When I did my first Knoppix remastering back in 2006, using chroot was in practice necessary. But returning to the kind of task a few years later, and following the methods outlined by other forum members here, I found that I didn't need it.
Chroot is important when a brand new OS version is created from scratch, for then there isn't anything to run yet. But I have found that as soon as I have a version able to run, it is much better working from that. And with easily configurable (in several parallel versions) persistent store, running the developing system in something like kvm is a very simple, robust and efficient way of applying and testing changes.
Working from Knoppix 7.6.1 (for example), I can run the ISO in kvm, use the flash installer to install Knoppix on the first partition of a USB SSD disk, and start creating alternatives by modifying the booting .cfg file there. When I then run (the external disk is identified as /dev/sdc)
I can use the booting alternatives in the syslinux file. I can even do remastering safely running from the image to be remastered, if I start without persistence. And after the first remastering, I will have all necessary tools in the cloop image, so it doesn't really matter for this use case whether I use persistence or not.Code:sudo kvm /dev/sdc -m 1024 &
Have I missed something important about chroot, as it doesn't seem to have much to offer for mye actual use?
I will need it for a knxbootstrap utility, but remastering is something quite different today.
OEM Genuine Apple MacBook Pro A1990 2018 2019 15" LCD Screen Display Assembly
$218.49
OEM A2141 Apple MacBook Pro 16" LCD Screen Display Assembly 2019 Silver Gray
$332.49
2016 2017 A1708 OEM Trackpad Apple MacBook Pro 13" Space Gray Non-Touch w/Cable
$16.99
OEM Apple MacBook Pro 13 A1706 A1708 2017 LCD Screen Display Assembly Space Gray
$147.24
Genuine Apple A1882 30W USB-C Power Adapter Apple OEM CHARGER
$18.99
Genuine OEM Apple 10w USB Wall Charger Adapter iPhone iPad with Lightning cable
$6.99
Apple OEM Original (A1374) 45W MagSafe Power Adapter with Fold Plug Only - White
$10.95
OEM 45W Charger Adapter Supply Power for Apple Macbook Air A1465 A1466 2012-2017
$8.99
APPLE OEM Power Extension Cable 6ft for Macbook, Macbook Air, Pro 2.5A 125V-NEW
$19.99
Original OEM 45W Magsafe 2 Charger for APPLE MacBook Air 13" 11" A1466 2015 2013
$7.99