[Sony Xperia XZ1 Compact ROMs, Kernels, Recoveries,] munjeni:
Unable to get ua working, have no idea why I'm getting this error:

ERROR [526] Cannot open device '' (errno=2)
ERROR [64] Couldn't create a disk info
ERROR [183] Unable to create disks info
ERROR [148] dsi is NULL. Double free?
ERROR [343] Unable to destroy disks info
WARN [112] Unknown storage type:N/A
ERROR [203] LUN Error, failed to open device .
ERROR [128] LBM Error, Open LUN for system failed.
WARN [45] LBM partition collect Error, system
ERROR [661] Error from ua_updater_start

LUN error but I have set two needed luns, first one with android filesystem, seccond one with xbl, and created all symlinks in /dev/block/bootdevice/by-name

root@ubuntu:~# ls -l /dev/block/bootdevice/by-name
total 0
lrwxrwxrwx 1 root root 10 Oct 22 20:27 abl -> /dev/vdb11
lrwxrwxrwx 1 root root 10 Oct 22 20:27 ablbak -> /dev/vdb12
lrwxrwxrwx 1 root root 10 Oct 22 20:27 apdp -> /dev/vdb40
lrwxrwxrwx 1 root root 10 Oct 22 20:27 appslog -> /dev/vdb58
lrwxrwxrwx 1 root root 10 Oct 22 20:27 bluetooth -> /dev/vdb39
lrwxrwxrwx 1 root root 10 Oct 22 20:27 boot -> /dev/vdb38
lrwxrwxrwx 1 root root 10 Oct 22 20:27 cache -> /dev/vdb53
lrwxrwxrwx 1 root root 10 Oct 22 20:27 cmnlib -> /dev/vdb16
lrwxrwxrwx 1 root root 10 Oct 22 20:27 cmnlib64 -> /dev/vdb18
lrwxrwxrwx 1 root root 10 Oct 22 20:27 cmnlib64bak -> /dev/vdb19
lrwxrwxrwx 1 root root 10 Oct 22 20:27 cmnlibbak -> /dev/vdb17
lrwxrwxrwx 1 root root 10 Oct 22 20:27 ddr -> /dev/vdb48
lrwxrwxrwx 1 root root 10 Oct 22 20:27 devcfg -> /dev/vdb21
lrwxrwxrwx 1 root root 10 Oct 22 20:27 devcfgbak -> /dev/vdb22
lrwxrwxrwx 1 root root 10 Oct 22 20:27 devinfo -> /dev/vdb13
lrwxrwxrwx 1 root root 10 Oct 22 20:27 diag -> /dev/vdb59
lrwxrwxrwx 1 root root 10 Oct 22 20:27 dpo -> /dev/vdb42
lrwxrwxrwx 1 root root 10 Oct 22 20:27 dsp -> /dev/vdb37
lrwxrwxrwx 1 root root 10 Oct 22 20:27 FOTAKernel -> /dev/vdb47
lrwxrwxrwx 1 root root 10 Oct 22 20:27 frp -> /dev/vdb56
lrwxrwxrwx 1 root root 10 Oct 22 20:27 fsc -> /dev/vdb51
lrwxrwxrwx 1 root root 10 Oct 22 20:27 fsg -> /dev/vdb34
lrwxrwxrwx 1 root root 10 Oct 22 20:27 fsmetadata -> /dev/vdb61
lrwxrwxrwx 1 root root 9 Oct 22 20:27 hyp -> /dev/vdb7
lrwxrwxrwx 1 root root 9 Oct 22 20:27 hypbak -> /dev/vdb8
lrwxrwxrwx 1 root root 10 Oct 22 20:27 keymaster -> /dev/vdb14
lrwxrwxrwx 1 root root 10 Oct 22 20:27 keymasterbak -> /dev/vdb15
lrwxrwxrwx 1 root root 10 Oct 22 20:27 keystore -> /dev/vdb55
lrwxrwxrwx 1 root root 10 Oct 22 20:27 limits -> /dev/vdb44
lrwxrwxrwx 1 root root 10 Oct 22 20:27 logfs -> /dev/vdb46
lrwxrwxrwx 1 root root 9 Oct 22 20:27 LTALabel -> /dev/vdb2
lrwxrwxrwx 1 root root 10 Oct 22 20:27 misc -> /dev/vdb54
lrwxrwxrwx 1 root root 10 Oct 22 20:27 modem -> /dev/vdb36
lrwxrwxrwx 1 root root 10 Oct 22 20:27 modemst1 -> /dev/vdb49
lrwxrwxrwx 1 root root 10 Oct 22 20:27 modemst2 -> /dev/vdb50
lrwxrwxrwx 1 root root 10 Oct 22 20:27 msadp -> /dev/vdb41
lrwxrwxrwx 1 root root 10 Oct 22 20:27 oem -> /dev/vdb63
lrwxrwxrwx 1 root root 10 Oct 22 20:27 persist -> /dev/vdb33
lrwxrwxrwx 1 root root 9 Oct 22 20:27 pmic -> /dev/vdb9
lrwxrwxrwx 1 root root 10 Oct 22 20:27 pmicbak -> /dev/vdb10
lrwxrwxrwx 1 root root 10 Oct 22 20:27 Qnovo -> /dev/vdb60
lrwxrwxrwx 1 root root 10 Oct 22 20:27 rdimage -> /dev/vdb62
lrwxrwxrwx 1 root root 9 Oct 22 20:27 rpm -> /dev/vdb3
lrwxrwxrwx 1 root root 9 Oct 22 20:27 rpmbak -> /dev/vdb4
lrwxrwxrwx 1 root root 10 Oct 22 20:27 sec -> /dev/vdb35
lrwxrwxrwx 1 root root 10 Oct 22 20:27 splash -> /dev/vdb43
lrwxrwxrwx 1 root root 10 Oct 22 20:27 ssd -> /dev/vdb52
lrwxrwxrwx 1 root root 10 Oct 22 20:27 sti -> /dev/vdb20
lrwxrwxrwx 1 root root 10 Oct 22 20:27 storsec -> /dev/vdb23
lrwxrwxrwx 1 root root 10 Oct 22 20:27 storsecbak -> /dev/vdb24
lrwxrwxrwx 1 root root 10 Oct 22 20:27 system -> /dev/vdb65
lrwxrwxrwx 1 root root 9 Oct 22 20:27 TA -> /dev/vdb1
lrwxrwxrwx 1 root root 10 Oct 22 20:27 toolsfv -> /dev/vdb45
lrwxrwxrwx 1 root root 9 Oct 22 20:27 tz -> /dev/vdb5
lrwxrwxrwx 1 root root 9 Oct 22 20:27 tzbak -> /dev/vdb6
lrwxrwxrwx 1 root root 10 Oct 22 20:27 tzxfl -> /dev/vdb29
lrwxrwxrwx 1 root root 10 Oct 22 20:27 tzxflattest -> /dev/vdb27
lrwxrwxrwx 1 root root 10 Oct 22 20:27 tzxflattestbak -> /dev/vdb28
lrwxrwxrwx 1 root root 10 Oct 22 20:27 tzxflbak -> /dev/vdb30
lrwxrwxrwx 1 root root 10 Oct 22 20:27 userdata -> /dev/vdb66
lrwxrwxrwx 1 root root 10 Oct 22 20:27 vbmeta -> /dev/vdb57
lrwxrwxrwx 1 root root 10 Oct 22 20:27 vendor -> /dev/vdb64
lrwxrwxrwx 1 root root 8 Oct 22 20:28 xbl -> /dev/vda
lrwxrwxrwx 1 root root 10 Oct 22 20:27 xfl -> /dev/vdb25
lrwxrwxrwx 1 root root 10 Oct 22 20:27 xflbak -> /dev/vdb26
lrwxrwxrwx 1 root root 10 Oct 22 20:27 xflkeystore -> /dev/vdb31
lrwxrwxrwx 1 root root 10 Oct 22 20:27 xflkeystorebak -> /dev/vdb32

Strace tells this error:

readlinkat(AT_FDCWD, "/dev/block/bootdevice/by-name/xbl", "/dev/vda", 4095) = 8
openat(AT_FDCWD, "", O_RDWR) = -1 ENOENT (No such file or directory)
readlinkat(AT_FDCWD, "/dev/block/bootdevice/by-name/system", "/dev/vdb65", 4095) = 10
openat(AT_FDCWD, "", O_RDWR|O_SYNC) = -1 ENOENT (No such file or directory)

What does AT_FDCWD? What might I miss? LUN error and LBM Error, what is LMB?