Difference between revisions of "Cd remastering"

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(correct from squash)
(fix module importation to be just module importation, root consoles to user consoles.)
 
(3 intermediate revisions by the same user not shown)
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Here we will remaster the gentoo minimal cd and inject a funtoo stage3 or undead usb squashfs image into it.
 
Here we will remaster the gentoo minimal cd and inject a funtoo stage3 or undead usb squashfs image into it.
 +
===setup===
 
{{console|body=
 
{{console|body=
###i## mkdir ~/livecdtmp
+
$##i## mkdir ~/livecdtmp
###i## mv gentoo-minimal.iso ~/livecdtmp
+
$##i## mv gentoo-minimal.iso ~/livecdtmp
###i## cd ~/livecdtmp
+
$##i## cd ~/livecdtmp
###i## mkdir mnt
+
$##i## mkdir mnt
###i## sudo mount -o loop gentoo-minimal.iso mnt
+
$##i## sudo mount -o loop gentoo-minimal.iso mnt
###i## mkdir extract-cd
+
$##i## mkdir extract-cd
###i## sudo rsync --exclude=/image.squashfs -a mnt/ extract-cd
+
$##i## sudo rsync --exclude=/image.squashfs -a mnt/ extract-cd
 
}}
 
}}
  
 +
===decompress===
 
*the edit directory is the uncompressed squashfs archive, and can be chrooted into if we were to go that route.
 
*the edit directory is the uncompressed squashfs archive, and can be chrooted into if we were to go that route.
  
 
{{console|body=
 
{{console|body=
###i## sudo unsquashfs mnt/image.squashfs
+
$##i## sudo unsquashfs mnt/image.squashfs
###i## sudo mv squashfs-root edit
+
$##i## sudo mv squashfs-root edit
 
}}
 
}}
  
 +
===merge===
 
*merge in our gnome stage3 with our gentoo boot disk:
 
*merge in our gnome stage3 with our gentoo boot disk:
 
{{console|body=
 
{{console|body=
###i## tar --numeric-owner --xattrs --xattrs-include='*' -xpf funtoo-gnome-stage3.tar.xz -C ~/livecdtmp/edit
+
$##i## sudo tar --numeric-owner --xattrs --xattrs-include='*' -xpf funtoo-gnome-stage3.tar.xz -C ~/livecdtmp/editfuntoo
 
}}
 
}}
  
 +
*or from a squashfs image.
 
{{console|body=
 
{{console|body=
###i## sudo mksquashfs edit extract-cd/image.squashfs
+
$##i## sudo unsquashfs -f -d ~/livecdtmp/editfuntoo /mnt/filesystem.squashfs
 
}}
 
}}
  
*or from a squashfs image.
+
===load modules===
 +
*merge the live cd's kernel modules with our stage3 root:
 +
{{console|body=
 +
$##i## sudo cp -r edit/lib/modules/5.10.27-gentoo-x86_64 editfuntoo/lib/modules/
 +
}}
 +
 
 +
===compress===
 
{{console|body=
 
{{console|body=
###i## sudo unsquashfs -f -d ~/livecdtmp/editfuntoo /mnt/filesystem.squashfs
+
$##i## sudo mksquashfs editfuntoo extract-cd/image.squashfs
###i## sudo mv editfuntoo edit
 
 
}}
 
}}
  
 +
===burn===
 
*now we are ready to cd into extract-cd & generate the iso image again:
 
*now we are ready to cd into extract-cd & generate the iso image again:
 
{{console|body=
 
{{console|body=
###i## cd extract-cd
+
$##i## cd extract-cd
###i## sudo xorrisofs -D -r -V "test" -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e '/gentoo.efimg' -no-emul-boot -isohybrid-gpt-basdat -o ../funtoo-live.iso .
+
$##i## sudo xorrisofs -D -r -V "test" -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e '/gentoo.efimg' -no-emul-boot -isohybrid-gpt-basdat -o ../funtoo-live.iso .
 +
$##i## sudo isohybrid --uefi ../funtoo-live.iso
 
}}
 
}}

Latest revision as of 21:40, June 8, 2021

Here we will remaster the gentoo minimal cd and inject a funtoo stage3 or undead usb squashfs image into it.

setup

user $ mkdir ~/livecdtmp
user $ mv gentoo-minimal.iso ~/livecdtmp
user $ cd ~/livecdtmp
user $ mkdir mnt
user $ sudo mount -o loop gentoo-minimal.iso mnt
user $ mkdir extract-cd
user $ sudo rsync --exclude=/image.squashfs -a mnt/ extract-cd

decompress

  • the edit directory is the uncompressed squashfs archive, and can be chrooted into if we were to go that route.
user $ sudo unsquashfs mnt/image.squashfs
user $ sudo mv squashfs-root edit

merge

  • merge in our gnome stage3 with our gentoo boot disk:
user $ sudo tar --numeric-owner --xattrs --xattrs-include='*' -xpf funtoo-gnome-stage3.tar.xz -C ~/livecdtmp/editfuntoo
  • or from a squashfs image.
user $ sudo unsquashfs -f -d ~/livecdtmp/editfuntoo /mnt/filesystem.squashfs

load modules

  • merge the live cd's kernel modules with our stage3 root:
user $ sudo cp -r edit/lib/modules/5.10.27-gentoo-x86_64 editfuntoo/lib/modules/

compress

user $ sudo mksquashfs editfuntoo extract-cd/image.squashfs

burn

  • now we are ready to cd into extract-cd & generate the iso image again:
user $ cd extract-cd
user $ sudo xorrisofs -D -r -V "test" -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e '/gentoo.efimg' -no-emul-boot -isohybrid-gpt-basdat -o ../funtoo-live.iso .
user $ sudo isohybrid --uefi ../funtoo-live.iso