How can I boot from a root filesystem (maybe squashfs or dd image)?

[NiKiZe]

(2017-10-01 22:42)ajr Wrote:  Here is what happens with only the kernel and boot options: https://i.imgur.com/Jhssl4q.png

I don't care about the username and fetch flags, I only included them because they were in the examples I found.

Good so the kernel boots on its own
now add initrd as well, note that I replaced module in your script with initrd, should be compatible but initrd is more clear.

Code:

#!ipxe
kernel http://10.0.0.2/ipxe/vmlinuz
initrd http://10.0.0.2/ipxe/initrd.img
imgargs vmlinuz boot=live config console=ttyS0 username=aj fetch=http://10.0.0.2/ipxe/sdc.squashfs
boot

and now reading thru it again I see why you get a "blank screen" the console part redirects all output to serial, so removing that should give you output to work with. (probably some kind of error message)

And i think all your other arguments are script specific, so depending on your initrd and it's script you might want to remove them as well, and then test them one by one.

You will need some way of getting your squashfs into your system, either via initrd, or some fetch equivalent scripting. - as such you will "have to care".

To get this working, you will have to understand, or learn all aspects of this (mostly from scratch). If you aren't prepared for that or don't want to, then I would suggest to use some other already working live distro.