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/ 1 Year ago, wed, may 17, 2023, 1:19:16
On a Lenovo ThinkCentre desktop, after doing a clean install of Ubuntu I get the error "no operating system found".
This is the first thing I see when booting the computer, there is nothing printed before.
I installed Ubuntu as "erase disk and install Ubuntu". There is no other OS on the disk.
Boot mode in BIOS is set to UEFI. I've set this mode before booting from USB and installing the system.
Hardware:
- Lenovo ThinkCentre M92p
- only one HDD - WDC WDS240G2G0A (240GB SSD), which was working fine with Windows just before installing Ubuntu
- Intel i5-3470T, 8GB RAM
What am I missing?
More details about the partitioning that was created:
fdisk:
ubuntu@ubuntu:~$ sudo fdisk -l /dev/sda
Disk /dev/sda: 223.58 GiB, 240065183744 bytes, 468877312 sectors
Disk model: WDC WDS240G2G0A-
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: D018D616-4492-4595-8654-4C4C81B0DBB5
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M EFI System
/dev/sda2 1050624 468875263 467824640 223.1G Linux filesystem
gdisk:
ubuntu@ubuntu:~$ sudo gdisk -l /dev/sda
GPT fdisk (gdisk) version 1.0.8
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 468877312 sectors, 223.6 GiB
Model: WDC WDS240G2G0A-
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): D018D616-4492-4595-8654-4C4C81B0DBB5
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 468877278
Partitions will be aligned on 2048-sector boundaries
Total free space is 4029 sectors (2.0 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1050623 512.0 MiB EF00 EFI System Partition
2 1050624 468875263 223.1 GiB 8300
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