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Xen + lvm on Dell PowerEdge 2950 with Debian 4.0r3 AMD64
http://technobounce.com/index.php?entry=entry080319-165200
For this install I broke the existing virtual disks on the raid and created a 10G disk for the system and created a second virtual disk with the remaining space allocated for xen servers.
Create a 3T lvm partition: myxenserver:~# fdisk -l /dev/sdb
Disk /dev/sdb: 3737.2 GB, 3737292636160 bytes 255 heads, 63 sectors/track, 454366 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System myxenserver:~# parted /dev/sdb mklabel gpt Information: Don't forget to update /etc/fstab, if necessary.
myxenserver:~# parted /dev/sdb print
Disk /dev/sdb: 3737GB Sector size (logical/physical): 512B/512B Partition Table: gpt
Number Start End Size File system Name Flags
Information: Don't forget to update /etc/fstab, if necessary.
Disk /dev/sdb: 3737GB Sector size (logical/physical): 512B/512B Partition Table: gpt
Number Start End Size File system Name Flags 1 17.4kB 3737GB 3737GB ext2
Information: Don't forget to update /etc/fstab, if necessary.
myxenserver:~# vgcreate xen /dev/sdb1 Volume group "xen" successfully created
myxenserver:~# vgdisplay --- Volume group --- VG Name xen System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 1 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 3.40 TB PE Size 4.00 MB Total PE 891039 Alloc PE / Size 0 / 0 Free PE / Size 891039 / 3.40 TB VG UUID kZ260M-qv13-7unz-Rwd8-TfbM-qIUF-7PSHaB
edit your /etc/xen-tools/xen-tools.conf to relect your local setting, the ones I use are : #start xen-tools.conf lvm = xen
size = 4Gb # Disk image size. memory = 256Mb # Memory size swap = 128Mb # Swap size fs = ext3 # use the EXT3 filesystem for the disk image. dist = etch # Default distribution to install. image = sparse # Specify sparse vs. full disk images.
now, edit /etc/xen/xend-config.sxp and uncomment: (network-script network-bridge) and I set: (dom0-cpus 2)
now restart xen:
/etc/init.d/xend
now to create a xen instance xen-create-image --hostname=xensever01 --size=300G --ip=10.1.2.100 -netmask=255.255.255.0
start the xen instance: xm create /etc/xen/xenserver01.cfg
and you can now connect to it: xm console xensever01
Log in with root, no password should be set at this time, so now would be a good time to set it.
Congrats! you now have a xen server up and running ready to get what ever software you want. ]]>First Snow!
http://technobounce.com/index.php?entry=entry071122-130718
In the output, you should see something like this: Mode 0x036e: 1680x1050 (+6720), 24 bits
Take that mode for your vga= on your kernel line: title Debian GNU/Linux, kernel 2.6.21-2-686 root (hd0,0) kernel /boot/vmlinuz-2.6.21-2-686 root=/dev/sda1 ro vga=0x036e initrd /boot/initrd.img-2.6.21-2-686 savedefault
then, when you reboot, it should come up with the correct resolution. ]]>Apache2 + php on Debian Lenny
http://technobounce.com/index.php?entry=entry070912-111638
apt-get update apt-get install apache2
apache2 should start now, you can check to make sure like so: lsof -i:80
Now to install the php module for apache2:
apt-get install libapache2-mod-php5
apt should enable the module for you, you can always check to make sure: a2enmod php5
Now, we have to restart our server: /etc/init.d/apache2 stop /etc/init.d/apache2 start
To verify, you can put a php file in /var/www , say /var/www/test.php
Thats it. ]]>MD Ate My Acid
http://technobounce.com/index.php?entry=entry070910-004742
Take a listen ]]>On my way
http://technobounce.com/index.php?entry=entry070729-183407
]]>Sad day! No, wait, disaster avoided!
http://technobounce.com/index.php?entry=entry070502-132732
May 2 13:22:10 proto kernel: ata2: no sense translation for status: 0x40 May 2 13:22:10 proto kernel: ata2: status=0x40 { DriveReady } May 2 13:22:10 proto kernel: sd 1:0:0:0: SCSI error: return code = 0x08000002 May 2 13:22:10 proto kernel: sdb: Current: sense key: Aborted Command May 2 13:22:10 proto kernel: Additional sense: No additional sense information May 2 13:22:10 proto kernel: end_request: I/O error, dev sdb, sector 501481551 May 2 13:23:55 proto kernel: ata2: no sense translation for status: 0x40 May 2 13:23:55 proto kernel: ata2: status=0x40 { DriveReady } May 2 13:23:55 proto kernel: sd 1:0:0:0: SCSI error: return code = 0x08000002 May 2 13:23:55 proto kernel: sdb: Current: sense key: Aborted Command May 2 13:23:55 proto kernel: Additional sense: No additional sense information May 2 13:23:55 proto kernel: end_request: I/O error, dev sdb, sector 0 May 2 13:24:25 proto kernel: ata2: no sense translation for status: 0x40 May 2 13:24:25 proto kernel: ata2: status=0x40 { DriveReady } May 2 13:24:25 proto kernel: sd 1:0:0:0: SCSI error: return code = 0x08000002 May 2 13:24:25 proto kernel: sdb: Current: sense key: Aborted Command May 2 13:24:25 proto kernel: Additional sense: No additional sense information May 2 13:24:25 proto kernel: end_request: I/O error, dev sdb, sector 0
Already tried to do a fsck on it, no luck with that. Hm, maybe it's a bad cable..
UPDATE: Turns out, yes, it was the cable. I replaced the sata cable with a different one, the one that was in there had 90deg angel connectors and didn't really seem like they fit too well. It was all I had at the time I put the drive in. But, with a new cable the drive is nice and happy. whew!
Time to do a backup. ]]>Bring your own big wheel stop animation!
http://technobounce.com/index.php?entry=entry070410-123741
Bring Your Own Big Wheel . I took all of these photos with my D200, then put them all together in this nifty movie. It covers 3 of the races that went on that day and is made up of almost 600 individual pictures!]]>Rub your body remix
http://technobounce.com/index.php?entry=entry070317-110215
track. He's put up the ableton file for it as well. This is the first part of it I just got done and thought I'd share. I swear I will finish some of these tracks some day!]]>SMOKE!!
http://technobounce.com/index.php?entry=entry070131-124548
flash, this thing is great!
Here's a test shot from the first day with it.
If you want to see a hi-res version check here.]]>
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