Successfully created a DVD of the U M 20.04.1 64bit Desktop iso. On legacy Intel 64bit Pentium with 16GB memory Gigabyte motherboard. I created an empty GPT on 250GB SATA disc. Booted the DVD and ran the installer. I ran into a number of problems trying to create "workable" partitions appropriate to this hardware. Three (3) attempts resulted in the installer failing near the very end. Only when I used the disc partitioning option of "Erase disk and install Mate" did the installation complete. But this only resulted in a VERY strange disc with an MBR (not GPT), NO swap and strange partitions!
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Manual GPT partitions...
a. Normal installation and created part 1 100MB, phys, ext4, format, /boot.
this resulted in a mysterious untyped,unnamed 1 MB partition PRIOR to the one created.
b. created part 2 16000MB, phys, swap, from end of spare
c. created part 3 remaining, phys, ext4, format, / (for about 230MB)
d. near the end of the install of files error dialog popup"Error installing linux-image-5.4.0-47-generic package post-installation script subprocess returned error exit status 1".
Why is an unnamed, empty 1MB partition automatically created PRIOR to the manually created first partition? -
start over... Normal installation and "Erase disk and install Mate".
a. I get 2 creating partitions messages. I missed the first. But then got a strange install message where it says creating partition 5 as ext4. Why is there a default that has 5 partitions?
b. File installation continues to completion without error. -
fdisk immediately upon installer completion report a VERY strange layout:
a. the partition table is an MBR (dos) and not GPT
b. sda1, part 1, phys, bootable, Id b, W95 FAT32, 512MB, mounted at /boot/efi
What? There is no efi on a legacy system. Why is this created and mounted this way?
c. sda2, extended, part 2, Id 5, 232GB, no mount point. This starts at the end of part 1 and contains the rest of the disc. what is this for? It has no filesystem. Why?
d. sda5, phys, part 5, Id 83, Linux, 232GB, / mount point. This ALSO starts at the end of part 1 and contains the rest of the disc. It is IDENTICAL in start and length of the extended part 2! How can this be?
e. There is NO SWAP space! How can this be?
Can someone explain these errors when using a GPT, the strange installer-created MBR and crazy partitions and NO SWAP?
Better yet, how do I create a sane GPT and partitions for this legacy system?
thanks
oldunixguy