uuid error gives extra long boot time while it counts down

[sdowney717]

I get very long boot times which I think is related to this

In the past, I had 4 hard drives installed, now only one drive.
So is there an easy way to fix this?

Processing triggers for initramfs-tools (0.130ubuntu3) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-10-generic
W: initramfs-tools configuration sets RESUME=UUID=e2731c91-afe6-405e-9876-1e25ac9cd77e
W: but no matching swap device is available.
I: The initramfs will attempt to resume from /dev/sda6
I: (UUID=388b3c4a-93a3-473c-89ec-77e8688e5845)
I: Set the RESUME variable to override this.
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/i386-linux-gnu_GL.conf: No such file or directory
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/x86_64-linux-gnu_EGL.conf: No such file or directory
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf: No such file or directory
Processing triggers for libc-bin (2.27-0ubuntu2) ...
Processing triggers for menu (2.1.47ubuntu1) ...

[oldfred]

Post these in code tags:
sudo blkid -c /dev/null -o list

lsblk -o NAME,LABEL,PARTLABEL,SIZE,UUID,MOUNTPOINT

cat /etc/fstab

[sdowney717]

I solved by putting those 3 drives back into the PC.

[flocculant]

I solved by putting those 3 drives back into the PC.

That would work - I suspect also that commenting out the swap line in fstab would have done so too

[AtesComp]

Processing triggers for initramfs-tools (0.130ubuntu3) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-10-generic
W: initramfs-tools configuration sets RESUME=UUID=e2731c91-afe6-405e-9876-1e25ac9cd77e
W: but no matching swap device is available.
I: The initramfs will attempt to resume from /dev/sda6
I: (UUID=388b3c4a-93a3-473c-89ec-77e8688e5845)
I: Set the RESUME variable to override this.
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/i386-linux-gnu_GL.conf: No such file or directory
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/x86_64-linux-gnu_EGL.conf: No such file or directory
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf: No such file or directory
Processing triggers for libc-bin (2.27-0ubuntu2) ...
Processing triggers for menu (2.1.47ubuntu1) ...

The ​initramfs-tools RESUME implies you have hibernation turned on. Hibernation relies on swap space that is >= memory.
Your swap partition was on one of the removed drives. You can remove your old drives and setup a new swap on the single disk. The new swap can be a partition or a swap file. Using a swap file has the benefit of being easier to change/grow than a partition, especially when you have used up the rest of the drive with other partitions. Hibernation adds a little more effort for the swap file. When you boot without a defined swap space, your system may create a swap file at /swapfile automatically.

1. Turn off swap:
   sudo swapoff -a
2. Edit /etc/fstab:
   sudo nano /etc/fstab and remove / comment out (#) the swap line
3. Remove the partition / drive / swap file:
   gparted, parted, sudo rm /swapfile or similar. In your case, just power off and remove the drives (you can do this for the reboot later).
4. Create the SWAP space file (for a 16GiB RAM system + 2GiB, adjust if different):
   sudo dd if=/dev/zero of=/swapfile bs=1024 count=18874368
   --OR--
   sudo fallocate -l 18g /swapfile (but this may allow for holes in the file, see others for problems)
   
   sudo chmod 600 /swapfile
   sudo mkswap /swapfile
   sudo swaplabel -L SWAP /swapfile
5. Turn on swap:
   sudo swapon /swapfile
6. Edit the file "/etc/fstab" and add / un-comment and change the swap line:
   sudo nano /etc/fstab
   Add/Change: /swapfile none swap sw 0 0
   --OR--
   echo '/swapfile none swap defaults 0 0' | sudo tee -a /etc/fstab
7. Get the swap file's partition info:
   blkid
   The UUID can be used as you have above or the device path.
8. Get the swap file's partition offset:
   sudo filefrag -v /swapfile
   Use the first extent line to get the physical offset to the file in the partition.
   

   Filesystem type is: ef53
   File size of /swapfile is 19327352832 (4718592 blocks of 4096 bytes)
    ext:     logical_offset:        physical_offset: length:   expected: flags:
      0:        0..       0:  106084352.. 106084352:      1:

   Then, 106084352 is the physical offset.
9. Edit the hibernate resume configuration:
   sudo nano /etc/initramfs-tools/conf.d/resume
   Modify/Add the "RESUME" and "RESUME_OFFSET" lines and values:
   * The "RESUME" value is from the "blkid" command for the partition containing the swap file.
   RESUME=/dev/sda1 (or similar)
   --OR--
   RESUME=UUID=<your UUID here>
   * The "RESUME_OFFSET" value is from the "filefrag" command and is the file's offset location from the beginning of the partition.
   RESUME_OFFSET=<your offset here>
   
10. Edit the GRUB configuration to include the "resume" and "resume_offset" values:
    sudo nano /etc/default/grub
    Modify: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=<as above> resume_offset=<as above>"
11. Update the initramfs:
    sudo update-initramfs -u -k all
12. Update GRUB:
    sudo update-grub
13. Reboot

Enjoy!

[slickymaster]

Ubuntu 18.04 is already released.

Thread closed