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.
Dell PowerEdge FX2s CTO Blade 4 Slot 2U Chassis 2x 2000W
$399.00
Dell PowerEdge FX2S FC830 Blade Server Chassis Enclosure 2*2000W PSU NO BLADES
$299.99
Dell PowerEdge M620 Blade Server 2 x Xeon e5 2665 8 x 16 GB(128) RAM - No HD
$44.99
HP ProLiant BL460c Gen8 G8 Blade Server 2x Intel Xeon 10-Core E5-2670v2 NO RAM
$40.00
Dell PowerEdge M620 Blade Server 2x 10C E5-2690v2 64GB Ram 2x 600GB 10k HDD
$125.00
DELL PowerEdge M520 Blade Server, 2x Intel Xeon E5-2407V2, 64GB RAM - "B"
$89.99
Dell PowerEdge M620 Blade Server
$39.99
HP ProLiant BL460c G8(Gen8) E5-2620 2.0GHz 256GB RAM
$50.00
HP ProLiant BL460c Gen9 Blade 2x E5-2690v4 2.6GHz =28 Cores 32GB P246 650FLB
$219.00
HP ProLiant BL460c Gen9 Blade 2x E5-2667v4 3.2GHz =16 Cores 32GB P246 650FLB
$199.00