UEFI mode on a BIOS-based computer?
When I normally boot into my Windows installations, I am using legacy boot, apparently. There seems to be no option in my BIOS for UEFI-based booting (Lenovo 57CN30WW, if it helps), and considering this computer is 10 years old now, it seems normal. However, when I boot into every single Linux installer I’ve had (Ubuntu, Debian, Fedora, openSUSE, every one except Linux Mint, for some reason, it detects the computer’s firmware as UEFI. Why is this so? It is interfering with most of my distro installations.
linux bios uefi
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
add a comment |
When I normally boot into my Windows installations, I am using legacy boot, apparently. There seems to be no option in my BIOS for UEFI-based booting (Lenovo 57CN30WW, if it helps), and considering this computer is 10 years old now, it seems normal. However, when I boot into every single Linux installer I’ve had (Ubuntu, Debian, Fedora, openSUSE, every one except Linux Mint, for some reason, it detects the computer’s firmware as UEFI. Why is this so? It is interfering with most of my distro installations.
linux bios uefi
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28
add a comment |
When I normally boot into my Windows installations, I am using legacy boot, apparently. There seems to be no option in my BIOS for UEFI-based booting (Lenovo 57CN30WW, if it helps), and considering this computer is 10 years old now, it seems normal. However, when I boot into every single Linux installer I’ve had (Ubuntu, Debian, Fedora, openSUSE, every one except Linux Mint, for some reason, it detects the computer’s firmware as UEFI. Why is this so? It is interfering with most of my distro installations.
linux bios uefi
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
When I normally boot into my Windows installations, I am using legacy boot, apparently. There seems to be no option in my BIOS for UEFI-based booting (Lenovo 57CN30WW, if it helps), and considering this computer is 10 years old now, it seems normal. However, when I boot into every single Linux installer I’ve had (Ubuntu, Debian, Fedora, openSUSE, every one except Linux Mint, for some reason, it detects the computer’s firmware as UEFI. Why is this so? It is interfering with most of my distro installations.
linux bios uefi
linux bios uefi
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
asked Feb 18 at 16:23
Varun NarravulaVarun Narravula
806
806
Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28
add a comment |
Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28
Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28
add a comment |
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Back then it was quite common for the firmware to be UEFI-based but set to run with CSM (Compatibility Support Module) permanently enabled so to an OS it looked like a standard BIOS.
– fpmurphy
Feb 19 at 2:09
But then there should be a way to enable UEFI booting. For my BIOS I found a link to a DOS executable that is now nonexistent. I was thinking that this contained a new option for UEFI booting. Is there anything like that?
– Varun Narravula
Feb 19 at 2:11
Not necessarily. As I stated earlier, it was common for CSM to be permanently enabled, i.e. no way to disable CSM. Yes, you can boot from a UEFI emulator enabled USB in many cases. I wrote an article on how to do this back in 2011. See blog.fpmurphy.com/2011/01/edk2-uefi-emulator-on-fedora-14.html
– fpmurphy
Feb 21 at 0:28