Couldn't boot Ubuntu18.04 on a dell laptop: [firmware bug] ACPI region does not cover entire command/response...











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emergency mode seems like this:
Couldn't get size:0x80000...e
Firmware bug : ACPI...buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80



I' used apt upgrade and it automatically update my kernel to 4.15.0-42-generic, then I got this problem, but when I chose my older kernel 4.15.0-29-generic I still got this, pls tell me what should I do?
plus my bios is set to UEFI, whether the security boot is on or off, it's no use.






18.04







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  • 1




    I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
    – Chris L
    Nov 27 at 2:40

















up vote
0
down vote

favorite












emergency mode seems like this:
Couldn't get size:0x80000...e
Firmware bug : ACPI...buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80



I' used apt upgrade and it automatically update my kernel to 4.15.0-42-generic, then I got this problem, but when I chose my older kernel 4.15.0-29-generic I still got this, pls tell me what should I do?
plus my bios is set to UEFI, whether the security boot is on or off, it's no use.






18.04







share|improve this question


















  • 1




    I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
    – Chris L
    Nov 27 at 2:40















up vote
0
down vote

favorite









up vote
0
down vote

favorite











emergency mode seems like this:
Couldn't get size:0x80000...e
Firmware bug : ACPI...buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80



I' used apt upgrade and it automatically update my kernel to 4.15.0-42-generic, then I got this problem, but when I chose my older kernel 4.15.0-29-generic I still got this, pls tell me what should I do?
plus my bios is set to UEFI, whether the security boot is on or off, it's no use.






18.04







share|improve this question













emergency mode seems like this:
Couldn't get size:0x80000...e
Firmware bug : ACPI...buffer. [mem 0xfed40000-0xfed4087f flags 0x201] vs fed40080 f80



I' used apt upgrade and it automatically update my kernel to 4.15.0-42-generic, then I got this problem, but when I chose my older kernel 4.15.0-29-generic I still got this, pls tell me what should I do?
plus my bios is set to UEFI, whether the security boot is on or off, it's no use.






18.04




18.04






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asked Nov 27 at 1:27









Chris L

1




1








  • 1




    I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
    – Chris L
    Nov 27 at 2:40
















  • 1




    I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
    – Chris L
    Nov 27 at 2:40










1




1




I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
– Chris L
Nov 27 at 2:40






I also have widows10 installed on my laptop, and this bug happened after I swith from widows.
– Chris L
Nov 27 at 2:40

















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