Disable Ubuntu 20.04 disk checkup every boot?
Solution 1:
Removing Disk Check on Persistent USB's
The command line option fsck.mode=skip can be used to skip the disk check.
The line Checking disks: 0% complete will still come up but fsck will not be run, nor will boot time be increased.
Edit the boot files below booted from a desktop or Live USB, not booted from the new persistent drive.
mkusb After the Persistent USB drive is created, open /boot/grub/grub.cfg as root.
-
Add
fsck.mode=skipto the Persistent menuentry thus:linux ($root)/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity fsck.mode=skip quiet splash persistent --- Newer versions of mkusb already include this fix.
If you also wish to remove the Try Ubuntu / Install Ubuntu screen delete "maybe-ubiquity".
UNetbootin After creating the boot drive, open /boot/grub/grub.cfg as root.
Add
fsck.mode=skipto the first menuentry for (UEFI boot mode).Open syslinux.cfg as root and add
fsck.mode=skipto the default menuentry for (BIOS boot mode).
Rufus After creating the boot drive, open /boot/grub/grub.cfg as root.
Add
fsck.mode=skipto the Default menuentry for (UEFI boot mode).Open /isolinux/txt.cfg as root and add
fsck.mode=skipto the "Try Ubuntu without installing" menuentry, (for BIOS boot mode).
The Try Ubuntu / Install Ubuntu screen can be removed from BIOS boot by overwriting syslinux.cfg with:
default persistent
label persistent
say Booting an Ubuntu Persistent session...
kernel /casper/vmlinuz
append file=/cdrom/preseed/ubuntu.seed boot=casper persistent initrd=/casper/initrd quiet splash noprompt --
The Try Ubuntu / Install Ubuntu screen can be removed from Rufus UEFI boot by removing "maybe-ubiquity" from /boot/grub/grub.cfg.
Edit 20200524: The above workaround is no longer needed.
This bug was fixed in the package casper - 1.447, as announced in: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1875548
Run:
sudo apt-get update
sudo apt-get install -y casper
I am still testing the fix.