GNU bug report logs - #49961
Need support for booting from installation iso file directly for multiboot project

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Package: guix; Reported by: Shyam Saran <syamsaran12345@HIDDEN>; dated Mon, 9 Aug 2021 16:04:02 UTC; Maintainer for guix is bug-guix@HIDDEN.

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From: Shyam Saran <syamsaran12345@HIDDEN>
Date: Mon, 9 Aug 2021 21:32:39 +0530
Message-ID: <CABVJY8pTMHbcY+Ya4Cf_4trSq_XAE2CrW=HPbyD1oxUt3aPHTA@HIDDEN>
Subject: Need support for booting from installation iso file directly for
 multiboot project
To: bug-guix@HIDDEN
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Need support for loopback.cfg
like Ubuntu distribution to boot from ios files for
multiboot [https://github.com/eengstrom/multiboot/blob/master/grub/grub.cfg]


Here tried similar thing with installation iso and its /boot/grub/grub.cfg
in https://github.com/aguslr/multibootusb

For this
added file mbusb.d/guix-system.d/install-generic.cfg

with content

<src>
for isofile in $isopath/*/guix-system-install-*.iso
$isopath/guix-system-install-*.iso; do
  if [ -e "$isofile" ]; then
    regexp --set=isoname "$isopath/(.*)" "$isofile"
    submenu "$isoname (grub.cfg) ->" "$isofile" {
      iso_path="$2"
      export iso_path
      search --set=root --file "$iso_path"
      loopback loop "$iso_path"
      root=(loop)
      configfile /boot/grub/grub.cfg
      loopback --delete loop
    }
  fi
done

With this got grub entry like below

setparam 'Guixsd/guix-system-install-1.2.0.x86_64-linux.iso (loopbak.cfg)
->' '/boot/isos/guix-system-install-1.2.0.x86_64-linux.iso'

  iso_path="$2"
  export iso_pathj
  search --set=root --file "$iso_path"
  loopback loop "$iso_path"
  root=(loop)
  configile /boot/grub/grub.cfg
  loopback --delete loop
</src>



After booting from here, getting menu from ios's /boot/grub/grub.cfg
where --root=31393730-3031-3031-3139-343934363833

When I boot from here, getting below error


waiting for partition '31393730-3031-3031-3139-343934363833' to appear
ice-9/boot-9.scm:1669:16: In procedure raise-excepion:
failed to resolve partition "31393730-3031-3031-3139-343934363833"

and finally it shows guile scheme prompt

scheme@(guile-user)>




Thanks
--
/syam

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<div dir=3D"ltr"><div><br></div><div><br></div><div>Need support for loopba=
ck.cfg <br></div><div>like Ubuntu distribution to boot from ios files for <=
br></div><div>multiboot [<a href=3D"https://github.com/eengstrom/multiboot/=
blob/master/grub/grub.cfg">https://github.com/eengstrom/multiboot/blob/mast=
er/grub/grub.cfg</a>]</div><div><br></div><div><br></div><div>Here tried si=
milar thing with installation iso and its /boot/grub/grub.cfg</div><div>in =
<a href=3D"https://github.com/aguslr/multibootusb">https://github.com/agusl=
r/multibootusb</a></div><div><br></div><div>For this<br></div><div>added fi=
le mbusb.d/guix-system.d/install-generic.cfg</div><div><br></div><div>with =
content</div><div><br></div><div>&lt;src&gt;</div><div>for isofile in $isop=
ath/*/guix-system-install-*.iso $isopath/guix-system-install-*.iso; do<br>=
=C2=A0 if [ -e &quot;$isofile&quot; ]; then<br>=C2=A0 =C2=A0 regexp --set=
=3Disoname &quot;$isopath/(.*)&quot; &quot;$isofile&quot;<br>=C2=A0 =C2=A0 =
submenu &quot;$isoname (grub.cfg) -&gt;&quot; &quot;$isofile&quot; {<br>=C2=
=A0 =C2=A0 =C2=A0 iso_path=3D&quot;$2&quot;<br>=C2=A0 =C2=A0 =C2=A0 export =
iso_path<br>=C2=A0 =C2=A0 =C2=A0 search --set=3Droot --file &quot;$iso_path=
&quot;<br>=C2=A0 =C2=A0 =C2=A0 loopback loop &quot;$iso_path&quot;<br>=C2=
=A0 =C2=A0 =C2=A0 root=3D(loop)<br>=C2=A0 =C2=A0 =C2=A0 configfile /boot/gr=
ub/grub.cfg<br>=C2=A0 =C2=A0 =C2=A0 loopback --delete loop<br>=C2=A0 =C2=A0=
 }<br>=C2=A0 fi<br>done</div><div><br></div><div>With this got grub entry l=
ike below</div><div><br></div><div>setparam &#39;Guixsd/guix-system-install=
-1.2.0.x86_64-linux.iso (loopbak.cfg) -&gt;&#39; &#39;/boot/isos/guix-syste=
m-install-1.2.0.x86_64-linux.iso&#39;</div><div><br></div><div>=C2=A0 iso_p=
ath=3D&quot;$2&quot;</div><div>=C2=A0 export iso_pathj</div><div>=C2=A0 sea=
rch --set=3Droot --file &quot;$iso_path&quot;</div><div>=C2=A0 loopback loo=
p &quot;$iso_path&quot;</div><div>=C2=A0 root=3D(loop)</div><div>=C2=A0 con=
figile /boot/grub/grub.cfg</div><div>=C2=A0 loopback --delete loop</div><di=
v>&lt;/src&gt;</div><div><br></div><div><br></div><div><br></div><div>After=
 booting from here, getting menu from ios&#39;s /boot/grub/grub.cfg</div><d=
iv>where --root=3D31393730-3031-3031-3139-343934363833</div><div><br></div>=
<div>When I boot from here, getting below error<br></div><div><br></div><di=
v><br></div><div>waiting for partition &#39;31393730-3031-3031-3139-3439343=
63833&#39; to appear</div><div>ice-9/boot-9.scm:1669:16: In procedure raise=
-excepion:</div><div>failed to resolve partition &quot;31393730-3031-3031-3=
139-343934363833&quot;<br></div><div><br></div><div>and finally it shows gu=
ile scheme prompt</div><div><br></div><div>scheme@(guile-user)&gt;<br></div=
><div><br></div><div><br></div><div><br></div><div><br></div><div>Thanks</d=
iv><div>--</div><div>/syam</div><div><br></div><div><br></div><div><br></di=
v><div><br></div><div><br></div><div><br></div><div><br></div><div><br></di=
v><div><br></div><div><br></div><div><br></div></div>

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Acknowledgement sent to Shyam Saran <syamsaran12345@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#49961; Package guix. Full text available.
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Last modified: Mon, 9 Aug 2021 16:15:01 UTC

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