papoteur, this is your baby

Assignee: bugsquad => yves.brungard
CC: (none) => fri

From bug 34877, comment 22:

> @katnatek, are you installing onto a USB flash drive that you've previously
> used with an ISO image? If so, your problem is most likely that the is9660
> filesystem signature is still present on the drive. Try using wipefs to
> examine that drive and to remove any filesystem signatures that shouldn't be
> there.

Isodumper could do, or learn to do, that on any target devices that you use the tool for.

But your error occurred when you tried to install an already dumped iso to a USB key, previously used for a Live ISO, right? So that USB key was at that time a target of the dumped iso, but not of Isodumper. How can isodumper fix that at that time?

CC: (none) => marja11

@katnatek, did you format the target for *system installation* using Isodumper?

(In reply to Morgan Leijström from comment #3)
> @katnatek, did you format the target for *system installation* using
> Isodumper?

I use the usb to make a live USB ,after play sometime format with isodumper and then try to install
If not, perhaps I directly try to install in the usb and after the 1st fail format with isodumper

I not want to mention win2 tools but one I use did make something like this, but if I remember well with 3rd party tool and not let any trace of the previous usage in the usb.

Sorry i do not understand clearly.

(In reply to katnatek from comment #0)
> When you try to make a Classic install to usb device previously used to
> create a LiveUsb, the installation of grub could fail due the presence of
> the iso9660 filesystem

That USB device where Grub is about to install, did you format that USB using Isodumper before running the installer?

Also, are you sure you selected the correct device for configuring boot?
(I ask because i have selected wrong myself before...)

(In reply to Morgan Leijström from comment #5)
> Sorry i do not understand clearly.
> 
> (In reply to katnatek from comment #0)
> > When you try to make a Classic install to usb device previously used to
> > create a LiveUsb, the installation of grub could fail due the presence of
> > the iso9660 filesystem
> 
> That USB device where Grub is about to install, did you format that USB
> using Isodumper before running the installer?

Short answer, yes

> 
> Also, are you sure you selected the correct device for configuring boot?
> (I ask because i have selected wrong myself before...)

Short answer yes
I disconnect the hdd to avoid confusion

(In reply to katnatek from comment #6)
> (In reply to Morgan Leijström from comment #5)
> > Also, are you sure you selected the correct device for configuring boot?
> > (I ask because i have selected wrong myself before...)
> 
> Short answer yes
> I disconnect the hdd to avoid confusion

And you are sure you did not select the device from which installer is booted (where you dumped the .iso) ?

(In reply to Morgan Leijström from comment #7)
> (In reply to katnatek from comment #6)
> > (In reply to Morgan Leijström from comment #5)
> > > Also, are you sure you selected the correct device for configuring boot?
> > > (I ask because i have selected wrong myself before...)
> > 
> > Short answer yes
> > I disconnect the hdd to avoid confusion
> 
> And you are sure you did not select the device from which installer is
> booted (where you dumped the .iso) ?

Yes, after the fail I think I did that but selecting the other device end with grub in the ventoy usb and have to recreate