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 .. ..
Samsung - S Pen Creator Edition - White
$38.00
Genuine OEM Samsung Galaxy Tab S6 Lite Book Cover -NEW EF-BP610PJEGUJ- #E4
$10.00
SAMSUNG 850 EVO 500GB 2.5" SATA SSD MZ-75E500, Grade A SKU 10171
$28.99
Samsung Galaxy Tab A9+ 11.0" 64GB Gray Wi-Fi Tablet Bundle SM-X210NZAYXAR 2023
$149.99
Samsung Galaxy Tab A9 (X110) 64GB 4GB RAM International Version (New)
$126.99
OEM SAMSUNG Keyboard FOR Galaxy Tab S8+, S7 FE, S7+ Lite w/ Large Key SIZE
$46.99
Samsung 870 EVO 2TB 2.5" SATA III Internal SSD (MZ-77E2T0B/AM)
$115.00
Samsung 24" FHD Monitor 75 hz, 4ms, IPS LED, FreeSync LF24T350FHNXZA (OPEN BOX)
$64.99
Set Of 10 Samsung (1 x 8GB) PC4-21300 So DIMM So(DDR4-2666) Memory - SET OF 10
$100.00
Samsung Galaxy Tab S9 Ultra Smart Book Cover EF-BX910PBEGUJ Black Nice Preowend
$49.99