By making substantial use of KNOPPIX-DATA on a reiserfs formatted /dev/sda3 I have managed to customise KNOPPIX at boot pretty well as preferred.
However: one final (almost trivial) alteration eludes me.
I would like to tweak the boot init executable file which I think is the one that resides in minirt.gz.
Using a temporary ext2 filesystem as my vehicle for managing this:
1) copy minirt.gz to temp and de-compress minirt.gz using gunzip: this yields a file minirt
2) move to a dofferent subdirectory under temp and extract minirt here with the command cpio -idm < {pathto}/minirt
3) the init file is seen here: edit it - (I'm just tweaking the messages sent to screen at boot) - and save it
4) chmod a+x init and chmod a+w init, as originally found
5) wrap the while thing as a revised minirt to a different subdirectory under temp using find . | cpio -o > {newpathto}/minirt
6) compress the new minirt using gzip --recursive --rsyncable (not sure whether either switch is actiually required)
and finally
7) save the old minirt.gz as minirt.orig.gz in case of failure (see below!)
8 ) copy the new minirt.gz to replace the original.
Then reboot, hoping for success.
But actually get failure at boot with the error message:
"kernel panic - not syncing - unable to mount root fs on unknown-block(0,0)"
I feel I'm almost there at my ideal customised KNOPPIX, and without the hugely complex time-consuming and likely error-prone process of re-mastering.
Has anybody else tried this easier approach and successfully replaced minirt.gz with their own version?
Thank you for any insight or refined practice for 1-8 above .. ..
Lenovo ThinkPad E580 15.6" Laptop Intel Core i5 8GB RAM 128GB SSD Windows 11
$139.49
Lenovo ThinkPad T495s Laptop AMD Ryzen 5 PRO 3500U 16GB RAM 256GB SSD Windows 10
$249.99
Lenovo ThinkPad T480s Laptop Computer 14" Core i5 8GB RAM 128GB SSD Windows 11
$202.04
Lenovo - Legion Slim 5 16" Gaming Laptop WUXGA - Ryzen 5 7640HS with 16GB Mem...
$1349.99
Lenovo - Yoga 7 2-in-1 14" 2K Touchscreen Laptop - AMD Ryzen 5 8640HS with 8G...
$749.99
Lenovo Ideapad 1i 15.6" FHD Touch Laptop - Intel Core i3-1215U with 8GB Memor...
$499.99
Lenovo Legion Pro 5i 16" Gaming Laptop RTX 4070 8GB i9-13900HX 16GB RAM 1TB SSD
$1369.99
Lenovo Ideapad 1 14" Laptop - Celeron N4020 with 4GB Memory - Intel UHD Graph...
$139.99
Lenovo ThinkPad Yoga 11E 4TH Gen Core i5-7200 2.50GHz 8GB RAM 256 GB SATA SSD
$79.99
Lenovo ThinkPad T14 Gen1 w/Core i5-10210U CPU - 16GB RAM - 256GB SSD - Win10 Pro
$259.99