I am trying to install lubuntu 22.04 on DELL Optiplex 7060 (tiny) PC. The Optiplex 7060 accept Legacy boot (MBR) only for external device such as USB but does not accept Legacy/MBR for internal device such as internal HDD. To install Lubuntu on this computer i must use UEFI.
The standard Lubuntu install soft creates a MBR Partition out of the box. So i switch to “manual partitioning” during the install.
I made two partitions :
1 FAT 32 partition with 512 Mo and with flag “boot” and mountpoint /boot/efi
1 ext4 partition with flag “root” and mountpoint /
After install I started the BIOS and I added this new boot option in Boot sequence/UEFI.
After that the boot fails : no bootable partition was found.
Could you please tell me how to perform this partitioning to be compliant with UEFI ?
I just yanked the latest available image for 22.04 and I ran through the install in a VM.
I didn’t go through the install completely but I wasn’t entirely sure if the mount point needed to be /boot/efi after all but it does seem like that checks out.
The only thing I can think of is perhaps secure boot being enabled?
I can’t imagine that it took the boot mount point and it didn’t actually put everything under GPT.
Many thanks for your reply and for your support. I tried enabling and disabling secure boot but i get the same result in both case.
I think this issue could be du to the partitioning itself or to the setup of the boot sequence/ UEFI in the BIOS. The drive appears in the BIOS after installing with an UEFI partition. I added a mountpoint (not sure if /boot/efi is correct) but i didn’t find the file mentioned on the dell website you shared. Perhaps is it the key to fix that issue ?
I wrote the Lubuntu ISO as I normally do (I use mkusb & usually clone it to the thumb-drive) and installed both Lubuntu lunar and Lubuntu jammy in dual boot.
I know the Lubuntu installer will create either a
MBR install (single partition with no ESP) OR
uEFI install (ESP created)
depending on how the machine is booted. It’s normally a uefi/BIOS firmware setting that controls this, however some machines can be tricked to work one way according to how the ISO is written to installation media forcing an BIOS boot, or uEFI boot, thus how the ISO is written to your thumb-drive matters.
This is mostly FYI, but both jammy (22.04) & lunar (23.04) installed without issue for me on my dell 7050 using what I consider default options (I used the installs as QA-test installs, my lunar notes can be found here, jammyhere)
I already installed lubuntu on DELL 7050 and DELL 7040 without any issue. The specific characterictics of the DELL 7060 is that this machine does not support Legacy / MBR for internal device. As i result i must install as EFI but my EFI install seems not correct.
The install wizard of lubuntu is more MBR oriented. EFI install seems more complicated.
I didn’t know that it was not possible to install in UEFI when live system were started in legacy mode.
As i was booting from pxe (network boot) in legacy it was not working. I tried with an usb key in UEFI mode and the issue is fixed.
Do you know if booting from pxe/network in UEFI is possible ?