Re: Serial redirection halts on Dell PowerEdge 1955 Blade (mfsBSD)

On Friday, August 05, 2016 09:24:01 AM Lavery, Benjamin wrote:
> Good morning all,
> 
> I have been given an old Dell PowerEdge chassis filled with PowerEdge 1955 blades.  I also have a FreeNAS which I'm using to serve DHCP addresses and TFTP for PXE booting.
> 
> I can get the blades to PXE boot (I'm using pxelinux to load mfsbsd-10.3-RELEASE-amd64), but the serial redirection is only working for the first part of the boot sequence.  After select mfsBSD at the menu, I get the following (verbose boot chosen at the boot menu):
> 
>     Loading memdisk... ok
>                                                              ok
>     e820: 0000000000000000 00000000000a0000 1
>     e820: 0000000000100000 00000000cfea8000 1
>     e820: 00000000cffa8000 000000000000fc00 3
>     e820: 00000000cffb7c00 0000000000048400 2
>     Total size needed = 2513 bytes, allocating 3K
>     Old dos memory at 0x8a000 (map says 0xa0000), loading at 0x89400
>     1588: 0xffff  15E801: 0x3c00 0xcbba
>     INT 13 08: Success, count = 1, BPT = 0000:0000
>     Drive probing gives drive shift limit: 0x82
>     old: int13 = ca001da6  int15 = f000f859  int1e = f000efc7
>         new: int13 = 8940000a  int15 = 894003ba  int1e = f000efc7
>     Loading boot sector... booting...
>     /boot/config: -D
>     
>     FreeBSD/x86 boot
>     Default: 0:ad(0p2)/boot/loader
>     boot:
>     BTX loader 1.00  BTX version is 1.02
>     console comconsole failed to initialize
>     Consoles: internal video/keyboard  serial port
>     BIOS drive A: is disk0
>     BIOS drive C: is disk1
>     BIOS drive D: is disk2
>     BIOS 549kB/3353216kB available memory
>     
>     FreeBSD/x86 bootstrap loader, Revision 1.1
>      ([email protected], Fri Mar 25 02:04:38 UTC 2016)
>     \oading /boot/defaults/loader.conf
>     lapic3: Routing NMI -> LINT1
>     lapic3: LINT1 trigger: edge
>     lapic3: LINT1 polarity: high
>     lapic7: Routing NMI -> LINT1
>     lapic7: LINT1 trigger: edge
>     lapic7: LINT1 polarity: high
>     MADT: Interrupt override: source 0, irq 2
>     ioapic0: Routing IRQ 0 -> intpin 2
>     MADT: Interrupt override: source 9, irq 9
>     ioapic0: intpin 9 trigger: level
>     ioapic0 <Version 2.0> irqs 0-23 on motherboard
>     ioapic1 <Version 2.0> irqs 32-55 on motherboard
>     ioapic2 <Version 2.0> irqs 192-215 on motherboard
>         cpu0 BSP:
>          ID: 0x00000000   VER: 0x00050014 LDR: 0x00000000 DFR: 0xffffffff
>       lint0: 0x00010700 lint1: 0x00000400 TPR: 0x00000000 SVR: 0x000001ff
>       timer: 0x000100ef therm: 0x00010000 err: 0x000000f0 pmc: 0x00010400
>     wlan: <802.11 Link Layer>
>     snd_unit_init() u=0x00ff8000 [512] d=0x00007c00 [32] c=0x000003ff [1024]
>     feeder_register: snd_unit=-1 snd_maxautovchans=16 latency=5 feeder_rate_min=1 fe
>     eder_rate_max=2016000 feeder_rate_round=25
>     null: <null device, zero device>
>     nfslock: pseudo-device
>     ▒▒▒▒▒▒▒▒▒▒▒
> 
> The odd glitch (▒) is me trying to input after output stops.  I'm accessing the console by TELNETing to the blade chassis, and connecting to the blade console.  I believe this runs at a baud rate of 57600.  Because of this I've modified the following files within mfsBSD:
> 
> etc/ttys (from inside mfsroot.gz)
>     # Serial terminals
>     ttyu0   "/usr/libexec/getty std.57600"  vt100   on secure
>     ttyu1   "/usr/libexec/getty std.57600"  dialup  on secure
>     ttyu2   "/usr/libexec/getty std.57600"  vt100   off secure
>     ttyu3   "/usr/libexec/getty std.57600"  vt100   off secure
>     # Dumb console
>     dcons   "/usr/libexec/getty std.9600"   vt100   off secure
> 
> boot/loader.conf
>     boot_multicons="YES"
>     boot_serial="YES"
>     comconsole_speed="57600"
>     console="comconsole"
> 
> The Java console from the chassis web interface doesn't work on my laptop, but via another server I've been able to grab the attached screenshot.  It states:
>     getty[706]: open /dev/ttyu0: No such file or directory

Seems like it doesn't find any uartX devices during boot.  Can you boot the
box without the console in such a way that you can ssh into it and get a
copy of the dmesg?

-- 
John Baldwin

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