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RE: [K12OSN] LTSP Lab Slow to Boot



Warren, here is another person that is having the same problems I had with
Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working
or working very slowly. 

Burke, I wish I had an answer for you. I tried for several weeks to get this
same issue resolved on the Ubuntu forums with no luck. In my opinion, the
Edubuntu support is very limited at best.  Ubuntu/Edubuntu also has video
and networking issues that you will sooner or later encounter. A quick
Google will confirm the video issues. These are all directly related to the
design of this distribution. Ubuntu needs to spend less time trying to be
the next Mac or Windows and try making their distribution reliable, stable,
and usable.

I switched to the K12LTSP EL5 and have had no problems with performance or
reliability. Red Hat is a much more reliable and stable platform. Bleeding
edge is for those that have a lot of time and like to play with new stuff.

I recommend you make that move soon too, before you waste a lot of time as I
did on trying to work through bugs that the vendor doesn't have time or
interest in fixing...


 
-----Original Message-----
From: Almquist Burke [mailto:balmquist mindfirestudios com] 
Sent: Friday, September 05, 2008 10:55 PM
To: Support list for open source software in schools.
Subject: Re: [K12OSN] LTSP Lab Slow to Boot

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


On Sep 5, 2008, at 11:52 AM, Crampton, Stephen C. wrote:

>
> From: "Crampton, Stephen C." <cramptons duvalschools org>
> Date: September 5, 2008 11:52:40 AM CDT
> To: <k12osn redhat com>
> Subject: LTSP Lab Slow to Boot
>
>
> My LTSP clients take a long time to boot.  Some of the first ones  
> boot in about a minute, but after about 8 or 9 are up, the others  
> keep saying "No DHCP Offers Received."  If I leave them long  
> enough, they eventually all boot.
>
> Another clue:  It takes over a minute for the first sudo command to  
> accept the root password.
>
Just curious, what kind of hard drive setup are you using??
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From: Crampton, Stephen C. [cramptons duvalschools org]
Sent: Friday, September 05, 2008 12:53 PM
To: k12osn redhat com
Subject: LTSP Lab Slow to Boot

My LTSP clients take a long time to boot.  Some of the first ones boot in
about a minute, but after about 8 or 9 are up, the others keep saying "No
DHCP Offers Received."  If I leave them long enough, they eventually all
boot.

Another clue:  It takes over a minute for the first sudo command to accept
the root password.

Could someone please give me some suggestions?  Here's what I can tell you
about the setup.

Edubuntu 8.04

SWITCH

SMC TigerSwitch 10/100 6128L2


CLIENTS

Lenovo machines with Intel processors


SERVER

mrc Ada:/proc$ cat cpuinfo 
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 107
model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
stepping	: 1
cpu MHz		: 2101.332
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
3dnowprefetch ts fid vid ttp tm stc 100mhzsteps
bogomips	: 4205.03
clflush size	: 64

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 107
model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
stepping	: 1
cpu MHz		: 2101.332
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
3dnowprefetch ts fid vid ttp tm stc 100mhzsteps
bogomips	: 4202.52
clflush size	: 64



mrc Ada:/proc$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:18:f8:0b:40:0d  
          inet addr:192.168.0.254  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::218:f8ff:fe0b:400d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:253305 errors:0 dropped:0 overruns:0 frame:0
          TX packets:309896 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:46515129 (44.3 MB)  TX bytes:301639706 (287.6 MB)
          Interrupt:20 Base address:0xcc00 

eth1      Link encap:Ethernet  HWaddr 00:1d:60:b7:ad:a7  
          inet addr:169.157.241.64  Bcast:169.157.241.255
Mask:255.255.255.0
          inet6 addr: fe80::21d:60ff:feb7:ada7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8010 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1607 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1006100 (982.5 KB)  TX bytes:205995 (201.1 KB)
          Interrupt:19 Base address:0x4800 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1063 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1063 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:56736 (55.4 KB)  TX bytes:56736 (55.4 KB)


mrc Ada:/proc$ cat loadavg
0.09 0.14 0.06 4/626 16166
mrc Ada:/proc$ cat meminfo 
MemTotal:      3107580 kB
MemFree:       1828200 kB
Buffers:         27004 kB
Cached:         418752 kB
SwapCached:          0 kB
Active:         894940 kB
Inactive:       274108 kB
HighTotal:     2227904 kB
HighFree:      1065644 kB
LowTotal:       879676 kB
LowFree:        762556 kB
SwapTotal:     9100780 kB
SwapFree:      9100780 kB
Dirty:              48 kB
Writeback:           0 kB
AnonPages:      723452 kB
Mapped:          71072 kB
Slab:            37780 kB
SReclaimable:    17272 kB
SUnreclaim:      20508 kB
PageTables:      10208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  10654568 kB
Committed_AS:  2302184 kB
VmallocTotal:   114680 kB
VmallocUsed:      8420 kB
VmallocChunk:   106148 kB
mrc Ada:/proc$ 


mrc Ada:/proc$ cat modules 
snd_rtctimer 4640 1 - Live 0xf8fff000
binfmt_misc 12808 1 - Live 0xf9040000
via 43648 2 - Live 0xf9010000
drm 82452 3 via, Live 0xf902a000
rfcomm 41744 2 - Live 0xf9004000
l2cap 25728 13 rfcomm, Live 0xf8fdb000
bluetooth 61156 4 rfcomm,l2cap, Live 0xf8fe6000
ppdev 10372 0 - Live 0xf8add000
cpufreq_stats 7104 0 - Live 0xf8ab7000
cpufreq_powersave 2688 0 - Live 0xf8867000
cpufreq_conservative 8712 0 - Live 0xf8ad9000
cpufreq_userspace 5284 0 - Live 0xf8ac5000
cpufreq_ondemand 9740 0 - Live 0xf8ad0000
freq_table 5536 2 cpufreq_stats,cpufreq_ondemand, Live 0xf8ac2000
video 19856 0 - Live 0xf8aca000
output 4736 1 video, Live 0xf8aba000
sbs 15112 0 - Live 0xf8abd000
sbshc 7680 1 sbs, Live 0xf8a97000
container 5632 0 - Live 0xf8a9a000
dock 11280 0 - Live 0xf8ab3000
battery 14212 0 - Live 0xf8aae000
iptable_filter 3840 0 - Live 0xf884e000
ip_tables 14820 1 iptable_filter, Live 0xf8a9d000
x_tables 16132 1 ip_tables, Live 0xf8a58000
ac 6916 0 - Live 0xf8a62000
parport_pc 36260 0 - Live 0xf8aa4000
lp 12324 0 - Live 0xf8a5d000
parport 37832 3 ppdev,parport_pc,lp, Live 0xf8a8c000
loop 18948 0 - Live 0xf8a3d000
af_packet 23812 4 - Live 0xf8a85000
ipv6 267780 64 - Live 0xf8b37000
usbhid 31872 0 - Live 0xf8a7c000
hid 38784 1 usbhid, Live 0xf8a71000
usblp 15872 0 - Live 0xf89f2000
evdev 13056 4 - Live 0xf8a2b000
snd_hda_intel 344728 5 - Live 0xf8ae1000
snd_pcm_oss 42144 0 - Live 0xf8a65000
snd_mixer_oss 17920 1 snd_pcm_oss, Live 0xf8a32000
snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss, Live 0xf8a43000
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm, Live 0xf89fb000
snd_hwdep 10500 1 snd_hda_intel, Live 0xf89f7000
snd_seq_dummy 4868 0 - Live 0xf89dc000
snd_seq_oss 35584 0 - Live 0xf8a21000
snd_seq_midi 9376 0 - Live 0xf89e0000
amd64_agp 13444 0 - Live 0xf89ed000
snd_rawmidi 25760 1 snd_seq_midi, Live 0xf89e5000
via_agp 11136 1 - Live 0xf8983000
button 9232 0 - Live 0xf89d3000
snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi, Live 0xf8987000
pcspkr 4224 0 - Live 0xf8980000
shpchp 34452 0 - Live 0xf89c9000
pci_hotplug 30880 1 shpchp, Live 0xf896f000
agpgart 34760 3 drm,amd64_agp,via_agp, Live 0xf898c000
snd_seq 54224 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event,
Live 0xf89ba000
snd_timer 24836 3 snd_rtctimer,snd_pcm,snd_seq, Live 0xf8978000
snd_seq_device 9612 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq, Live 0xf8847000
snd 56996 23
snd_rtctimer,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_s
eq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live
0xf8952000
soundcore 8800 1 snd, Live 0xf893a000
k8temp 6656 0 - Live 0xf889b000
ext3 136712 1 - Live 0xf8997000
jbd 48404 1 ext3, Live 0xf8962000
mbcache 9600 1 ext3, Live 0xf882b000
sr_mod 17956 0 - Live 0xf8941000
cdrom 37408 1 sr_mod, Live 0xf8947000
sg 36880 0 - Live 0xf8926000
sd_mod 30720 3 - Live 0xf8931000
pata_acpi 8320 0 - Live 0xf889f000
pata_via 13316 0 - Live 0xf8921000
ata_generic 8324 0 - Live 0xf8878000
r8169 32900 0 - Live 0xf8917000
uhci_hcd 27024 0 - Live 0xf8893000
via_rhine 26632 0 - Live 0xf888b000
mii 6400 1 via_rhine, Live 0xf884b000
ehci_hcd 37900 0 - Live 0xf8880000
usbcore 146028 5 usbhid,usblp,uhci_hcd,ehci_hcd, Live 0xf88f2000
sata_via 12420 2 - Live 0xf8862000
libata 159344 4 pata_acpi,pata_via,ata_generic,sata_via, Live 0xf88ca000
scsi_mod 151436 4 sr_mod,sg,sd_mod,libata, Live 0xf88a4000
thermal 16796 0 - Live 0xf885c000
processor 36872 1 thermal, Live 0xf8869000
fan 5636 0 - Live 0xf8844000
fbcon 42912 0 - Live 0xf8850000
tileblit 3456 1 fbcon, Live 0xf8833000
font 9472 1 fbcon, Live 0xf882f000
bitblit 6784 1 fbcon, Live 0xf8826000
softcursor 3072 1 bitblit, Live 0xf8829000
fuse 50708 19 - Live 0xf8836000
mrc Ada:/proc$ 






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