AntiX 17 live not working after editing files from iso

[Member boogi]

Hi guys,

I’m using an AntiX live in a VirtualBox. I have downloaded it from an official page (antiX-17_386-full), mount it in a VirtualBox and everything works but I want to customize it for myself (screen resolution, language etc.). So I’ve unpacked all files, edited what I needed and save everything as *.iso again. After mounting my new custom iso in virtualbox I obtained an error:

>Fatal Could not read from Boot Medium! System Halted!

My first thought: Do I edit wrong files? Or maybe my editor (notepad) change some files encoding? MD5 checksums has been changed?
There can be really many reasons so I just unpacked original iso one more time, and save these unpacked files as iso again (without any changes!). After mounting this “new-but-not-edited” iso, error “Fatal Could not read from Boot Medium! System Halted!” still appear.

So, my question is: how can I edit files from iso? Or, rather: how can I save edited files as iso?

Thanks for any help and tips!

[Member fatmac]

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This may be a case of the iso file you created not be an isohybrid.
Try running isohybrid against your new iso file.
That might fix it. 🙂

(Long time since I remastered, so I may be wrong. 😉 )

Linux (& BSD) since 1999

[Anonymous]

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how can I edit files from antiX (presumably) iso? Or, rather: how can I save edited files as iso?

It is much easier to just BOOT the iso, then from within the running session…
edit any files in the live filesystem and/or add/purge packages… and run /usr/bin/isosnapshot

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======= ignore what follows (or recognize it as an earlier, rambling, draft =========

Top search result, when I queried “virtualbox iso Fatal Could not read from Boot Medium! System Halted!”
was a video. Check out at 0:26 in the video

Please read about antiX remastering. Manually unpacking/editing/repacking the antiX iso is probably unnecessary nowadays.

v—- hyperlink
antiX docs :: Remastering

The primary purpose of live remastering is to make it as safe, easy, and convenient as possible for users to make their own customized version of antiX. The idea is that you use a LiveUSB or a LiveHD (a frugal install to a hard drive partition) as the development and testing environment. Add or subtract packages and then when you are ready to remaster, use use a simple remaster script or GUI to do the remaster and then reboot. If something goes horribly wrong, simply reboot again with the rollback option and you will boot into the previous environment.

edit:
antiX snapshot (aka iso-snapshot) may be the more appropriate tool for your immediate goal.

The primary purpose of Snapshot is to make it as safe, easy, and convenient as possible for users to make a live bootable iso of their own installed version of antiX. The idea is that you when you are ready to take a snapshot for whatever reason, just use use the iso-snapshot application and once it is finished, you will have an iso file ready for booting.

Menu → Applications → System Tools → iso-snapshot

Hopefully others will chime in to post additional doc/reference links.
I found video: “antixsnapshot – Turn your customized install into an installable ISO!”
and antiX/MX wiki :: Save system to ISO (Snapshot)

another video: “Make a snapshot of an installed system”
(intended for MX Linux audience, demoed on MX… but same tool is available in antiX)

an excerpt from antixlinux.com homepage link, titled “ReadMore”

Live Remaster and snapshot
The live remaster feature provides a slightly more permanent way of saving changes to a live-usb. It creates a new compressed linuxfs file system which contains all of your changes. Typically, someone would use root persistence to store changes on every boot and then after a big upgrade, use live remaster to compress all of those changes into the linuxfs file, letting root persistence start over with a clean slate.

You can now use the live-kernel-updater tool to change which kernel the live systems boots with. You need to first install the new kernel and do a remaster.

The snapshot tool works like remaster but it creates an iso file. Unlike remaster, it can also be run on an installed system. Using the live remaster tool is sort of like combining snapshot and live-usb-maker in one step without having to bother creating an intermediary iso file.

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