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Bug#986387: cdrom: Unsuccessful installation on Windows10-Dell-Latitude-Ultrabook. No grub.

Package: cdrom
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

Jigdone a debian-10.9.0-amd64-xfce-CD1 USB-Stick.  Booted a Dell Latitude
Ultrabook with preinstalled Windows 10 from aforesaid USB-Stick.  Performed
full installation including resizing the NTFS partition and including
installation of grub(2).  Rebooted.  No bootable media found.
On reboot via F12 I could select Windows Boot Manager to boot successfully into
Windows10.  But Grub or Linux are not available.

Windows10 recognises the resize of the NTFS partition, the
additional partitions sda4 (root) and sda5 (swap) are recognised as well.

UEFI booting presents a "normal" Windows 10.
Legacy booting says, no bootable media found.
Booting via UEFI-->Windows Bootmanager boots Windows 10.
Legacy AND UEFI booting Installation-USB-Stick work up to the point to
register the disk(s), and there it stops, it doesn't seem to recognise the
partition table, that the installer has written and is also reported by

It just presents an unformatted disk of MAX units to go on with.  But Windows
DatentrÀgerverwaltung does indeed see the created partitions.

I'm at a loss.

-- System Information:
Debian Release: 10.0
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: i386 (x86_64)

Kernel: Linux 5.9.0-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT@euro, LC_CTYPE=de_AT@euro (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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