[bug #30143] loopback loop /xxx.iso and set root=(loop) causes the machine to reboot

[Leo Bergolth]

URL:
  <http://savannah.gnu.org/bugs/?30143>

                 Summary: loopback loop /xxx.iso and set root=(loop) causes
the machine to reboot
                 Project: GNU GRUB
            Submitted by: bergolth
            Submitted on: Di 15 Jun 2010 17:31:34 GMT
                Category: Booting
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: 1.98
         Reproducibility: Every Time
         Planned Release: None

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Details:

I am trying to boot from an iso that resides on a USB drive (FAT32
formatted), using the following config:

----------------------------------------
menuentry 'GRML' {
  iso_path=/iso/grml_2010.04.iso
  export iso_path
  loopback loop $iso_path
  set root=(loop)
  configfile /boot/grub/grub.cfg
}
----------------------------------------

Selecting the entry causes the machine to reboot.

When I enter the commands on the grub commandline, it reboots at
"set root=(loop)".

Using "configfile (loop)/boot/grub/grub.cfg" correctly shows the
corresponding boot menu but, of course, without changing the root, all paths
referenced in this file won't work.





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