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dCore Boot and Installation from GRUB2

A brief dCore installation and boot example from an existing Linux install using GRUB2. No need to burn a CD/DVD or get a USB stick. Simply download the base file system and kernel into the boot directory of your choice. A small seperate boot partition may be preferred (<100mb) but not necessary. Boot the existing Linux install where GRUB2 resides and modify the boot configuration.

This example boots dCore-jessie (vmlinuz-jessie, dCore-jessie.gz) from the root directory of hd1,1 (sdb1) and the tce (extension) directory is located in sdb4:

  • Download and copy dCore-jessie.gz and vmlinuz-jessie to /mnt/sdb1/dCore/boot.
  • Edit /etc/grub.d/40_custom, determine desired tce partition, add required boot codes and modify as needed.
        menuentry "dCore" {
            set root=(hd1,1)
            linux /dCore/boot/vmlinuz-jessie nozswap showapps tce=sdb4 desktop=fluxbox
            initrd /dCore/boot/dCore-jessie.gz
        }

If needed, take a look at the naming convention used by Grub2 for numbering drives and partitions. In short, drives are numbered from zero onward whereas partitions are numbered from one onward (and not from zero as was the case in previous versions of GRUB). Furthermore, the partition numbers for extended partitions are counted from five onward, regardless of the actual number of primary partitions on your hard disk. Finally, partitions on a GPT-partionied disk are labeled with “gpt” in front of the partition number.

  • Run sudo update-grub.
  • Reboot and select dCore from the GRUB2 menu.
  • This boots to CLI, install X.org and Fluxbox/Window Manager
  • Reboot and enjoy!

Additional resources:

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