strange i had those resolv issue with ubuntu 19.04 daily (pending) from 2019-02-14 for sure.
now i tried again with ubuntu 19.04 daily (pending) from 2019-02-20, and now it seems to be not an issue.
i also tried the other versions 18.10 and 18.04.2... there it is no issue with resolv anymore.
the only thing i could notice now was, that resolving (ping google.de) takes a bit longer under 19.04 daily than under 18.10 / 18.04.2... or maybe it is only my mind.
at the moment i can not reproduce my ony reported resolv issue. :/
pxe boot menu entries:
########################################
LABEL ubuntu-daily-x64
MENU LABEL Ubuntu x64 Daily-Live
KERNEL http://192.168.0.1/nfs/ubuntu-daily-x64/casper/vmlinuz
INITRD http://192.168.0.1/nfs/ubuntu-daily-x64/casper/initrd
APPEND nfsroot=192.168.0.1:/srv/nfs/ubuntu-daily-x64 ro netboot=nfs file=/cdrom/preseed/ubuntu.seed boot=casper -- debian-installer/language=de console-setup/layoutcode=de keyboard-configuration/layoutcode=de keyboard-configuration/variant=German
TEXT HELP
Boot to Ubuntu x64 Daily-Live
User: ubuntu
ENDTEXT
########################################
LABEL ubuntu-x64
MENU LABEL Ubuntu x64
KERNEL http://192.168.0.1/nfs/ubuntu-x64/casper/vmlinuz
INITRD http://192.168.0.1/nfs/ubuntu-x64/casper/initrd
APPEND nfsroot=192.168.0.1:/srv/nfs/ubuntu-x64 ro netboot=nfs file=/cdrom/preseed/ubuntu.seed boot=casper systemd.mask=tmp.mount -- debian-installer/language=de console-setup/layoutcode=de keyboard-configuration/layoutcode=de keyboard-configuration/variant=German
TEXT HELP
Boot to Ubuntu x64 Live
User: ubuntu
ENDTEXT
########################################
LABEL ubuntu-lts-x64
MENU LABEL Ubuntu LTS x64
KERNEL http://192.168.0.1/nfs/ubuntu-lts-x64/casper/vmlinuz
INITRD http://192.168.0.1/nfs/ubuntu-lts-x64/casper/initrd
APPEND nfsroot=192.168.0.1:/srv/nfs/ubuntu-lts-x64 ro netboot=nfs file=/cdrom/preseed/ubuntu.seed boot=casper systemd.mask=tmp.mount -- debian-installer/language=de console-setup/layoutcode=de keyboard-configuration/layoutcode=de keyboard-configuration/variant=German
TEXT HELP
Boot to Ubuntu LTS x64 Live
User: ubuntu
ENDTEXT
i never used ip=dhcp in the boot menu entries.
strange i had those resolv issue with ubuntu 19.04 daily (pending) from 2019-02-14 for sure.
now i tried again with ubuntu 19.04 daily (pending) from 2019-02-20, and now it seems to be not an issue.
i also tried the other versions 18.10 and 18.04.2... there it is no issue with resolv anymore.
the only thing i could notice now was, that resolving (ping google.de) takes a bit longer under 19.04 daily than under 18.10 / 18.04.2... or maybe it is only my mind.
at the moment i can not reproduce my ony reported resolv issue. :/
pxe boot menu entries: ####### ####### ####### ####### ####### ## 192.168. 0.1/nfs/ ubuntu- daily-x64/ casper/ vmlinuz 192.168. 0.1/nfs/ ubuntu- daily-x64/ casper/ initrd 192.168. 0.1:/srv/ nfs/ubuntu- daily-x64 ro netboot=nfs file=/cdrom/ preseed/ ubuntu. seed boot=casper -- debian- installer/ language= de console- setup/layoutcod e=de keyboard- configuration/ layoutcode= de keyboard- configuration/ variant= German
###
LABEL ubuntu-daily-x64
MENU LABEL Ubuntu x64 Daily-Live
KERNEL http://
INITRD http://
APPEND nfsroot=
TEXT HELP
Boot to Ubuntu x64 Daily-Live
User: ubuntu
ENDTEXT
### ####### ####### ####### ####### ####### ## 192.168. 0.1/nfs/ ubuntu- x64/casper/ vmlinuz 192.168. 0.1/nfs/ ubuntu- x64/casper/ initrd 192.168. 0.1:/srv/ nfs/ubuntu- x64 ro netboot=nfs file=/cdrom/ preseed/ ubuntu. seed boot=casper systemd. mask=tmp. mount -- debian- installer/ language= de console- setup/layoutcod e=de keyboard- configuration/ layoutcode= de keyboard- configuration/ variant= German
LABEL ubuntu-x64
MENU LABEL Ubuntu x64
KERNEL http://
INITRD http://
APPEND nfsroot=
TEXT HELP
Boot to Ubuntu x64 Live
User: ubuntu
ENDTEXT
### ####### ####### ####### ####### ####### ## 192.168. 0.1/nfs/ ubuntu- lts-x64/ casper/ vmlinuz 192.168. 0.1/nfs/ ubuntu- lts-x64/ casper/ initrd 192.168. 0.1:/srv/ nfs/ubuntu- lts-x64 ro netboot=nfs file=/cdrom/ preseed/ ubuntu. seed boot=casper systemd. mask=tmp. mount -- debian- installer/ language= de console- setup/layoutcod e=de keyboard- configuration/ layoutcode= de keyboard- configuration/ variant= German
LABEL ubuntu-lts-x64
MENU LABEL Ubuntu LTS x64
KERNEL http://
INITRD http://
APPEND nfsroot=
TEXT HELP
Boot to Ubuntu LTS x64 Live
User: ubuntu
ENDTEXT