For the record, perhaps it would be useful to others in the same situation to be hinted to read what's in grub.cfg: it contains the reference to boot file and boot prompt (see the menu entry).
Using these references I was able to complete a boot. Don't forget to include all options in the "linux …" command (boot file) piotr On 10/04/2017, 良ϖ <p.de.bois...@gmail.com> wrote: > I've got some new stuff: > > Using Grub2 command line I am able to invoke `ls` to see all available > device / partitions and guixsd bootable partition is present as > (hd0,msdos1). > > So I want to boot Linux manually from Grub2 command line. > set root=(hd0,msdos1) > > Next steps are to set boot files and boot prompt. I found nothing like > "vmlinuz" at the root (it would be too easy) but after some meandering > I find the two files /boot/grub/i386-pc/core.img and > /boot/grub/i386-pc/boot.img > > linux /boot/grub/i386-pc/core.img > returns error: "invalid magic number" > > linux /boot/grub/i386-pc/boot.img > returns error: "unexpected end of file /boot/grub/i386-pc/boot.img" > > I have some questions: > - Where in the bootable partition is the boot file I should launch? > - If this boot file is core.img, how should I fix this magic number? > - If this boot file is boot.img, how do I make sure the file has been > correctly copied? > - Is the image really usable "out of the box" or does it require some > tuning? > > Thanks in advance. > > piotr > > On 09/04/2017, 良ϖ <p.de.bois...@gmail.com> wrote: >> Hi, >> >> I've followed instructions on this page: >> https://www.gnu.org/software/guix/manual/html_node/USB-Stick-Installation.html#USB-Stick-Installation >> >> everything goes smoothly and at the end I get a partition named >> "gnu-disk-image" with flag "boot". Sounds good. When I mount it it's a >> classical GNU / Linux root with folders bin, root, dev, etc, gnu, >> home, mnt, root, run, tmp and var. >> >> However when I reboot the key isn't recognised by my laptop so I'm >> unable to install it :'( >> >> Any ideas how I could solve that? >> >> Thanks in advance, >> >> piotr >> >
