wrong UUID assumed during boot

no-windose · 05-14-2020, 05:57 PM

My boot time is a bit long and it gives me the following message:

W: initramfs-tools configuration sets RESUME=UUID=long-alpha-numerical-string
W: but no matching swap device is available.

I get the same message after boot if I type at the command line:

# update initramfs -u

Moreover, if I display the block device attribute with

# blkid

I get a list of UUIDs, none of which matches the one showing up on the long string in the warning message. Obviously, the UUID called by initramfs is wrong. Apart from that, my Ubuntu 18.04 installation works well but I may not have a working swap space.

Could anyone help me set up the correct UUID at boot time?

shruggy · 05-15-2020, 10:53 AM

Edit /etc/initramfs-tools/conf.d/resume and replace the wrong UUID there with that of your swap partition. Then

Code:

update initramfs -u
update-grub

no-windose · 05-15-2020, 03:21 PM

Thanks shruggy but I have already tried what you suggest and I still get the same warning message with the same wrong UUID...

syg00 · 05-15-2020, 05:50 PM

Might have been easier to just adjust the UUID of the swap to match rather than chase where it is referenced - see "man mkswap".
Else check that grub doesn't also pass the same resume to the kernel - the update initramfs probably picks that up.

no-windose · 05-16-2020, 03:58 PM

Thanks syg00. Should I type something like

Quote:

# mkswap --uuid UUID /dev/sdx

with UUID as it appears on the warning message?

sp331yi · 05-16-2020, 04:46 PM

Why not mcedit your fstab to show identical UUID from the blkid command?
Wouldn't this be enough?

BW-userx · 05-16-2020, 04:49 PM

Yep I’d just fix the fstab to have the correct uuid done deal.

syg00 · 05-17-2020, 03:17 AM

Quote:

Originally Posted by no-windose

Thanks syg00. Should I type something like

Close - it will (probably) be a partition, not a disk; lsblk will indicate that.

As for the fstab comments, this failure is in the initramfs - way before the fstab is processed.

beachboy2 · 05-17-2020, 09:53 AM

no-windose,

Obtain the correct UUID (for example, 948396b3-f329-4b5a-9771-1464ff25eca9) for the swap partition using the blkid command.

Then add that UUID to this file:

/etc/initramfs-tools/conf.d/resume

using the following command:

Code:

echo "RESUME=UUID=948396b3-f329-4b5a-9771-1464ff25eca9" | sudo tee /etc/initramfs-tools/conf.d/resume

Then update the kernels on the system:

Code:

sudo update-initramfs -u -k all

Reboot the system:

Code:

reboot

no-windose · 05-17-2020, 01:11 PM

Thank you all but neither modifying fstab not resume makes any difference...

beachboy2 · 05-18-2020, 01:40 AM

no-windose,

Open /etc/initramfs-tools/conf.d/resume and either delete that particular line or put a comment (#) in front of it.

Then reboot and run:

Code:

sudo apt update && sudo apt upgrade

no-windose · 05-18-2020, 11:38 AM

beachboy2,

If I comment or delete this particular line, it then takes ages to boot and I still get the same warning message.

BW-userx · 05-18-2020, 11:59 AM

Drop it, and try a different disto. mO