Red Hat Bugzilla – Bug 810659
iso image in boot partition cannot boot
Last modified: 2013-02-13 09:13:01 EST
Years ago I wanted to install Fedora which was distributed as a DVD but I had no DVD burner... So, I developed the technique to copy the iso to my boot partition, copy the selected vmlinuz and initrd.img from the distro isolinux directory, and run vmlinuz with the associated anaconda initrd.img, and Voila! Fedora comes to life. These days, optical readers are not necessarily going to be present in the lightweight net books and such, but USB is always present, so there is still a need to do this.
The syslinux stanza looks like this:
MENU LABEL ^Install / Upg Fedora-16
APPEND lang=en_US keymap=us
Today, I tried a similar technique to boot a Live image from my boot partition of my traveling USB disk. I suffered obstruction from dracut.
Description of problem:
dracut won't boot an iso image from the boot partition of a disk.
Steps to Reproduce:
I tried two techniques:
First Technique - vmlinuz0:
MENU LABEL Fedora 16 Live (LXDE-32)
Note: the iso image is located in the same directory as vmlinuz0 and initrd0.img.
This technique fails before any graphical activity:
[ 2.340273] generic-usb 0003:0627:0001.001: inout,hidraw0:USB HID v0.01 pointer [QEMU 0.11.0 QEMU USB Tablet] on usb-0000:00:01.2-2/input0
[ 2.426719] dracut: dracut-013-18.fc16
[ 2.544125] dracut Refusing to continue
[ 2.554336] dracut Warning: dracut; FATAL: No or empty root= argument
Second Technique - memdisk:
MENU LABEL Fedora 16 Live (LXDE-32)
APPEND iso raw
This technique fails after the graphical load screen starts and the progress bars are midway and the "Fedora 16" message in the lower right corner has displayed:
dracut Warning: No root device "live:/dev/disk/by-label/Fedora-16-i686-Live-LXDE.iso" found
the second technique drops me into a debug shell, but I don't know what to do or what to find, so I await your instructions.
See above in Steps to Reproduce
Live media should boot and run as though I had the optical CD in a CDROM.
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