Missatge de Bo Berglund <bo.bergl...@gmail.com> del dia ds., 30 d’oct. 2021 a les 22:21:
> On Sat, 30 Oct 2021 18:21:29 +0200, josep lladonosa capell > <jlladon...@gmail.com> wrote: > >Missatge de Bo Berglund <bo.bergl...@gmail.com> del dia ds., 30 d’oct. > 2021 > >a les 15:54: > > > >> Is there some easy to understand way which will do this? > >> > >> On Ubuntu Desktop: > >> - Create new 1GB ext4 partition /dev/somepart1 using GParted on Ubuntu > >> - sudo mkdir /mnt/gparted (create mount point) > >> - sudo mount /dev/somepart1 /mnt/gparted > >> - cd /mnt/gparted > >> - wget > >> > https://downloads.sourceforge.net/gparted/gparted-live-1.3.1-1-amd64.iso > >> > >> Now I need to create the grub entry and this is where I have problems > >> because of the mixup > >> between grub and grub2 in the pages I have found. > >> > >> Can someone help filling in the final part of the actions I need? > >> The end result should be to have a last line in the boot menu saying: > >> > >> GParted Live > > >> > >Hello, Bo, > > > >From what I have read I suppose that you just want to boot an ISO image > >from grub, right? > > Yes, I have a new 1 GB partition on my hdd (inside an extended partition) > where > I have downloaded the GParted Live ISO file. > I want the system to use this to boot GParted Live from the boot menu. > > >One solution for me (I don't work on an EFI system, though) without extra > >partitioning and without the need of a bootable USB device and which does > >all the grub stuff for you is just installing the package grub-imageboot. > >Install it in your main Ubuntu bootable system (Desktop). > > I did this, it also installed something called memdisk into /boot > Note that my ISO file is in a *separate partition* which is mounted on > /boot/images via /etc/fstab using the UUID, so it is *not* part of the > actual > partition where the Ubuntu Desktop lives. > I have tested your setup in a virtualized EFI Xubuntu with a separate partition mounted in /boot/images like you with the ISO in it and it could not boot ISO file. The update-grub command found the file and added the menu option, but... after rebooting and selecting the menu option for ISO booting, it complained with a "file not found". After that, I moved the image to /boot, unmounted the /boot/images, removed partition from /etc/fstab, moved ISO file into /boot/images (note that images now is a directory in the same partition as /boot). Then, I did the update-grub and the ISO image booted from the grub menu. So the conclusion is that the menu option for ISO of grub-imageboot default installation needs having the images in the partition where /boot is, not in another partition. I cannot conclude that your configuration might work in some way (mounting partition from grub?) but that's beyond my experience with grub. I would go faster by just keeping the /boot/images directory in the same partition than /boot. Regards, Josep > > >The grub-imageboot default configuration lets you boot the .iso images > >found in the /boot/images/ directory. You can have a look at the > >/etc/default/grub-imageboot file. > > > >After the copy of the iso file into /boot/images/, just do "sudo > >update-grub" to make them appear into the grub boot menu. > > After I have done the apt install grub-imageboot and verified that the > /boot/images dir now contains the ISO file (after mounting the GParted > partition) I ran the sudo update-grub command which found the GParted iso > file. > > >It works for me on Ubuntu and Debian too. > > > > When I rebooted there *was* a new entry in the boot menu for GParted! > "Bootable ISO Image: gparted-live-1.3.1-1-amd64" > > So far so good! > > But when I selected it the ISO did *not* load, instead I got an error: > > error: file '/boot/memdisk' not found. > error: you need to load the kernel first. > Press any key to continue > > Question: > Are your systems multi-boot with several operating systems or just one? > My contains 3 systems and I want to add a 4th, GParted Live > > It seems like the memdisk file is the key here, it is put by apt into > /boot on > the *running* desktop system and I don't understand how it can be > accessible for > the boot unless the desktop partition is also mounted... > > This seems to be the showstopper now. > > > -- > Bo Berglund > Developer in Sweden > > >
