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Old 05-17-2020, 03:38 PM   #1
bong.mau
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Debian 9.12 installation in a UEFI laptop


Hi
Env.
Hw pc hp 650 with UEFI bios
Sw Windows 8
Planning to dula both Debian 9.12 & Windows 8
I read debian installation instruction about dual boot on uefi machines....sincerely i still do not have a clear picture about how to proceed...
In the past i installed many linux with MBR dual boot on normal Bios...but about UEFI i need support by people with real experience ...
My Bios permits to switch to CSM mode ...
I take a backup of Widows 8 partition with "system-rescue-cd & partimage"
with windows diskmngm i take a look of the disk
is a puzzle !!
partition1 400 mb "restore partition"
partition2 260 mb "system partition EFI
partition3 disk C ntfs "windows partition"
partition4 452 mb "restore partition"
partition5 disk D ntfs where is stored the "restore to factory" file ....
i have no problem creating and resizing partitions and installing ...My doubts are about UEFI...
How to set bios to perform debian installation and dual boot ?
I do not want to have a pc no more bootable ...
thanks in advance
Maurizio
 
Old 05-18-2020, 08:22 AM   #2
colorpurple21859
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This is the difference

disable fast boot, secure boot, and csm in bios
disable fast boot in windows advance power settings
shrink windows with windows disk management to make room for Linux.
efi partition needs to be mounted at /boot/efi if setting up partitions manually
Depending on bios/firmware may have to go into bios after installing and change Linux bootloader as the default.

Last edited by colorpurple21859; 05-18-2020 at 08:25 AM.
 
Old 05-18-2020, 09:12 AM   #3
jamison20000e
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Found this: https://www.howtogeek.com/116569/htg...ans-for-linux/
...searching: "will Debain work with secure boot?"

My last laptop I just switch to legacy mode in the bios.

Edit: thanks to Colorpurple21859 I think I do recall having a change settings in microcoughed-losedowz$10 as well (uninstalled since then.)

Last edited by jamison20000e; 05-20-2020 at 12:41 PM.
 
Old 05-20-2020, 11:13 AM   #4
bong.mau
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Hi colorpurple2185

thanks for your answer

i already created space for debian intallation ...
i switch bios to disable secure boot and i was able to load gparted live
i backup the EFI partition
usually i install linux partitioning manually...
i put attention to your post

"efi partition needs to be mounted at /boot/efi if setting up partitions manually"

what does mean ?
i have to switch to TTY and issue
mount -t vfat /dev/sdax /boot/efi
or simply specify
/boot/efi with partitioning dialog windows ?

Please clarify
thanks in advance
Maurizio
 
Old 05-20-2020, 12:10 PM   #5
colorpurple21859
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Quote:
what does mean ?
i have to switch to TTY and issue
mount -t vfat /dev/sdax /boot/efi
or simply specify
/boot/efi with partitioning dialog windows ?
No, in the Debian manual partition mode select the efi partition and set the mount point to /boot/efi and leave the check-box to format unchecked.
Similar to as if your /home was on a separate partition.
 
  


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