On Tue 01 Apr 2025 at 04:09:31 (+0800), hlyg wrote: > On 3/31/25 10:50, David Wright wrote: > > Presumably that error message was from the screen. Have you looked > > at /var/log/installer/syslog for more expansive error messages? > > > Thank Wright! i have solved it on my own > > i am new user of gpt, fatal error is caused by my failure to create > efi partition > > it seems both installer and i are quite dumb
Or you didn't look at the Installation Guide. > in the end i use mbr, I presume that means that you are BIOS-booting. > as one of my PCs doesn't support gpt I'm surprised. I BIOS-boot my 20-yr old laptop into linux running on a GPT disk, and I scrapped a similar but older desktop too. Grub is installed in the protective MBR of the GPT disk, so the BIOS boots the MBR in the same way as if the disk was MBR-partitioned. > btw what is recommended size of efi partition? > > default size is 512M That's what I use (they're linux-only computers): Filesystem IUse% Type 1MB-blocks Used Avail Use% Mounted on /dev/sda2 - vfat 520 24 496 5% /boot/efi My BIOS-booting computers have a similarly-sized partition, but used as swap. It's there so that the disk is future-proofed for used with a UEFI computer. Other OSes might put other stuff in /boot/efi/; I don't know any details. Cheers, David.
