Trying to install from ISO via grub.cfg - almost there?

Friday, 26 August 2022

People,

My old Zenbook has problems running LiveUSBs so I generally use dnf 
updates but the last update to F36 has caused problems with audio that I 
can't resolve so I want to do a clean install and have been trying to do 
this via running the iso from a grub2 config by adding stuff to 
40_custom:

#!/usr/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply 
type the
# menu entries you want to add after this comment.  Be careful not to 
change
# the 'exec tail' line above.

menuentry "Fedora 36" --class fedora --class gnu-linux --class gnu 
--class os {
         rmmod tpm
         set iso_label="Fedora-36"
         set iso_file="Fedora-KDE-Live-x86_64-36-1.5.iso"
         loopback loop (hd0,gpt5)/$iso_file  # sda5 is my home partition 
that I preserve between updates
	set root=(loop)
         linux  /images/pxeboot/vmlinuz iso-scan/filename=$iso_file 
root=live:CDLABEL=$iso_label ro rd.live.image
         initrd /images/pxeboot/initrd.img
}

This actually boots but eventually grinds to a halt with:

/run/initramfs/isoscan: unknown file system type 'swap'
dmesg may have more info . .
EXT4-fs (sda5) mounted file system with ordered data mode. Quota mode: 
none.
loop0: detected capacity change from 0 to 4325276

Then lots of:

dracut-initqueue[627]: Warning:  . . .
"
Emergency mode . .

And a suggestion to save and look at:

   /run/initramfs/rdsosreport.txt

Can anyone suggest what the problem is and how to resolve it?

Thanks,

Phil.
-- 
Philip Rhoades

PO Box 896
Cowra  NSW  2794
Australia
E-mail:  phil(a)pricom.com.au