Comment # 9 on bug 1226302 from Ivan Ivanov

I see following in your console log, which do not look right.

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Starting dracut pre-mount hook...
[    9.017613] dracut-pre-mount[503]: Created symlink
/etc/systemd/system/systemd-fsck-root.service → /dev/null.
[   11.988843] dracut-pre-mount[493]: Warning: Requested OEM systemsize exceeds
free space on the disk:
[   12.008556] dracut-pre-mount[493]: Warning: Disk won't be re-partitioned !
[   12.024312] dracut-pre-mount[493]: Warning: Requested size(s): root:(keep)
[   12.040318] dracut-pre-mount[493]: Warning: ==> Free Space on disk: 4 MB
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Could you replace kernel command line, in Grub2 menu, from 
'log_level=3' to 'ignore_loglevel' and add 'earlycon' parameter, please?