Here i am again.
Trying to find a solution for my last problem (No boot)
i made a 66-update dry run.
This is the end of the result: 
66-update(src/lib66/ssexec_enable.c: start_write(): 114): tracing: write resolve file of: mount-dev
66-update(src/lib66/ssexec_enable.c: start_write(): 126): tracing: Service written successfully: mount-dev
66-update(src/lib66/parser_write.c: write_services(): 110): tracing: Write service mount-fstab ...
66-update(src/lib66/ssexec_enable.c: start_write(): 114): tracing: write resolve file of: mount-fstab
66-update(src/lib66/ssexec_enable.c: start_write(): 126): tracing: Service written successfully: mount-fstab
66-update(src/lib66/parser_write.c: write_services(): 102): warning: unable to create /tmp/boot_back:ynYR2N/svc/tty-earlier@ tty12: No such file or directory
66-update(src/lib66/ssexec_enable.c: start_write(): 106): fatal: unable to write service: mount-fstab
Should not be, should it?
Also I cant understand the difference between fstab and lsblk: 
igrk@ obarunS6 [111] ~ % cat /etc/fstab 
# /dev/sda3
UUID=016bf4b9-a9db-4cfd-b4eb-f548a0f944ab	/         	ext4      	rw,relatime	0 1

# /dev/sda1
UUID=9a79c8ff-d3c9-43fc-9b14-ed00414d7701	/boot     	ext4      	rw,relatime	0 2

# /dev/sda4
UUID=d95db30f-f0a9-4c09-b5e5-d09da013decb	/home     	ext4      	rw,relatime	0 2

# /dev/sda2
UUID=9993ae43-dc39-4d9b-b1a6-544439dc7ef5	none      	swap      	defaults  	0 0

igrk@ obarunS6 ~ % lsblk -f
NAME   FSTYPE FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
sda                                                                           
sdb                                                                           
├─sdb1 ext4   1.0         9a79c8ff-d3c9-43fc-9b14-ed00414d7701  396,7M    11% /boot
├─sdb2 swap   1           9993ae43-dc39-4d9b-b1a6-544439dc7ef5                [SWAP]
├─sdb3 ext4   1.0         016bf4b9-a9db-4cfd-b4eb-f548a0f944ab    4,8G    63% /
└─sdb4 ext4   1.0         d95db30f-f0a9-4c09-b5e5-d09da013decb  289,4G    29% /home
sr0
Solved.
Rebuilded boot-tree from chroot.

Still i can't understand why my lsblk and fstab are not the same opinion about the name of my partitions: 
igrk@ obarunS6 ~ % lsblk                      
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda      8:0    1     0B  0 disk 
sdb      8:16   0 465,8G  0 disk 
├─sdb1   8:17   0   512M  0 part /boot
├─sdb2   8:18   0   3,1G  0 part [SWAP]
├─sdb3   8:19   0  15,5G  0 part /
└─sdb4   8:20   0 446,6G  0 part /home
sr0     11:0    1  1024M  0 rom  
igrk@ obarunS6 ~ % cat /etc/fstab 
# /dev/sda3
UUID=016bf4b9-a9db-4cfd-b4eb-f548a0f944ab	/         	ext4      	rw,relatime	0 1

# /dev/sda1
UUID=9a79c8ff-d3c9-43fc-9b14-ed00414d7701	/boot     	ext4      	rw,relatime	0 2

# /dev/sda4
UUID=d95db30f-f0a9-4c09-b5e5-d09da013decb	/home     	ext4      	rw,relatime	0 2

# /dev/sda2
UUID=9993ae43-dc39-4d9b-b1a6-544439dc7ef5	none      	swap      	defaults  	0 0

igrk@ obarunS6 ~ %

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