Wayland Live CD

**cecilpierce** · August 23rd, 2012

Originally Posted by lehjr

Think I found out why I can't boot the ISO directly from GRUB2. "What a remastersys iso needs is lupin-casper in order to boot up"

http://ubuntuforums.org/showpost.php...&postcount=136

I tried to boot an iso and no luck either, let us know how you do.

**lehjr** · August 23rd, 2012

Originally Posted by cecilpierce

I tried to boot an iso and no luck either, let us know how you do.

Basically, nerdopolis needs to install lupin-casper before making ISO in order for the ISO itself to be have loop support. Also, if needed, this can be added to /boot/grub/loopback.cfg if it isn't automatically generated:

Code:

menuentry "Try RebeccaBlackLinux without installing" {
	linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper iso-scan/filename=${iso_path} quiet splash --
	initrd /casper/initrd.gz
}

menuentry "Start RebeccaBlackLinux in safe graphics mode" {
	linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper xforcevesa iso-scan/filename=${iso_path} quiet splash --
	initrd /casper/initrd.gz
}

menuentry "Start RebeccaBlackLinux (compatibility mode)" {
	linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper xforcevesa iso-scan/filename=${iso_path} ramdisk_size=1048576 root=/dev/ram rw noapic noapci nosplash irqpoll --
	initrd /casper/initrd.gz
}

menuentry "Install RebeccaBlackLinux" {
	linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper only-ubiquity iso-scan/filename=${iso_path} quiet splash --
	initrd /casper/initrd.gz
}

menuentry "Test memory" {
	linux /install/memtest
}

Essentially, that's a GRUB2 cfg file. I don't believe it is required, but it allows the user to access the menu from the main GRUB2 installation with this added to /etc/grub.d/40_custom

Code:

menuentry "RebeccaBlackLinux" {
  iso_path="/home/leon/ISO/RebeccaBlackLinux.iso"
  export iso_path
  search --set --file $iso_path
  loopback loop $iso_path
  root=(loop)
  configfile /boot/grub/loopback.cfg
  loopback --delete loop
}

save and then run sudo update-grub
Notes:

spaces in the ISO name may cause problems
change the value for iso_path to match where you have your ISO.

Again though, this would only work with lupin-casper installed.

**nerdopolis** · August 23rd, 2012

Originally Posted by lehjr

Basically, nerdopolis needs to install lupin-casper before making ISO in order for the ISO itself to be have loop support. Also, if needed, this can be added to /boot/grub/loopback.cfg if it isn't automatically generated:

Code:

menuentry "Try RebeccaBlackLinux without installing" {
    linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper iso-scan/filename=${iso_path} quiet splash --
    initrd /casper/initrd.gz
}

menuentry "Start RebeccaBlackLinux in safe graphics mode" {
    linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper xforcevesa iso-scan/filename=${iso_path} quiet splash --
    initrd /casper/initrd.gz
}

menuentry "Start RebeccaBlackLinux (compatibility mode)" {
    linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper xforcevesa iso-scan/filename=${iso_path} ramdisk_size=1048576 root=/dev/ram rw noapic noapci nosplash irqpoll --
    initrd /casper/initrd.gz
}

menuentry "Install RebeccaBlackLinux" {
    linux /casper/vmlinuz file=/cdrom/preseed/custom.seed boot=casper only-ubiquity iso-scan/filename=${iso_path} quiet splash --
    initrd /casper/initrd.gz
}

menuentry "Test memory" {
    linux /install/memtest
}

Essentially, that's a GRUB2 cfg file. I don't believe it is required, but it allows the user to access the menu from the main GRUB2 installation with this added to /etc/grub.d/40_custom

Code:

menuentry "RebeccaBlackLinux" {
  iso_path="/home/leon/ISO/RebeccaBlackLinux.iso"
  export iso_path
  search --set --file $iso_path
  loopback loop $iso_path
  root=(loop)
  configfile /boot/grub/loopback.cfg
  loopback --delete loop
}

save and then run sudo update-grub
Notes:

spaces in the ISO name may cause problems
change the value for iso_path to match where you have your ISO.

Again though, this would only work with lupin-casper installed.

I'll investigate this, and see if I can get it to work. Thanks.

**lehjr** · August 23rd, 2012

Originally Posted by nerdopolis

I'll investigate this, and see if I can get it to work. Thanks.

Thanks for looking into it

btw, i did manage to dump the ISO to a spare hard drive pretty much in the same manor you would for a USB device, added a grub entry and booted that way so I could check out the CD.

The biggest Wayland issue I see is that the screen doesn't look like it gets updated enough for things like drop down menus (Firefox) and window resizes. But overall it's still progress.

**nerdopolis** · August 23rd, 2012

Originally Posted by lehjr

Thanks for looking into it

btw, i did manage to dump the ISO to a spare hard drive pretty much in the same manor you would for a USB device, added a grub entry and booted that way so I could check out the CD.

The biggest Wayland issue I see is that the screen doesn't look like it gets updated enough for things like drop down menus (Firefox) and window resizes. But overall it's still progress.

Yeah. That's caused by the X server that runs within Weston so that X apps work. Native apps work much better, but there are fewer of them

**nerdopolis** · August 24th, 2012

My new CD is available! I think it can actually be burned to a CD (not needing a DVD)!

I trimmed lots of packages out, and my next attempt is to get these KDE apps to compile around kdelibs which is build on QT5 which has the Wayland backend. I have QT and kdelibs working. I just need to get the apps working

**lehjr** · August 24th, 2012

Originally Posted by nerdopolis

My new CD is available! I think it can actually be burned to a CD (not needing a DVD)!

I trimmed lots of packages out, and my next attempt is to get these KDE apps to compile around kdelibs which is build on QT5 which has the Wayland backend. I have QT and kdelibs working. I just need to get the apps working

... and the ISO is bootable now without burning to a disk!!

**cecilpierce** · August 24th, 2012

Originally Posted by lehjr

... and the ISO is bootable now without burning to a disk!!

I copied and pasted your stuff and installed lupin-casper, but seems like somethings missing,
Heres what 40_custom has:
menuentry "RebeccaBlackLinux" {
iso_path="/home/cecil/ISO/RebeccaBlackLinux.iso"
export iso_path
search --set --file $iso_path
loopback loop $iso_path
root=(loop)
configfile /boot/grub/loopback.cfg
loopback --delete loop
}

Whats missing in the path maybe...?

**lehjr** · August 24th, 2012

Originally Posted by cecilpierce

I copied and pasted your stuff and installed lupin-casper, but seems like somethings missing,
Heres what 40_custom has:
menuentry "RebeccaBlackLinux" {
iso_path="/home/cecil/ISO/RebeccaBlackLinux.iso"
export iso_path
search --set --file $iso_path
loopback loop $iso_path
root=(loop)
configfile /boot/grub/loopback.cfg
loopback --delete loop
}

Whats missing in the path maybe...?

loopin-casper needed to be installed inside the CD environment, which it is now, but there is no /boot/grub/loopback.cfg on the CD. You can still boot without it though, but it will be a bit more code. I'm working on editing my own 40_custom to point to a config file I don't need to update grub or edit as root, since I will probably be messing around with a few different ISO's. I should have something usable posted for you in the next couple hours.