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Codito ergo sum
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PostPosted: Tue Aug 27, 2019 7:12 am    Post subject: Is my system using UEFI? Reply with quote

I'm installing Gentoo Linux & I don't know if my system uses UEFI or BIOS. `ls /sys/firmware' on live cd shows no UEFI file/directory(even after mounting my boot partition) so I conclude that it's not using UEFI but on the other hand, while partitioning, after running `set 2 boot' on esp flag appears under my boot section in parted. So I'm confused which way should I go BIOS or UEFI?

Last edited by Codito ergo sum on Tue Aug 27, 2019 7:59 am; edited 1 time in total
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xaviermiller
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PostPosted: Tue Aug 27, 2019 7:17 am    Post subject: Reply with quote

Hi,

What is your system? Which brand, model?
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Codito ergo sum
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PostPosted: Tue Aug 27, 2019 7:21 am    Post subject: Reply with quote

xaviermiller wrote:
Hi,

What is your system? Which brand, model?


HP-15-BS151NIA-3XY28EA
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xaviermiller
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PostPosted: Tue Aug 27, 2019 7:28 am    Post subject: Reply with quote

Actual computers are supporting UEFI. Did you boot on Legacy or UEFI mode ?

If you boot on BIOS/Legacy mode, the UEFI will not be accessible.
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rpruen
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PostPosted: Tue Aug 27, 2019 7:33 am    Post subject: Reply with quote

Sounds like you are using legacy boot. What does your BIOS have to say about the matter? Generally there will be some info regarding UEFI operating systems, boot order etc.

You would have a FAT32 partition usually labled 'EFI System Partition' on the disk, if using UEFI.

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Richard
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Codito ergo sum
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PostPosted: Tue Aug 27, 2019 7:40 am    Post subject: Reply with quote

xaviermiller wrote:
Actual computers are supporting UEFI. Did you boot on Legacy or UEFI mode ?

If you boot on BIOS/Legacy mode, the UEFI will not be accessible.


sorry I don't know in which mode I've booted. All I know is that esp is written under the table in parted in my boot partition. Besides the output of `dmesg' shows some info about efi like:

efi: EFI v2.40 by INSIDE Corp.
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NeddySeagoon
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PostPosted: Tue Aug 27, 2019 8:02 am    Post subject: Reply with quote

Codito ergo sum,

You have efi from your dmesg.
Most EFI capable systems cam boot in legacy mode or EFI mode.

The newer Gentoo live cd supports both. With a 500GB HDD it wont matter which you use.
Mixing BIOS booting and GPT partition tables can be difficult.

Either use BIOS and a MSDOS partition table or UEFI and a GPT partition table.
To install in UEFI mode, you must use a UEFI capable boot media.
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Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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petr2008
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PostPosted: Tue Aug 27, 2019 9:56 am    Post subject: Reply with quote

I am struggling with similar problem on dell notebook.
It boots without uefi only from external usb disk.
Without firmware, hardware does not work properly.
My conclusion is, that on new hardware uefi is necessary.
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krinn
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PostPosted: Tue Aug 27, 2019 4:12 pm    Post subject: Reply with quote

NeddySeagoon wrote:
Either use BIOS and a MSDOS partition table or UEFI and a GPT partition table.

Or BIOS and GPT ;)
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NeddySeagoon
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PostPosted: Tue Aug 27, 2019 4:52 pm    Post subject: Reply with quote

krinn,

That's getting harder ...
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NeddySeagoon

Computer users fall into two groups:-
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