On 07/02/2021 22:26, Lou Poppler wrote:
Fast startup was _not_ disabled - I thought (from install manual) only applicable to Win-8, and this machine Win-10.On Sun, 2021-02-07 at 15:14 -0700, Lou Poppler wrote:On Sun, 2021-02-07 at 20:44 +0000, Bernard McNeill wrote:[...]Trial-1. Reboot, no attempt to use F12. Boots directly into Windows.[...]See install manual https://www.debian.org/releases/stable/installmanual Also worth asking: . Is the machine booting in BIOS mode or UEFI mode, with or without "Secure Boot"? Was the machine booting in that same mode during your debian installation? . Are the "disks" involved both/all partitioned in the same schema -- i.e. GPT partitions or MBR partitions?I forgot when writing the above, but another important question is whether you have already disabled the Windows Fast Startup option in Windows 10. This is mandatory, and things will work differently depending on whether it is disabled already or not. See section 3.6.4 of the install manual.
It is disabled now.In the same spirit, found a 'Fastboot' option in BIOS: It was set to 'Minimal', it is now set to 'Thorough'.
UEFI mode, Secure Boot always set.Nothing much has changed, except that reboot now offers opportunity to skip a disk check (not taken).
I am nervous that not disabling 'Fast startup' might have messed up process from beginning - I may repeat entire installation.
+++ Are the "disks" involved both/all partitioned in the same schema -- +++ i.e. GPT partitions or MBR partitions?I have partitioned nothing on the laptop's SSD (and don't really want to - the idea of the external USB HDD for Debian was to make that drive a sandbox - no possible corruption of other work under Win-10). The external USB HDD was partitioned by the debian_installer (Guided total disk).
FWIW I sense that in some way the 'Debian' option in the boot list points to Win-10 on the SSD, rather than the Debian on the external HDD.
If it pointed to rubbish surely the machine would simply hang. Best regards