Disk /dev/sdb: 238.5 GiB, 256060514304 bytes, 500118192 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: gpt

Device         Start       End   Sectors  Size Type
/dev/sdb1       2048   1023999   1021952  499M EFI System
/dev/sdb2    1024000   1026047      2048    1M BIOS boot
/dev/sdb3    1026048 491728895 490702848  234G Linux filesystem
/dev/sdb4  491728896 500117503   8388608    4G Linux swap


Disk /dev/loop0: 953.5 MiB, 999809024 bytes, 1952752 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