Here are logs when upgrading kernel to 3.19 from 3.13 on Ubuntu 14.04 desktop.
Reference
https://wiki.ubuntu.com/Kernel/LTSEnablementStack
Before upgrading the kernel.
hattori@ubuntu:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
hattori@ubuntu:~$ uname -ri
3.13.0-71-generic x86_64
upgrade kernel
hattori@ubuntu:~$ sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid
Before rebooting the OS, I dumped kernel modules currently loaded.
I use an USB WIFI adapter on my laptop(rt2800usb), which is important for me, because I can not access to the internet without that module.
dump kernel module loaded on kernel 3.13.0-71.
hattori@ubuntu:~$ lsmod > lsmod-`uname -r`.txt
hattori@ubuntu:~$ cat lsmod-3.13.0-71-generic.txt
Module Size Used by
btrfs 835994 0
raid6_pq 97812 1 btrfs
xor 21411 1 btrfs
ufs 74890 0
qnx4 13317 0
hfsplus 107516 0
hfs 54677 0
minix 36140 0
ntfs 97369 0
msdos 17332 0
jfs 181348 0
xfs 916487 0
libcrc32c 12644 2 xfs,btrfs
ctr 13049 3
ccm 17773 3
ip6t_REJECT 12939 2
ipt_REJECT 12541 4
xt_multiport 12798 2
ip6table_filter 12815 1
ip6_tables 27025 1 ip6table_filter
ebtable_nat 12807 0
ebtables 30913 1 ebtable_nat
pci_stub 12622 0
xt_conntrack 12760 3
xt_addrtype 12635 2
iptable_filter 12810 1
veth 13331 0
bnep 19624 2
rfcomm 69160 0
ipt_MASQUERADE 12880 9
bluetooth 391136 10 bnep,rfcomm
iptable_nat 13011 1
nf_conntrack_ipv4 15012 4
nf_defrag_ipv4 12758 1 nf_conntrack_ipv4
nf_nat_ipv4 13263 1 iptable_nat
nf_nat 21841 3 ipt_MASQUERADE,nf_nat_ipv4,iptable_nat
nf_conntrack 97202 6 ipt_MASQUERADE,nf_nat,nf_nat_ipv4,xt_conntrack,iptable_nat,nf_conntrack_ipv4
xt_CHECKSUM 12549 4
aufs 202783 0
xt_tcpudp 12884 18
iptable_mangle 12695 1
ip_tables 27239 3 iptable_filter,iptable_mangle,iptable_nat
x_tables 34059 14 ip6table_filter,xt_CHECKSUM,ip_tables,xt_tcpudp,ipt_MASQUERADE,xt_conntrack,xt_multiport,iptable_filter,ebtables,ipt_REJECT,iptable_mangle,ip6_tables,xt_addrtype,ip6t_REJECT
nfsd 284385 2
auth_rpcgss 59338 1 nfsd
nfs_acl 12837 1 nfsd
nfs 236726 0
lockd 93977 2 nfs,nfsd
sunrpc 289260 6 nfs,nfsd,auth_rpcgss,lockd,nfs_acl
fscache 63988 1 nfs
bridge 110841 0
binfmt_misc 17468 1
stp 12976 1 bridge
llc 14552 2 stp,bridge
arc4 12608 2
rt2800usb 27034 0
rt2x00usb 20742 1 rt2800usb
rt2800lib 89076 1 rt2800usb
rt2x00lib 55307 3 rt2x00usb,rt2800lib,rt2800usb
radeon 1522902 4
mac80211 630728 3 rt2x00lib,rt2x00usb,rt2800lib
cfg80211 484040 2 mac80211,rt2x00lib
ttm 93424 1 radeon
drm_kms_helper 55071 1 radeon
crc_ccitt 12707 1 rt2800lib
drm 303102 6 ttm,drm_kms_helper,radeon
i2c_algo_bit 13413 1 radeon
snd_usb_audio 155013 1
snd_usbmidi_lib 29215 1 snd_usb_audio
shpchp 37032 0
snd_hda_codec_realtek 65812 1
kvm_amd 60066 0
snd_hda_intel 56531 3
snd_hda_codec 193017 2 snd_hda_codec_realtek,snd_hda_intel
kvm 455843 1 kvm_amd
snd_hwdep 13602 2 snd_usb_audio,snd_hda_codec
snd_pcm 102099 3 snd_usb_audio,snd_hda_codec,snd_hda_intel
i2c_piix4 22155 0
k10temp 13126 0
mac_hid 13205 0
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
snd_seq_midi 13324 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_rawmidi 30144 2 snd_usbmidi_lib,snd_seq_midi
serio_raw 13462 0
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
dm_multipath 22873 0
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 29482 2 snd_pcm,snd_seq
edac_core 62291 0
snd 69322 20 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
soundcore 12680 1 snd
edac_mce_amd 22617 0
scsi_dh 14882 1 dm_multipath
parport_pc 32701 0
ppdev 17671 0
lp 17759 0
parport 42348 3 lp,ppdev,parport_pc
hid_generic 12548 0
usbhid 52659 0
hid 106148 2 hid_generic,usbhid
usb_storage 62209 3
firewire_ohci 40409 0
psmouse 106692 0
firewire_core 68769 1 firewire_ohci
crc_itu_t 12707 1 firewire_core
ahci 34091 2
r8169 71677 0
libahci 32716 1 ahci
mii 13934 1 r8169
make sure rt2800usb kernel module exists in kernel 3.19.0-41.
hattori@ubuntu:~$ modinfo rt2800usb | head -1
filename: /lib/modules/3.13.0-71-generic/kernel/drivers/net/wireless/rt2x00/rt2800usb.ko
hattori@ubuntu:~$ ls /lib/modules/3.19.0-41-generic/kernel/drivers/net/wireless/rt2x00/rt2800*
/lib/modules/3.19.0-41-generic/kernel/drivers/net/wireless/rt2x00/rt2800lib.ko
/lib/modules/3.19.0-41-generic/kernel/drivers/net/wireless/rt2x00/rt2800mmio.ko
/lib/modules/3.19.0-41-generic/kernel/drivers/net/wireless/rt2x00/rt2800pci.ko
/lib/modules/3.19.0-41-generic/kernel/drivers/net/wireless/rt2x00/rt2800usb.ko
reboot the OS.
Now my Ubuntu box is running with kernel 3.19.
hattori@ubuntu:~$ uname -ri
3.19.0-41-generic x86_64
I can access to the internet after upgrading the kerne.
hattori@ubuntu:~$ ping -c 1 www.google.com
PING www.google.com (216.58.221.4) 56(84) bytes of data.
64 bytes from nrt13s38-in-f4.1e100.net (216.58.221.4): icmp_seq=1 ttl=56 time=8.50 ms
--- www.google.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 8.503/8.503/8.503/0.000 ms
There is rt2800usb kernel module, which is a USB WIFI driver.
hattori@ubuntu:~$ lsmod | grep rt2800usb
rt2800usb 28672 0
rt2x00usb 24576 1 rt2800usb
rt2800lib 90112 1 rt2800usb
rt2x00lib 57344 3 rt2x00usb,rt2800lib,rt2800usb