Bellman
Bellman is a Mini-ITX server / desktop
Bellman functions as a server, but also has an LCD monitor / keyboard / mouse so it can function as a desktop / web browser machine as well. It is on a UPS and lives in my electronics lab.
History
2013-12-29 - returned from X-Mas and discovered Bellman won't boot. Snarks about a degraded RAID. Darn.
2013 Mar - Installed Linux Mint 14 so that I could use Makerware with my new Replicator 2
2013 Jan - Seagate Barracuda 2TB Green drive died. ST2000DL003 S/N 5YD77CTE Replaced with a Barracuda 2TB mirror
2011 Dec - Been doing PostGIS experiments so I upgraded it.
2010 Jan - I just started this section but I have had this machine online for at least a couple years now.
2013-12-29 Rescue from boot fail
I no longer need a desktop environment on the small server, because I moved my main desktop next to the 3D printer. So I put Debian back on the server again. So I am going to try a Debian rescue image.
Diagnosis
Step 1. Build rescue thumbdrive. Download from http://debian.osuosl.org/ and copy image to thumbdrive
sudo cp debian-live-7.2-amd64-rescue.iso /dev/sdX sudo sync sudo eject /dev/sdX
where X is the appropriate drive letter, do NOT use the wrong letter!
Step 2. Boot Bellman with the thumbdrive
Step 3. Look around
Using hdparm -i
- sda Vertex SSD S/N OCZ-9UDI676M56Z4IR8P
- sdb Seagate 2TB ST2000DM001-9YN164 S/N Z240BVP5
- sdc Seagate 2TB ST2000DM001-9YN164 S/N Z240A0H1
- sdd rescue drive
# fdisk -l /dev/sda Disk /dev/sda: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0009c7c9 Device Boot Start End Blocks Id System /dev/sda1 * 2048 218460159 109229056 83 Linux /dev/sda2 218462206 234440703 7989249 5 Extended /dev/sda5 218462208 234440703 7989248 82 Linux swap / Solaris
sdb and sdc don't have partition tables as they are used in a RAID (see 2013 Jan entry)
See LVM page
cat /proc/mdstat
Personalities : [raid1]
md126 : active raid1 sda[1]
117218240 blocks [2/1] [_U]
md127 : active raid1 sdb[0] sdc[1]
1953514496 blocks [2/2] [UU]
unused devices: <none>
mdadm --detail /dev/md126
/dev/md126:
Version : 0.90
Creation Time : Thu Feb 21 06:23:36 2013
Raid Level : raid1
Array Size : 117218240 (111.79 GiB 120.03 GB)
Used Dev Size : 117218240 (111.79 GiB 120.03 GB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 126
Persistence : Superblock is persistent
Update Time : Thu Feb 21 06:30:49 2013
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
UUID : 9f48e120:81a0f612:edd8d016:611227ea
Events : 0.12
Number Major Minor RaidDevice State
0 0 0 0 removed
1 8 0 1 active sync /dev/sda
mdadm --detail /dev/md127
/dev/md127:
Version : 0.90
Creation Time : Mon Jan 7 04:12:45 2013
Raid Level : raid1
Array Size : 1953514496 (1863.02 GiB 2000.40 GB)
Used Dev Size : 1953514496 (1863.02 GiB 2000.40 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 127
Persistence : Superblock is persistent
Update Time : Mon Dec 30 17:21:21 2013
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
UUID : 462f6c0c:68770b3a:b268e686:64f77a36
Events : 0.131
Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
1 8 32 1 active sync /dev/sdc
Looks like there are 2 RAID's, and md126 is the broken one. It should be the SSD and something else? Time to open the box and see what's in there.
fdisk /dev/md126
Command (m for help): p
Disk /dev/md126: 120.0 GB, 120031477760 bytes
255 heads, 63 sectors/track, 14592 cylinders, total 234436480 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009c7c9
Device Boot Start End Blocks Id System
/dev/md126p1 * 2048 218460159 109229056 83 Linux
/dev/md126p2 218462206 234440703 7989249 5 Extended
/dev/md126p5 218462208 234440703 7989248 82 Linux swap / Solaris
Command (m for help):
Conclusion - I was planning on doing RAID mirror and never got the second drive installed. I think I might have used it in Stellar instead. Steller's drive failed and needed immediate replacement. Something failed on the SSD and now it's not booting, but this has nothing to do with the hardware from what I can tell. It complains about the RAID missing a drive but that's not new.
2014 Jan 01 rebuild
Do as in the Linux Mint section below
Also note:
PRESERVE MYSQL!!
/etc/hdparm.conf
2013 Jan data mirror build
apt-get install mdadm lvm2 mdadm --create --metadata=0.90 --level=mirror --raid-devices=2 /dev/md0 /dev/sdb /dev/sdc cat /proc/mdstat pvcreate /dev/md0 vgcreate vg_mirror /dev/md0 lvcreate --verbose --extents 100%FREE -n lv_mirror vg_mirror mkfs.ext4 /dev/vg_mirror/lv_mirror mount /dev/vg_mirror/lv_mirror /green dd if=/dev/zero of=/green/swapfile1 bs=1024 count=1048576
2013 Mar Linux Mint rebuild
Had to install mdadm and lvm2 but then it recognized the LVM drives All I had to do was mount the RAID on /green.
sudo apt-get install synaptic nfs-kernel-server ssh mysql-server phpmyadmin ntp winbind smartmontools netatalk
Re-install dropbox
Re-install squeezeboxserver from Logitech. http://bellman:9000/
Set up cups again
Copy over /etc/exports file
Need AFP support for Apple Timemachine. (netatalk)
December 2011 upgrade
Bellman had an Intel Little Falls Atom 230 mini-itx main board + 2GB RAM until Dec 2011. Bellman used to be an Athlon desktop system, I recycled the name because I like it.
Hardware
- ASRock E350M1/USB3 AMD E-350 APU (1.6GHz, Dual-Core) AMD A50M Hudson M1 Mini ITX Motherboard $125
- Kingston 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Desktop Memory Model KVR1333D3N9K2/8G $35
- OCZ Vertex 3 120GB S/N OCZ-9UDI676M56Z4IR8P
- Case: brand name?? need to look it up. Cost about $50 250W power supply
- /dev/sdb Seagate Barracuda 2.0TB Model=ST2000DM001-9YN164, FwRev=CC4B, SerialNo=Z240BVP5
- /dev/sdc Seagate Barracuda 2.0TB Model=ST2000DM001-9YN164, FwRev=CC4B, SerialNo=Z240A0H1
- in USB enclosure: "Green" WD Caviar 500 GB drive. WDC WD5000AACS-00ZUB0 s/n WD-WCASU2227103
Video drivers
The ASRock card has an onboard AMD Radeon HD 6310 graphics chip. Therefore I need to follow these instructions: http://wiki.debian.org
% lspci -v | grep VGA 00:01.0 VGA compatible controller: ATI Technologies Inc Device 9802 (prog-if 00 [VGA controller])
Flags: bus master, VGA palette snoop, 66MHz, medium devsel, latency 64
Dang but the aticonfig --initial command fails, unsupported hardware!
Maybe getting the driver from AMD support page will do it but I don't have time right now to deal with this.
See http://www.sensicomm.com/main/linux/acer_5253/index.shtml
Operating system
- Debian 7.3
- Was Linux Mint 14
- Was Debian 6.0
fstab
# Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda1 during installation UUID=e9044e74-63c5-4a70-ba4c-b702aa1bca82 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation UUID=490755fc-5ba5-4ac0-8905-ee8cc560abba none swap sw 0 0 # tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0 tmpfs /var/tmp tmpfs defaults,noatime,mode=1777 0 0 #tmpfs /var/run tmpfs defaults,noatime,mode=755 0 0 #tmpfs /var/lock tmpfs defaults,noatime,mode=1777 0 0 #tmpfs /var/log tmpfs defaults,noatime,mode=755 0 0 # # swap was on /dev/sda2 during installation #UUID=54eec143-aa53-40c5-b91a-d8cc69d39f11 none swap sw 0 0 /dev/vg_mirror/lv_mirror /green ext4 noatime,user_xattr 0 0 #/green/swapfile1 none swap sw 0
Software
Media server: it hosts my music collection. I keep the files in MP3 format, having transferred them from my CD's using grip. Music collection
File server: I keep my home directory here and NFS mount it on the desktop machine Raven. Bellman also runs Samba so that my laptop can access files on it.
I edit files with emacs23
Backups
- Copy the stuff on the system drive (SSD) to the RAID mirror frequently.
- Dump SQL to a file on RAID.
- Save user data to cloud someplace
