Robert Peters wrote:
512 bytes.
is OK for disk block device
This is spinning disk
fdisk -l /dev/sda
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
This is SSD with the partitions
fdisk -l /dev/sdb
Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
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: dos
Disk identifier: 0xd834ff9f
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 526335 524288 256M 83 Linux
/dev/sdb2 526336 976773167 976246832 465.5G 83 Linux
Perhaps the problem is related to installing from USB to USB.
regards