TS-7670 MicroSD Backup
|Click to download the latest 4GB SD card image.|
Using another Linux workstation
If you do not have an SD card that can boot to the initramfs, you can download the latest SD card image and rewrite this from a Linux workstation. A USB MicroSD adapter can be used to access the card. First, you must find out which /dev/ device corresponds with your USB reader/writer.
Step 1 Option 1 (lsblk)
Newer distributions include a utility called "lsblk" which allows simple identification of the intended card:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdY 8:0 0 400G 0 disk ├─sdY1 8:1 0 398G 0 part / ├─sdY2 8:2 0 1K 0 part └─sdY5 8:5 0 2G 0 part [SWAP] sr0 11:0 1 1024M 0 rom sdX 8:32 1 3.9G 0 disk ├─sdX1 8:33 1 7.9M 0 part ├─sdX2 8:34 1 2M 0 part ├─sdX3 8:35 1 2M 0 part └─sdX4 8:36 1 3.8G 0 part
In this case the SD card is 4GB, so sdX is the target device. Note that on your system, sdX will not be a real device, it could be sda, sdb, mmcblk0, etc. Technologic Systems is not responsible for any damages cause by using the improper device node for imaging an SD card.
Step 1 Option 2 (dmesg)
After plugging in the device, you can use dmesg to list
scsi 54:0:0:0: Direct-Access Generic Storage Device 0.00 PQ: 0 ANSI: 2 sd 54:0:0:0: Attached scsi generic sg2 type 0 sd 54:0:0:0: [sdX] 3862528 512-byte logical blocks: (3.97 GB/3.84 GiB)
In this case, sdXc is shown as a 3.97GB card. Note that on your system, sdX will not be a real device, it could be sda, sdb, mmcblk0, etc. Technologic Systems is not responsible for any damages cause by using the improper device node for imaging an SD card.
Once you have the target /dev/ device you can use "dd" to backup/restore the card. To restore the board to stock, or rewrite to the latest SD image:
wget https://files.embeddedarm.com/ts-arm-sbc/ts-7670-linux/binaries/ts-images/ts7670_7400v2-latest.dd.bz2 # Specify your block device instead of /dev/sdX # Note that this is a whole disk image, so use /dev/sdX instead of # using /dev/sdX1 bzcat ts7670_7400v2-latest.dd.bz2 | dd conv=fsync bs=4M of=/dev/sdX
To take a backup of your entire SD card, you can switch the input file and the output file:
# Specify your block device instead of /dev/sdX dd if=/dev/sdX conv=fsync bs=4M | bzip2 > backup.dd.bz2