Iḿ trying to install Lubuntu 22.04 (fresh install) alongside with W10 but Lubuntu installer doesn´t detect W10 partition.
My desktop computer specifications are:
-Model: Acer extensa
-Intel core I5-4460 cpu 3.20 Ghz
-4 gb ram
-Hard disk: Ata 1 Tb (Seagate)
-Bios: Legacy (no UEFI)
On this computer I have installed previously successfully in dual boot:
Lubuntu 18.04 + W10 with no problem.
Lubuntu 20.04 + W10 with no problem.
Now, Iḿ trying to update from Lubuntu 20.04 + W10 (dual boot) to Lubuntu 22.04 + W10 (dual boot).
I have done the same steps as previous installations (first I tried keeping the same partitions as I have with Lubuntu 20.04+W10 and It failed (no GRUB menu) so I have tried again erasing all disk and installing first W10 and the Lubuntu):
i) Disable secure boot on bios.
ii) Install W10. (erasing all disk) and getting three partitions:
Sda1: NTFS 50 Mb
Sda2: NTFS 150 GB (System C:)
Sda3: NTFS 521 Mb
and leaving a no located size of 781 GB where later I will create the Lubuntu partitions (swap, / boot, / and /Home).
iii) On W10 disable fast boot.
iv) Create (with Rufus) a Lubuntu live usb (parameters: MBR, Bios)
v) Shutdown W10.
vi) Boot with the Lubuntu live usb.
vii) Select Try or Install Lubuntu.
viii) When Iḿ at the partitions screen, I see that Lubuntu installer doesn´t detect W10 partition:
ix) In spite of viii) I set the partitions in the unlocated space:
I create a logical partition with four subpartitions:
Sda4: Swap 4GB
Sda5: ext2 1 GB \boot
Sda6: ext4 35 GB
Sda7: ext4 740,95 GB \Home
x) I let the installation go, but at the end when I shutdown the computer and reboot, there is no GRUB menu and I only get a Lubuntu boot menu:
and then the logging screen, but after that I can not boot on W10 only in Lubuntu.
I have tried some solutions:
a) Boot with Lubuntu live usb and install boot repair:
sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install boot-repair
b) Boot with Lubuntu and change GRUB settings (root mode) in /etc/default/grub
My original GRUB settings:
lsb_release -i -s 2> /dev/null || echo Debian
I have tried change GRUB_TIMEOUT=0 to “10” or
GRUB_DISABLE_OS_PROBER=false BUT it is useless, I don´t get GRUB menu on boot or Lubuntu installer detect W10 neither.
Any help will be welcome.