wifi intel AC7260 instalar firmware

Saludos chic@s!!!

Soy nuevo en el mundillo debian, asi que pido un poco de paciencia.

Llevo muy poco tiempo usando debian y de manera muy recucida, hice la instalación y todo funcionaba a la primera asi q no he tenido grandes peleas.

ahora me surge la primera, me han regalado una tarjeta pcie intel ac7260 de un equipo que ha pasado a mejor vida, segun he leido es compatible con linux asi que pinchada la tengo en mi portatil. Buscando como poder instalarla, lo mas claro que he visto, no me funciona. en custion lo que he hecho ha sido bajarme el driver de la pagina de intel: iwlwifi-7260-UCODE-25.30.14.0. tgz y descomprimirlo en lib/firmware y reiniciar el equipo. El resultado es que no me encuentra wifis.

iwconfig:

lo        no wireless extensions.

enp19s0   no wireless extensions.

lspci | grep wireless:

07:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

lshw -short:

H/W path         Device     Class          Description
======================================================
                            system         VPCEH1S1E (N/A)
/0                          bus            VAIO
/0/0                        memory         1MiB BIOS
/0/7                        memory         8GiB System Memory
/0/7/0                      memory         4GiB SODIMM DDR3
/0/7/1                      memory         4GiB SODIMM DDR3
/0/d                        processor      Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz
/0/d/e                      memory         128KiB L1 cache
/0/d/f                      memory         512KiB L2 cache
/0/d/10                     memory         3MiB L3 cache
/0/100                      bridge         2nd Generation Core Processor Family DRAM Controller
/0/100/1                    bridge         Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
/0/100/1/0                  display        GF119M [GeForce 410M]
/0/100/1/0.1                multimedia     GF119 HDMI Audio Controller
/0/100/16                   communication  6 Series/C200 Series Chipset Family MEI Controller #1
/0/100/1a                   bus            6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
/0/100/1a/1      usb1       bus            EHCI Host Controller
/0/100/1a/1/1               bus            Integrated Rate Matching Hub
/0/100/1a/1/1/2             multimedia     Sony Visual Communication Camera
/0/100/1b                   multimedia     6 Series/C200 Series Chipset Family High Definition Audio Controller
/0/100/1c                   bridge         6 Series/C200 Series Chipset Family PCI Express Root Port 1
/0/100/1c/0                 network        Wireless 7260
/0/100/1c.3                 bridge         6 Series/C200 Series Chipset Family PCI Express Root Port 4
/0/100/1c.3/0               generic        RTS5209 PCI Express Card Reader
/0/100/1c.5                 bridge         6 Series/C200 Series Chipset Family PCI Express Root Port 6
/0/100/1c.5/0    enp19s0    network        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
/0/100/1d                   bus            6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
/0/100/1d/1      usb2       bus            EHCI Host Controller
/0/100/1d/1/1               bus            Integrated Rate Matching Hub
/0/100/1d/1/1/5             input          2.4G Receiver
/0/100/1f                   bridge         HM65 Express Chipset Family LPC Controller
/0/100/1f.2                 storage        6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
/0/100/1f.3                 bus            6 Series/C200 Series Chipset Family SMBus Controller
/0/1             scsi0      storage        
/0/1/0.0.0       /dev/sda   disk           250GB Samsung SSD 840
/0/1/0.0.0/1     /dev/sda1  volume         224GiB EXT4 volume
/0/1/0.0.0/2     /dev/sda2  volume         8172MiB Extended partition
/0/1/0.0.0/2/5   /dev/sda5  volume         8172MiB Linux swap volume

journalctl -b -p err:

-- Logs begin at Sun 2018-11-04 17:07:20 CET, end at Sun 2018-11-04 18:17:01 CET. --
nov 04 17:07:20 debian avahi-daemon[347]: chroot.c: open() failed: No such file or directory
nov 04 17:07:20 debian kernel: iwlwifi 0000:07:00.0: firmware: failed to load iwlwifi-7260-17.ucode (-2)
nov 04 17:07:22 debian dhclient[587]: Failed to get interface index: No such device
nov 04 17:07:22 debian dhclient[587]: 
nov 04 17:07:22 debian dhclient[587]: If you think you have received this message due to a bug rather
nov 04 17:07:22 debian dhclient[587]: than a configuration issue please read the section on submitting
nov 04 17:07:22 debian dhclient[587]: bugs on either our web page at www.isc.org or in the README file
nov 04 17:07:22 debian dhclient[587]: before submitting a bug.  These pages explain the proper
nov 04 17:07:22 debian dhclient[587]: process and the information we find helpful for debugging..
nov 04 17:07:22 debian dhclient[587]: 
nov 04 17:07:22 debian dhclient[587]: exiting.
nov 04 17:07:22 debian systemd[1]: Failed to start Raise network interfaces.
nov 04 17:07:56 debian pulseaudio[936]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply
nov 04 17:12:23 debian kernel: iwlwifi 0000:07:00.0: firmware: failed to load iwlwifi-7260-17.ucode (-2)

pego todo lo que he visto que normalmente se pide en otros hilos con problemas similares ya que no he sido capaz de ver algo de luz.

gracias de antemano