Improve booting of T2SDE live ISOs

[foxdrodd]

T2SDE changed the boot process vastly with new release 26.3 Desktop Edition as it ships as a live image now. So the injection hooks need to be customized. The disk_hook.sh is noted twice to keep compatibility with the older ISO releases.

As tested with the image:
https://dl.t2sde.org/binary/2026/t2-26.3-x86-64-desktop.iso

[AndersonTorres]

Please, I need this for my next T480!

[ventoy]

    if [ -e /etc/initrd-release ]; then
        if $GREP -q -m1 't2sde' /etc/initrd-release; then

Does this condition match both old release and new release ?

[foxdrodd]

    if [ -e /etc/initrd-release ]; then
        if $GREP -q -m1 't2sde' /etc/initrd-release; then

Does this condition match both old release and new release ?

yes, the file is present in old and new releases.

• old 25.1 - boots to text mode installer
• new 26.3 - boots to live desktop