Debian 9 and UEFI
I have installed Debian Stretch (9.6) on UEFI-based platform
Everything went fine, but I cannot... boot to the system.
After the GRUB2 starts the image all I get is:
Loading Linux 4.9.0-8-amd64
Loading initial ramdisk ...
and it freezes...
Once I go to UEFI and enable CSM (The Compatibility Support Module) it is possible to boot to the Debian.
However I don't want this CSM enabled (it adds startup overhead).
What is the actual cause of system not booting without CSM?
I'm guessing it is the distro and the only thing is to try testing / sid ?
Do I have some other options to boot Debian 9.6 without CSM (legacy)?
debian uefi
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
asked 2 hours ago
lakier
1436
add a comment |
I have installed Debian Stretch (9.6) on UEFI-based platform
Everything went fine, but I cannot... boot to the system.
After the GRUB2 starts the image all I get is:
Loading Linux 4.9.0-8-amd64
Loading initial ramdisk ...
and it freezes...
Once I go to UEFI and enable CSM (The Compatibility Support Module) it is possible to boot to the Debian.
However I don't want this CSM enabled (it adds startup overhead).
What is the actual cause of system not booting without CSM?
I'm guessing it is the distro and the only thing is to try testing / sid ?
Do I have some other options to boot Debian 9.6 without CSM (legacy)?
debian uefi
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
asked 2 hours ago
lakier
1436
The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago
add a comment |
I have installed Debian Stretch (9.6) on UEFI-based platform
Everything went fine, but I cannot... boot to the system.
After the GRUB2 starts the image all I get is:
Loading Linux 4.9.0-8-amd64
Loading initial ramdisk ...
and it freezes...
Once I go to UEFI and enable CSM (The Compatibility Support Module) it is possible to boot to the Debian.
However I don't want this CSM enabled (it adds startup overhead).
What is the actual cause of system not booting without CSM?
I'm guessing it is the distro and the only thing is to try testing / sid ?
Do I have some other options to boot Debian 9.6 without CSM (legacy)?
debian uefi
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
asked 2 hours ago
lakier
1436
I have installed Debian Stretch (9.6) on UEFI-based platform
Everything went fine, but I cannot... boot to the system.
After the GRUB2 starts the image all I get is:
Loading Linux 4.9.0-8-amd64
Loading initial ramdisk ...
and it freezes...
Once I go to UEFI and enable CSM (The Compatibility Support Module) it is possible to boot to the Debian.
However I don't want this CSM enabled (it adds startup overhead).
What is the actual cause of system not booting without CSM?
I'm guessing it is the distro and the only thing is to try testing / sid ?
Do I have some other options to boot Debian 9.6 without CSM (legacy)?
debian uefi
debian uefi
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
asked 2 hours ago
lakier
1436
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
asked 2 hours ago
lakier
1436
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
edited 1 hour ago
Rui F Ribeiro
39.2k1479130
39.2k1479130
asked 2 hours ago
lakier
1436
asked 2 hours ago
lakier
1436
asked 2 hours ago
lakier
1436
1436
The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago
add a comment |
The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago
The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago
The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago
add a comment |
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The CSM fundamentally changes how the firmware presents itself to the operating system, effectively emulating an old BIOS. The UEFI requires a different bootloader, and also a special EFI System Partition (ESP). For what you will need to do, see blog.getreu.net/projects/legacy-to-uefi-boot
– Johan Myréen
3 mins ago