initramfs error while loading custum ubuntu core

[A.Surya Teja]

   I am also getting the same error with Intel(R) Celeron(R) CPU N3450 @ 1.10GHz.
   Builded Cutsom Ubuntu Core image with Custom gadget & kernel snaps .Flashed image to the USB pendrive using Startup Disk Creator tool.
   While booting Ubuntu core from USB Stick we are getting
 tsc clocksource switched,
Begin:Running /scripts/local-premount ... [
findfs: unable to resolve 'LABEL=writable and finally it was freezing at (initramfs).

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           ] sd 1:0:0:0: [sda] write protect is off
           ] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
           ] sda: sda1 sda2 sda3
           ] sd 1:0:0:0: [sda] Attached SCSI disk
           ] Freeing unused kernel memory: 1160k (ffffffff81f3e000 - ffffffff82060000)
           ] Write protecting the kernel read-only data : 14336k
           ] Freeing unused kernel memeory: 640k (ffff880001f60000 - ffff880002000000)
           ] Write protecting the kernel read-only data: 14336k
           ] Freeing unused kernel memory: 640k (ffff880001f60000 - ffff880002000000)
           ] Freeing unused kernel memory: 1196k (ffff8800022d5000 - ffff88002400000)
Loading, please wait...
[ ] exe (382) used greatest stack depth: 14104 bytes left
starting version229
[ ] systemd-udevd (391) used greatest stack depth: 13776 bytesleft
[ ] udevadm (393)used greatest stack depth: 13176 bytes left
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/nfs-top ... done.
Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-prmount ... done.
Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... [ 2.734088] [drm] RC6 on
[ 2.982105[ clocksource: Switched to clocksource tsc
findfs: unable to resolve 'LABEL=writable'
done.
[ 332.781444] kworker/dying (6) used greatest stack depth: 12864 bytes left
cannot find 'writable' partition

BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter 'help for a list of built-in commands.

(initramfs)

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Plese suggest on it.

With Regard's,
A.Surya Teja