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| | == SMR Flash Disk Cloning == | | == SMR Flash Disk Cloning == |
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| − | === New in 2011 version === | + | === 2012 version with Xubuntu 12.04=== |
| | | | |
| − | In order to support both VIA Nehemiah and Intel Atom based platforms two kernels must be included in the smr flash image.
| + | ====Clone image to (new) disk==== |
| − | * 2.6.32.20-rtai supports multicore systems and hyperthreading
| + | |
| − | * 2.6.32.20-rtai-up supports single core systems and is optimized to the Via processors
| + | |
| | | | |
| − | A new clone script called <tt>multiclone</tt> must be used when this image is flashed. The script is in the root folder of rt15.
| + | Make a new bootable disk from existing image: |
| | | | |
| − | ==== Flash cloning procedure on rt15 ====
| + | Use '''clone-xubuntu''' and '''clone-databar''' on smr24 (room 011) as root in /root, where available images are in the ''images'' subdirectory. |
| | | | |
| − | Via processors using CF-card flash-disks:
| + | ====Make new boot image==== |
| − | * Log in as root (If you don't know the password abort immediately)
| + | |
| − | * Insert the CF-card in the reader in the front of rt15.
| + | |
| − | * Check the device name the card is given: <tt>tail /var/log/messages</tt>. Usually it is <tt>/dev/sdb</tt>.
| + | |
| − | * Go to the image folder: <tt>cd image</tt>
| + | |
| − | * Locate the image you would like to burn (usually the newest one), for instance: <tt>flash-2011-01-01.tgz</tt>
| + | |
| − | * Start the procedure:
| + | |
| − | root@rt15:~# ../multiclone flash-2011-01-01.tgz /dev/sdb via
| + | |
| | | | |
| − | ''NB: Note the two dots in front of multiclone''
| + | Update image on one of the 4GB sticks, then make new imagefile |
| | | | |
| − | The procedure for cloning Intel Atom images is the same, except <tt>atom</tt> must be stated last in stead of <tt>via</tt> as in:
| + | * put 4GB stick on another linux (with GRUP installed) |
| − | root@rt15:~# ../multiclone flash-2011-01-01.tgz /dev/sdb atom | + | * mount the disk on a local directory as root, e.g.: |
| | + | sudo bash |
| | + | mkdir -p disk |
| | + | mount /dev/sdb1 disk |
| | + | * copy everything on disk to an image file (it takes several minutes): |
| | + | cd disk |
| | + | tar -czf ../image/smrXubuntu20120715.tar.gz * |
| | + | cd .. |
| | + | umount disk |
| | | | |
| − | === Old description ===
| |
| | | | |
| − | Some of the SMR's now have solid-state flash memory disks, instead of the laptop, 2.5" disks used on older models.
| + | ==Old description== |
| | | | |
| − | This wiki page contains some notes describing how to write a bootable flash disk image (Slackware Linux) to a memory card. It assumes a Linux PC with USB flash card reader/writer, available as /dev/sda.
| + | [[old disk cloning procedure]] |
| − | | + | |
| − | The commands below is implemented in this script Clone script. Usage:
| + | |
| − | | + | |
| − | clone <from_file.tar.gz> <to device>
| + | |
| − | <to device> can be both the USB bus (/dev/sdx) or a IDE device (/dev/hdx)
| + | |
| − | | + | |
| − | The script will place a file .cloned-at on the Flash Disk with time information for the cloning.
| + | |
| − | | + | |
| − | If you put the Flash Disk on the IDE bus and the computer will not boot (LILO - Timestamp mismatch) then the MBR on the Flash Disk must be erased as follows:
| + | |
| − | | + | |
| − | dd if=/dev/zero of=/dev/hdx bs=1 count=512
| + | |
| − | Writing an image
| + | |
| − | | + | |
| − | Format the disk, with one large Linux partition:
| + | |
| − | | + | |
| − | sfdisk -L /dev/sda <<EOF
| + | |
| − | ,,L,*
| + | |
| − | EOF
| + | |
| − | Create a filesystem:
| + | |
| − | | + | |
| − | mke2fs /dev/sda1 -L /
| + | |
| − | Mount the new, empty partition:
| + | |
| − | | + | |
| − | mkdir -p /tmp/u
| + | |
| − | mount /dev/sda1 /tmp/u
| + | |
| − | Write a previously created image from flash.tar.gz
| + | |
| − | | + | |
| − | zcat flash.tar.gz |
| + | |
| − | tar --extract --file - --directory /tmp/u --preserve-permissions
| + | |
| − | Create a patched lilo.conf, so that we can run LILO with the flash card mounted via USB. (This won't be necessary if the image written above already contains such a file.)
| + | |
| − | | + | |
| − | patch -o /tmp/u/etc/lilo_usb.conf /tmp/u/etc/lilo.conf <<EOF
| + | |
| − | *** /tmp/u/etc/lilo.conf Tue Nov 4 21:34:44 2003
| + | |
| − | --- lilo_usb.conf Thu Dec 11 11:50:55 2003
| + | |
| − | ***************
| + | |
| − | *** 4,6 ****
| + | |
| − | # Start LILO global section
| + | |
| − | ! boot = /dev/hda
| + | |
| − | message = /boot/boot_message.txt
| + | |
| − | --- 4,7 ----
| + | |
| − | # Start LILO global section
| + | |
| − | ! boot = /dev/sda
| + | |
| − | ! disk = /dev/sda bios=0x80
| + | |
| − | message = /boot/boot_message.txt
| + | |
| − | EOF
| + | |
| − | Run LILO:
| + | |
| − | | + | |
| − | chroot /tmp/u lilo -v -C /etc/lilo_usb.conf
| + | |
| − | All done:
| + | |
| − | | + | |
| − | umount /dev/sda1
| + | |
| − | eject /dev/sda
| + | |
| − | Reading an image
| + | |
| − | | + | |
| − | Mount as above:
| + | |
| − | | + | |
| − | mkdir -p /tmp/u
| + | |
| − | mount /dev/sda1 /tmp/u
| + | |
| − | Read the partition:
| + | |
| − | | + | |
| − | tar --create --file - --directory /tmp/u --one-file-system --exclude lost+found . |
| + | |
| − | gzip > flash.tar.gz
| + | |
| − | or
| + | |
| − | | + | |
| − | tar -zcf - -C /tmp/u --one-file-system --exclude lost+found . > flash.tar.gz
| + | |
| − | All done:
| + | |
| − | | + | |
| − | umount /dev/sda1
| + | |
| − | eject /dev/sda
| + | |
