How to Make a Bootable Flash Drive using ISObooter

[rcrsn51]

Just to be clear, your situation is not the "fault" of ISObooter. Its ONLY job is to build a menu.lst file that Grub4Dos will use when the USB boots.

What happens after that is the responsibility of Grub4DOS and the stuff inside the ISO.

It's the same situation as booting off a CD. Some Puppies will give higher priority to SFS files found on the hard drive over those on the CD.

If your ISObooter menu contains "pmedia=cd", try changing it to "pmedia=usbflash".

[proebler]

Understood.
I do not consider it to be a "fault" of ISObooter.
Thanks for the tip about changing the pmedia parameter.

[EBored]

where is plik ?

[Semme]

Morning Bill,

A little help if you would please.. I'm trying to set up the latest Peppermint with persistence.

The section here is the standard ISObooter method and goes off without a hitch:

Code: Select all

title Peppermint-10-20191210-amd64
partnew (hd0,3) 0x00 (hd0,0)/Peppermint-10-20191210-amd64.iso
map --heads=0 --sectors-per-track=0 (hd0,0)/Peppermint-10-20191210-amd64.iso (0xff)
map --hook
root (0xff)
chainloader (0xff)

This, one of which I've tried doesn't quite fly (code block wrapped beginning with the "noeject" bit so as not to explode our page):

Code: Select all

title Peppermint-10-20191210-amd64
find --set-root /Peppermint-10-20191210-amd64.iso
map --heads=255 --sectors-per-track=63 /Peppermint-10-20191210-amd64.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz boot=casper iso-scan/filename=(hd0,0)/Peppermint-10-20191210-amd64.iso 
noeject noprompt splash persistent --
initrd /casper/initrd.lz

It hangs on:

Code: Select all

(initramfs) /scripts/casper-premount/20iso_scan:
line 46: Can't open /dev/sr0: No medium found

Advice? Or is there something I could dig out with ISOMaster?

Because I'm unsure as to how big "casper-rw" should be, here's how I've got the stick partitioned...

[rcrsn51]

A lot has changed since the early days of ISObooter. It's been years since I even attempted to set up a big-boy Linux with persistence.

Your best bet now is GRUB2 with a boot entry like this:

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menuentry "linuxmint-19.1-xfce-64bit" {
	set isopath="/linuxmint-19.1-xfce-64bit.iso"
	set uuid="7a177726-a6b6-4ef6-a717-98e2e8142080"
	search --no-floppy --fs-uuid --set=root $uuid
	loopback loop $isopath
	linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isopath noeject noprompt splash --
	initrd (loop)/casper/initrd.lz
}

I recently wrote a how-to for putting GRUB2 on a flash drive. It may still be posted somewhere in the Starter Kit threads.

[fredx181]

Hi Semme, this should work (it does for me)

Code: Select all

title Peppermint-10-20191210-amd64
find --set-root /Peppermint-10-20191210-amd64.iso
map --heads=255 --sectors-per-track=63 /Peppermint-10-20191210-amd64.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz boot=casper findiso=/Peppermint-10-20191210-amd64.iso --ignore-floppies cdrom-detect/try-usb=true noeject noprompt persistent --
initrd /casper/initrd.lz

Not sure if it's the change findiso= or the addition "cdrom-detect/try-usb=true" that does it, I think the last.

Fred

[Semme]

Thank you, Bill.

Because I was already set with a grldr, I went with Fred's suggestion. Your post I'll keep neatly tucked away for the time being.

Yes, Fred - thank you. I tried your stanza. First without your "cdrom-detect/try-usb=true" line, then with. With it seemed a bit faster though I didn't have either on the clock.

Both dumped oodles of code as well, preferred over Peps progress bar. All good.

This was nothing more than a POC exercise. I'll add, persistence flies!

Now (hand-rubbing-smiley), onto the Buster Starter Kit!