This is an old revision of the document!
Supplied 1PPS and 10 MHz reference, using the cables previously connected to the SRTP2 system. BNC→SMA adaptors were used to make the connection.
Booted into Windows from the onboard PC, configured the network settings to IP 131.217.63.164, NM 255.255.255.128, GW 131.217.63.129. Used “System” in control panel to change computer name (to dbbchb) & DNS lookup to phys.utas.edu.au.
Ran “DBBC control”, answered “y” to reconfiguration. Sampling modules were re-initialised and resumed processing with the 1PPS sync.
Dave Graham provided a current version of the Linux implementation on 2010 May 11. The files were downloaded and placed in a directory on a Linux PC. An empty USB-mounted HDD was used and partitions created to match the first two as described in the READ.ME file provided by Dave. This was done using fdisk
. The first partition was tagged as bootable.
Then ext3 filesystems were installed on each partition using mkfs.ext3
.
The image of the first partition was then copied to the disk:
dd if=dd_sda1 /dev/sdc1
The file boot_sector
was copied to the master boot record:
sudo dd if=boot_sector of=/dev/sdc bs=512 count=1
Then the first partition was mounted at /mnt/tmp
sudo mkdir /mnt/tmp
sudo mount /dev/sdc1 /mnt/tmp
Then find out the disk ID:
ls -l /dev/disk/by-id | grep sdc
Then edit the fstab file in the mounted partition so that the / partition has the ID of /dev/sdc1 and /usr2 is at /dev/sdc2, /data at /dev/sdc3. /etc/fstab then looks like this:
/dev/disk/by-id/usb-WDC_WD75_00AACS-00D6B0_DCA425712418-0:0-part1 / ext3 acl,user_xattr 1 1 proc /proc proc defaults 0 0 sysfs /sys sysfs noauto 0 0 debugfs /sys/kernel/debug debugfs noauto 0 0 usbfs /proc/bus/usb usbfs noauto 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 /dev/disk/by-id/usb-WDC_WD75_00AACS-00D6B0_DCA425712418-0:0-part2 /usr2 ext3 acl,user_xattr 1 2 /dev/disk/by-id/usb-WDC_WD75_00AACS-00D6B0_DCA425712418-0:0-part3 /data ext3 acl,user_xattr 1 2
also edit /mnt/tmp/boot/grub/menu.lst and change the disk ID.
The disk can now be booted from.
Use a fast (133x or better) card with 4 GB or more. We're using a SanDisk Ultra 200x 8 GB.
Mounted the CF on a Linux PC via a USB card reader. Card appears as /dev/sde1
As the card is larger than 4 GB I partitioned it to match Dave's card:
disk /dev/sdb: 4009 MB, 4009549824 bytes 255 heads, 63 sectors/track, 487 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xe7cf73dd Device Boot Start End Blocks Id System /dev/sdb1 * 2 487 3903795 83 Linux
sudo fdisk /dev/sde p d (deleted FAT partition) n p 1 2 487 (added Linux partition) a 1 (made partition bootable) p (should now match Dave's card) w
Then installed an ext3 filesystem:
sudo mkfs.ext3 /dev/sde1
Copy the image onto the CF:
gunzip dbbc_if.gz sudo dd if=dbbc_cf of=/dev/sde
Mount the disk
sudo mount /dev/sde1 /mnt/tmp
Edit /mnt/tmp/fstab
and change first line to read
/dev/sda1 / ext3 noatime,acl,user_xattr 1 1
Edit /mnt/tmp/boot/grub/menu.lst
and replace references to the disk partition to /dev/sda1
:
# Modified by YaST2. Last modification on Fri May 14 13:24:28 UTC 2010 default 0 timeout 8 gfxmenu (hd0,0)/boot/message ##YaST - activate ###Don't change this comment - YaST2 identifier: Original name: linux### title openSUSE 10.3 root (hd0,0) kernel /boot/vmlinuz-2.6.22.5-31-default root=/dev/sda1 vga=0x31a splash=silent showopts initrd /boot/initrd-2.6.22.5-31-default ###Don't change this comment - YaST2 identifier: Original name: failsafe### title Failsafe -- openSUSE 10.3 root (hd0,0) kernel /boot/vmlinuz-2.6.22.5-31-default root=/dev/sda1 vga=normal showopts ide=nodma apm=off acpi=off noresume nosmp noapic maxcpus=0 edd=off 3 initrd /boot/initrd-2.6.22.5-31-default
Unmount, eject and boot on DBBC!
Tim has been having trouble getting the 8 GB card to boot so I got a 4 GB SanDisk Ultra 200x card.
Partition table initially showed
4011 MB, 4011614208 cylinders 128 heads, 63 cylinders/track, 971 cylinders units = cylinders of 8064 * 512 = 4128768 bytes
so in the “extra functionality” mode of fdisk I changed number of cylinders to 487 and number of heads to 255
partition table then could be made to match Dave's.