[atv-bootloader] Re: kexec for Mythbuntu 11.04

[Scott D. Davilla]

Following the same procedures as my previous post, I can successfully
launch the setup for a Mythbuntu 10.04 LTS installation.

But I think I would like to stick with 11.04.

How do you add debugging to determine where the install is hanging?


Once you kexec out, you are pretty much at the mercy of the kernel 
you have kexec'ed to. I'd check into  vesa video=vesafb, I think that 
was dropped. If so, try efifb, that's similar in setup to vesa.


Scott

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[atv-bootloader] Re: kexec for Mythbuntu 11.04

[DFishburn]

A little further now ...

I compared some files and found I was missing the .disk directory, so
I did this now:

 mkdir mb1104 usb
 sudo mount mythbuntu-11.04-desktop-i386.iso mb1104 -t iso9660 -o loop
 sudo mount /dev/sdd1 usb
 sudo cp -arp mb1104/* usb
 sudo cp -arp mb1104/.disk usb
 sudo umount usb
 rm mb1104 usb


I used this kexec:
 kexec --load /tmp/casper/vmlinuz --initrd=/tmp/casper/initrd.lz --
 command-line=file=/preseed/mythbuntu.seed boot=casper initrd=/
 casper/initrd.lz nosplash vesa video=vesafb


This successfully booted the liveUSB, then I double clicked on the
install MythBuntu icon and them it just hangs there.  No idea what it
might be doing.  I have let it sit for an hour so far.

Any suggestions?

Thanks,
Dave

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[atv-bootloader] Re: kexec for Mythbuntu 11.04

[DFishburn]

 Just trying to figure out the correct kexec line.
 I copied the install to a USB key and mounted it to tmp.

                 cat tmp/isolinux/isolinux.cfg
                     include menu.cfg
                     default vesamenu.c32
                     prompt 0
                     timeout 50
                     ui gfxboot bootlogo

                 cat tmp/boot/grub/loopback.cfg
                     menuentry Install Mythbuntu {
                         linux /casper/vmlinuz file=/cdrom/preseed/
 mythbuntu.seed boot=casper only-ubiquity iso-scan/filename=${iso_path}
 quiet splash --
                         initrd /casper/initrd.lz
                     }

I ended up using this line:
kexec --load /tmp/casper/vmlinuz --initrd=/tmp/casper/initrd.lz --
command-line=file=/tmp/preseed/mythbuntu.seed boot=casper initrd=/
casper/initrd.lz nosplash vesa video=vesafb

-- This just stops after the BusyBox 1.1.7.1 prompt and shows:
(initramsfs) Unable to fina a medium containing a live file system.

When I am at this prompt, I can browse the file system.  I do see a /
cdrom directory but it is empty.

To create the USB key with the Mythbuntu 11.04 install I simply
mounted the ISO and ran this:
mkdir mb1104 usb
sudo mount mythbuntu-11.04-desktop-i386.iso mb1104 -t iso9660 -o loop
sudo mount /dev/sdd1 usb
sudo cp -arp mb1104/* usb
sudo umount usb
rm mb1104 usb

Not sure if I have the correct kexec line, but simply created the
mythbuntu install USB key incorrectly.

TIA,
Dave

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