This one is different from other initramfs-tools post-installation errors. /boot is on / which has plenty of space, but update-initramfs is missing /boot/initrd.img-5.4.0-37-generic.new.
See end of DpkgTerminalLog.txt;
update-initramfs: Generating /boot/initrd.img-5.4.0-37-generic
mv: cannot stat '/boot/initrd.img-5.4.0-37-generic.new': No such file or directory
dpkg: error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess returned error exit status 1
This one is different from other initramfs-tools post-installation errors. /boot is on / which has plenty of space, but update-initramfs is missing /boot/initrd. img-5.4. 0-37-generic. new.
See Df.txt;
/dev/sda5 436953712 8324136 406363876 3% /
/dev/sda1 523248 4 523244 1% /boot/efi
See end of DpkgTerminalLog .txt; img-5.4. 0-37-generic initrd. img-5.4. 0-37-generic. new': No such file or directory
update-initramfs: Generating /boot/initrd.
mv: cannot stat '/boot/
dpkg: error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess returned error exit status 1