diff --git a/troubleshooting/uefi-troubleshooting.md b/troubleshooting/uefi-troubleshooting.md index 4e18e2f8..7eebc7c9 100644 --- a/troubleshooting/uefi-troubleshooting.md +++ b/troubleshooting/uefi-troubleshooting.md @@ -9,12 +9,12 @@ Troubleshooting UEFI related problems -Cannot start installation, it hangs after GRUB menu ("Test media and install Qubes OS") +Cannot start installation, hangs at four penguins after choosing "Test media and install Qubes OS" in GRUB menu --------------------- There is some [common bug in UEFI implementation](http://xen.markmail.org/message/f6lx2ab4o2fch35r), affecting mostly Lenovo systems, but probably some others too. You can try existing workaround: -1. In GRUB menu press `e`. +1. In GRUB menu[1](#f1) press `e`. 2. At the end of `chainloader` line add `/mapbs /noexitboot`. 3. Perform installation normally, but not reboot system at the end yet. 4. Go to `tty2` (Ctrl-Alt-F2). @@ -35,7 +35,7 @@ System crash/restart when booting installer Some Dell systems and probably others have [another bug in UEFI firmware](http://markmail.org/message/amw5336otwhdxi76). And there is another workaround for it: -1. In GRUB menu press `e`. +1. In GRUB menu[1](#f1) press `e`. 2. At the end of `chainloader` line add `-- efi=attr=uc`. 3. Perform installation normally, but not reboot system at the end yet. 4. Go to `tty2` (Ctrl-Alt-F2). @@ -44,3 +44,6 @@ Some Dell systems and probably others have [another bug in UEFI firmware](http:/ sed -i -e 's/^options=.*/\0 efi=attr=uc' /mnt/sysimage/boot/efi/qubes/xen.cfg 6. Now you can reboot the system by issuing `reboot` command. + +* * * +1 If you use rEFInd, you can see 3 options regarding the USB installer. Choose "Fallback Boot Loader" to enter the GRUB menu. [↩](#a1-1) [↩](#a1-2)