Before installation with only 1 partition made I typed from shell: fsck_hfs -r -d /dev/disk0s2
and I got:

Using cacheBlockSize=32k cacheTotalBlock=1024
Verifying volume when it is mounted with write access
Checking Journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Cannot repair volume when it is mounted with write access.
The volume Untitled could not be repaired.
volume type is pure HFS+
primary MDB is at block 0 0x00
alternate MDB is at block 0 0x00
primary VHB is at block 2 0x02
alternate VHB is at block 155629662 0x946b85e
sector size = 512 0x200
Volume Object flags = 0x07
total sectors for volume = 155629664 0x946b860
total sectors for embedded volume = 0 0x00


Any idea?


[ Edited by Goodman 03.08.2022 - 23:19 ]