no /dev/sde and /dev/sdf (solved)

[hedmo]

my last 2 hdd does not show in /dev but they are at bios startup

localhost ~ # ls /dev
adsp kmem ram3 stdin tty4 usbmon1
ati kmsg ram4 stdout tty40 usbmon2
audio log ram5 tty tty41 usbmon3
autofs loop0 ram6 tty0 tty42 usbmon4
block loop1 ram7 tty1 tty43 usbmon5
bsg loop2 ram8 tty10 tty44 usbmon6
bus loop3 ram9 tty11 tty45 usbmon7
cdrom loop4 random tty12 tty46 vcs
cdrw loop5 rfkill tty13 tty47 vcs1
char loop6 root tty14 tty48 vcs10
console loop7 rtc tty15 tty49 vcs11
core mapper rtc0 tty16 tty5 vcs12
cpu mcelog scd0 tty17 tty50 vcs2
cpu_dma_latency md sda tty18 tty51 vcs3
cuse md0 sda1 tty19 tty52 vcs4
disk md1 sda2 tty2 tty53 vcs5
dm-0 md3 sda3 tty20 tty54 vcs6
dm-1 md4 sdb tty21 tty55 vcs7
dm-2 mem sdb1 tty22 tty56 vcs8
dm-3 mixer sdb2 tty23 tty57 vcs9
dm-4 network_latency sdb3 tty24 tty58 vcsa
dm-5 network_throughput sdc tty25 tty59 vcsa1
dm-6 null sdc4 tty26 tty6 vcsa10
dm-7 nvram sdd tty27 tty60 vcsa11
dsp oldmem sdd4 tty28 tty61 vcsa12
dvd port sequencer tty29 tty62 vcsa2
dvdrw ptmx sequencer2 tty3 tty63 vcsa3
fd pts sg0 tty30 tty7 vcsa4
full ram0 sg1 tty31 tty8 vcsa5
fuse ram1 sg2 tty32 tty9 vcsa6
hidraw0 ram10 sg3 tty33 ttyS0 vcsa7
hidraw1 ram11 sg4 tty34 ttyS1 vcsa8
hidraw2 ram12 shm tty35 ttyS2 vcsa9
hidraw3 ram13 snapshot tty36 ttyS3 vg
hpet ram14 snd tty37 urandom vga_arbiter
initctl ram15 sr0 tty38 usb zero
input ram2 stderr tty39 usbmon0
localhost ~ #

[NeddySeagoon]

hedmo,

I suspect you have an AHCI HDD chipset set to operate in IDE or Legacy mode.
lspci may well show ...(IDE Mode).

Go into your BIOS and ensure that the IDE/Legacy mode is not set for your HDD controller.
The option you want may be AHCI or even raid. (You don't have to use the raid)

This backwards compatibility mode has a single purpose - to allow Windows XP users to install the AHCI driver.
As such, it has limited functionality (e.g. only the first four drives can be seen) and often its very slow as DMA is not supported.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.