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Install LiveCD Partition

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1912 / 1 Year ago, sun, november 27, 2022, 11:33:30

Ubuntu has a LiveCD version that is able to boot alongside the regular installation and is useful for tasks like repartitioning the system drive.

I am able to put the LiveCD onto a CD/DVD or USB media.

How can I put the LiveCD onto an internal hard drive such that it is installed alongside the main installation? I would imagine that it would be useful for performing such maintenance tasks as well as if I want to test software without persisting changes.

Note that from the installed LiveCD partition, I'd expect that it runs just as if I had booted it off a CD/DVD/USB in that it loads up a live environment and stores changes in memory without touching disks until I manually mount them.

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scrubuz

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3 Years ago

answered 1 Year ago ledeball · Accepted Answer

Grub-n-ISO

You can boot from an iso file via grub in your installed system. It is possible to configure it in the file /etc/grub.d/40_custom and make it active by running

sudo update-grub

which copies its menuentry to /boot/grub/grub.cfg.

This is described in detail via the following links and links from them,

help.ubuntu.com/community/Grub2/ISOBoot

help.ubuntu.com/community/Grub2/ISOBoot/Examples with content to add to the file /etc/grub.d/40_custom

Modified example (updated to Xenial alias 16.04.1 LTS). Use the actual path and name to the iso file and the actual partition in the loopback command.

menuentry 'Ubuntu Xenial alias 16.04.1 LTS' {

 set isofile="/iso/ubuntu-16.04.1-desktop-amd64.iso"

 loopback loop (hd0,5)$isofile

 linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noprompt noeject

 initrd (loop)/casper/initrd.lz

}

www.howtogeek.com/196933/how-to-boot-linux-iso-images-directly-from-your-hard-drive with detailed tips

wiki.archlinux.org/index.php/Multiboot_USB_drive with more examples and links

help.ubuntu.com/community/Installation/FromUSBStick#Chainloading how to use the file /etc/grub.d/40_custom