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.
N85XX DELL 3.84TB SAS 12GB/S ENTERPRISE SOLID STATE DRIVE (W/ 14TH GEN CADDY)
$389.95
Western Digital 1TB WD Blue SA510 SATA SSD Internal 2.5”/7mm Cased - WDS100T3B0A
$89.99
Western Digital 250GB WD Blue SA510 SATA SSD, Internal M.2 2280 - WDS250G3B0B
$39.99
WD 500GB My Passport SSD, Portable External Solid State Drive WDBAGF5000ARD-WESN
$59.99
Patriot P210 128GB 256GB 512GB 1TB 2TB 2.5" SATA 3 6GB/s Internal SSD PC/MAC Lot
$14.99
Netac 1TB 2TB 512GB Internal SSD 2.5'' SATA III 6Gb/s Solid State Drive lot
$13.99
1TB SSD Portable External Hard Disk USB 3.1 Type-C
$20.00
Fanxiang SSD 512GB 1TB 2TB 4TB 2.5'' SSD SATA III Internal Solid State Drive lot
$13.99
M.2 NVMe SSD 128GB 256GB 512GB Single Notch with Windows Installed 10 / 11
$85.25
Fanxiang SSD 512GB 1TB 2TB 4TB 2.5''SATA III Internal Solid State Hard Drive LOT
$188.99