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 Forum index » House Training » HOWTO ( Solutions )
How to Make a Bootable Flash Drive using ISObooter
Moderators: Flash, Ian, JohnMurga
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rcrsn51


Joined: 05 Sep 2006
Posts: 13129
Location: Stratford, Ontario
PostPosted: Thu 23 Apr 2020, 08:19    Post subject:  
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".
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proebler

Joined: 24 Jan 2012
Posts: 178
Location: TAS
PostPosted: Thu 23 Apr 2020, 08:57    Post subject:  
Understood.
I do not consider it to be a "fault" of ISObooter.
Thanks for the tip about changing the pmedia parameter.
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EBored

Joined: 28 Apr 2020
Posts: 34
PostPosted: Wed 29 Apr 2020, 21:41    Post subject:  
where is plik ?
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Semme


Joined: 07 Aug 2011
Posts: 8427
Location: World_Hub
PostPosted: Fri 19 Jun 2020, 11:53    Post subject:  
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:
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:
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:
(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...
isoboo_pep-1.jpg
 Description   
 Filesize   79.21 KB
 Viewed   165 Time(s)

isoboo_pep-1.jpg

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rcrsn51


Joined: 05 Sep 2006
Posts: 13129
Location: Stratford, Ontario
PostPosted: Fri 19 Jun 2020, 13:28    Post subject:  
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:
Code:
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.
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fredx181


Joined: 11 Dec 2013
Posts: 4479
Location: holland
PostPosted: Fri 19 Jun 2020, 16:26    Post subject:  
Hi Semme, this should work (it does for me)
Code:
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
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Semme


Joined: 07 Aug 2011
Posts: 8427
Location: World_Hub
PostPosted: Fri 19 Jun 2020, 17:12    Post subject:    
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! Cool

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