doris-nb:/etc/grub.d # cat 40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
# [chris]
menuentry "tumbleweed live" –class suse –class os {
insmod ext2
#gfxpayload=$linux_gfx_mode
set root=(hd0,msdos7)
set isofile=/chris/openSUSE-Tumbleweed-KDE-Live-i686-Snapshot20220520-Media.iso
set rootdevice=/dev/sda7
set isolabel=openSUSE_Tumbleweed_KDE_Live
loopback loop $isofile
#linux (loop)/boot/ix86/loader/linux isofrom=$rootdevice:$isofile edd=off load_ramdisk=1 prompt_ramdisk=0 rw vga=normal loglevel=9 max_loop=256 vmalloc=256MiB keymap=de-l
atin1 de_DE
#linux (loop)/boot/ix86/loader/linux isofrom=$rootdevice:$isofile isofrom_device=$rootdevice isofrom_system=$isofile keymap=de-latin1 de_DE
linux (loop)/boot/ix86/loader/linux boot=isolinux iso-scan/filename=$isofile root=live:CDLABEL=$isolabel ro rd.live.image rhgb
#linux (loop)/boot/ix86/loader/linux boot=isolinux iso-scan/filename=$isofile root=$rootdevice ro rd.live.image rhgb
initrd (loop)/boot/ix86/loader/initrd