cache: write through
sd 10:0:0:0: [sdh] Assuming drive cache: write through
 sdh: sdh1
sd 10:0:0:0: [sdh] Assuming drive cache: write through
sd 10:0:0:0: [sdh] Attached SCSI removable disk
EXT4-fs (sdh1): recovery complete
EXT4-fs (sdh1): mounted filesystem with ordered data mode
SELinux: initialized (dev sdh1, type ext4), uses xattr
[root@P5K-EWIFI ~]# ls /media
LIVE
[root@P5K-EWIFI ~]# ls /media/live
ls: cannot access /media/live: No such file or directory
[root@P5K-EWIFI ~]# ls /media/LIVE
Fedora-15-x86_64-DVD.iso  images  lost+found  syslinux
[root@P5K-EWIFI ~]# ls /media/LIVE
Fedora-15-x86_64-DVD.iso  images  lost+found  syslinux
[root@P5K-EWIFI ~]# umount /dev/sdh1
[root@P5K-EWIFI ~]# livecd-iso-to-disk --format --reset-mbr /data/Fedora/15/*.iso /dev/sdh1
Verifying image...
/data/Fedora/15/Fedora-15-x86_64-DVD.iso:   52fa5a15a47abe4475e5b09641a18667
Fragment sums: 9554a83b8241976a7ccad82c6797f213cd8e45e6b899adab2687eab12c6c
Fragment count: 20
Checking: 100.0%

The media check is complete, the result is: PASS.

It is OK to use this media.
WARNING: THIS WILL DESTROY ANY DATA ON /dev/sdh!!!
Press Enter to continue or ctrl-c to abort

Waiting for devices to settle...
mke2fs 1.41.10 (10-Feb-2009)
Filesystem label=LIVE
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
494832 inodes, 1977856 blocks
98892 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2025848832
61 block groups
32768 blocks per group, 32768 fragments per group
8112 inodes per group
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 34 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
/data/Fedora/15/Fedora-15-x86_64-DVD.iso uses initrd.img w/o install.img
Size of DVD image: 3434
Size of isolinux/initrd.img: 95
Available space: 7074
**************************NOTE: usb automounted here.***************************
Copying DVD image to USB stick
Updating boot config file
Installing boot loader
extlinux: cannot find device for path /media/usbdev.1pzoOo/syslinux
USB stick set up as live image!
[root@P5K-EWIFI ~]# ls /media
[root@P5K-EWIFI ~]# mount
/dev/mapper/VolGroup00-fedora13 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0")
/dev/sdb5 on /boot type ext4 (rw)
/dev/sdf2 on /data type ext3 (rw)
/dev/mapper/VolGroup01-clydehome on /home type ext4 (rw)
/dev/sdf1 on /mnt/masterboot type ext4 (rw)
/dev/sdf6 on /mnt/seti type ext3 (rw)
/dev/sdf3 on /mnt/share type vfat (rw,umask=0077,shortname=winnt)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon on /home/kunkelc/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=kunkelc)
[root@P5K-EWIFI ~]# umount /dev/sdh1
umount: /dev/sdh1: not mounted
[root@P5K-EWIFI ~]# mount /dev/sdh1 /media
[root@P5K-EWIFI ~]# ls /media
Fedora-15-x86_64-DVD.iso  images  lost+found  syslinux
[root@P5K-EWIFI ~]# umount /media
*********************NOTE: here stick was placed in another test machine, but would not boot.  Following are the msgs (hand transcribed):

Missing Operating System.

Reboot and Select proper Boot Device
or insert Boot Media in selected Boot device and press a key.

********************NOTE:  removed stick from test machine and reinserted in F13 machine and continued with process that works in rawhide and F15.

[root@P5K-EWIFI ~]# ls /media
LIVE
[root@P5K-EWIFI ~]# umount /dev/sdh1
[root@P5K-EWIFI ~]# livecd-iso-to-disk /data/Fedora/15/*.iso /dev/sdh1
Verifying image...
/data/Fedora/15/Fedora-15-x86_64-DVD.iso:   52fa5a15a47abe4475e5b09641a18667
Fragment sums: 9554a83b8241976a7ccad82c6797f213cd8e45e6b899adab2687eab12c6c
Fragment count: 20
Checking: 100.0%

The media check is complete, the result is: PASS.

It is OK to use this media.
/data/Fedora/15/Fedora-15-x86_64-DVD.iso uses initrd.img w/o install.img
Size of DVD image: 3434
Size of isolinux/initrd.img: 95
Available space: 6976
Copying DVD image to USB stick
Updating boot config file
Installing boot loader
extlinux: cannot find device for path /media/usbdev.M96t3P/syslinux
USB stick set up as live image!

[root@P5K-EWIFI ~]# 
*************************NOTE: removed stick and inserted in test machine and received same messages as above re: missing operating system.
*************************NOTE: put stick back in F13 machine
[root@P5K-EWIFI ~]# ls /media
LIVE
[root@P5K-EWIFI ~]# ls /media/live
ls: cannot access /media/live: No such file or directory
[root@P5K-EWIFI ~]# ls /media/LIVE
Fedora-15-x86_64-DVD.iso  images  lost+found  syslinux
[root@P5K-EWIFI ~]# 

*************************NOTE:  reboot into rawhide and repeated above steps and put stick in test machine and it booted into the F15 installation menu as expected.