-
Senior Member
registered user
Knoppix 8.3 read-only under kvm: A feature and a bug
For several years I have run both the Knoppix ISO-image and disk-based versions under kvm for installs, maintenance etc. The basic method works for 8.3 too, but only as far as the first flash install.
Klaus K has made Knoppix more "fool-proof" to run under kvm by restricting it to read-only mode. For many users, that is clearly a feature: You may run your ordinary Knoppix install under kvm so it functions as both host and guest at once, but if persistent store is involved, and the host and the guest instances perform different updates to that, then what?
It is only a question of time until the file system is corrupted - it is easy to imagine that prof. Knopper has introduced this restriction from experiences with broken systems.
The bug is that it doesn't stop there. If you run different copies of Knoppix on different partitions, or run Knoppix under another OS variety, even another version of Knoppix, the only thing to be careful about is that the partition where the persistent store of the VM resides is not writable by other OS'es. But don't try to explain that to Knoppix 8.3. It only checks whether it is run under kvm, and in that case, the system is mounted read-only. Which kind of blocks many important uses of Knoppix images.
While the default behaviour is "correct", there must be a cheatcode for disabling it, e.g. VIRTWRITE. I guess specialists on minirt.gz should not have too much problems rolling their own, but this is a general issue, so for me it belongs in Knopper-land proper.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
![Dell OptiPlex 3060 MICRO DESKTOP PC COMPUTER I5 8TH GEN UP TO 32GB UP TO 2TB M.2 picture](/store/img/g/2mYAAOSwmulmdXzA/s-l225/Dell-OptiPlex-3060-MICRO-DESKTOP-PC-COMPUTER-I5-8T.jpg)
Dell OptiPlex 3060 MICRO DESKTOP PC COMPUTER I5 8TH GEN UP TO 32GB UP TO 2TB M.2
$295.00
![Dell 14](/store/img/g/6CgAAOSw80lltRSe/s-l225/Dell-14-TOUCHSCREN-Laptop-8th-Gen-Core-i5-16GB-RAM.jpg)
Dell 14" TOUCHSCREN Laptop 8th Gen Core i5 16GB RAM 512GB SSD/256 Bluetooth W11
$199.00
![Dell 15.6](/store/img/g/9x4AAOSwVAlmICu5/s-l225/Dell-15-6-NVIDIA-Gaming-Laptop-Intel-Quad-Core-i7-.jpg)
Dell 15.6" NVIDIA Gaming Laptop - Intel Quad Core i7 64GB RAM 2TB SSD Windows 11
$446.00
![New HP 24](/store/img/g/TWcAAOSw2QlmXTVp/s-l225/New-HP-24-All-In-One-Desktop-Computer-11th-Gen-i3-.jpg)
New HP 24" All In One Desktop Computer 11th Gen i3 Up To 32GB RAM 2TB SSD Win 11
$409.99
![Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor picture](/store/img/g/rfsAAOSwEFBma4Yr/s-l225/Intel-Xeon-E5-2667-V2-LGA-2011-3-3GHz-8-Core-130W-.jpg)
Intel Xeon E5-2667 V2 LGA 2011 3.3GHz 8 Core 130W 25MB 8GT/s CPU Processor
$14.99
![AMD Ryzen 7 5800X3D Processor (3.4GHz, 8 Cores, AM4) - 100-100000651WOF picture](/store/img/g/gVAAAOSwrltmdgVo/s-l225/AMD-Ryzen-7-5800X3D-Processor-3-4GHz-8-Cores-AM4-1.jpg)
AMD Ryzen 7 5800X3D Processor (3.4GHz, 8 Cores, AM4) - 100-100000651WOF
$259.99
![AMD Ryzen 7 7800X3D 8-Core - 16-Thread 4.2 GHz (5.0 GHz Max Boost) Socket A... picture](/store/img/g/3isAAOSw~lNmI3aE/s-l225/AMD-Ryzen-7-7800X3D-8-Core-16-Thread-4-2-GHz-5-0-G.jpg)
AMD Ryzen 7 7800X3D 8-Core - 16-Thread 4.2 GHz (5.0 GHz Max Boost) Socket A...
$304.95
![Dell Inspiron 142-in-1 Touch Laptop Intel Core 5 Processor 8GB Memory... picture](/store/img/g/sSgAAOSwm3JmUI62/s-l225/Dell-Inspiron-142-in-1-Touch-Laptop-Intel-Core-5-P.jpg)
Dell Inspiron 142-in-1 Touch Laptop Intel Core 5 Processor 8GB Memory...
$549.99
![Lenovo IdeaCentre 3 27IAP7 27](/store/img/g/hLcAAOSwwKNlQk~j/s-l225/Lenovo-IdeaCentre-3-27IAP7-27-Touch-AIO-Intel-Core.jpg)
Lenovo IdeaCentre 3 27IAP7 27" Touch AIO Intel Core i5-13420H 8GB 512GB SSD W11H
$369.99
![HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram 2x 256GB SSD Quadro 2000 Linux GA picture](/store/img/g/rIQAAOSwN9Nlnw4a/s-l225/HP-Workstation-Z640-2x-Xeon-E5-2623V4-32GB-Ram-2x-.jpg)
HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram 2x 256GB SSD Quadro 2000 Linux GA
$249.99