I installed ubuntu next to windows 8 (I’m picking up ubuntu for the first time). I split a 100 gigabyte piece from the C drive, made 2 partitions for 16 GB under the swap and 84 GB for the system. That's how it all looks like:
/dev/mapper/isw_chdaeggdih_RAID0IMSVolume1 2048 1230847 1228800 600M Windows /dev/mapper/isw_chdaeggdih_RAID0IMSVolume2 1230848 1845247 614400 300M EFI Syst /dev/mapper/isw_chdaeggdih_RAID0IMSVolume3 1845248 2107391 262144 128M Microsof /dev/mapper/isw_chdaeggdih_RAID0IMSVolume4 2107392 290406399 288299008 137,5G Microsof /dev/mapper/isw_chdaeggdih_RAID0IMSVolume5 290406400 323960831 33554432 16G Linux св /dev/mapper/isw_chdaeggdih_RAID0IMSVolume6 323960832 500121599 176160768 84G Linux fi Initially, grub did not show at all, then with the help of the Grub Customizer program I configured it to appear in a forced way, but there is no Windows item in it. What to do, tell me.
PS If you need additional information - write, I will immediately provide.
UPD: in /boot/grub/list.cfg there is not a word about windows .. How and in what format do you need to add a new item with Windows? Maybe there are programs that simplify this action?