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Replace /dev/sda with /dev/sdb device name assignment

/ Published in: Bash
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this can obviously be easily adapted to any other device names. Some commands in here are redundant but all together are more likely to work.

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  1. (make sure both devices are unmounted)
  2. # cat /proc/partitions
  3. # cd /dev
  4. # rm sda,sdb
  5. # mknod /dev/sda b    # fill with major and minor devices obtained from /proc/partitions for sdb
  6. # mknod /dev/sdb b 8 0  # verify these major, minor values for sda in /proc/partitions
  7. # partprobe /dev/sda
  8. # hdparm -z /dev/sda
  9. # sfdisk -R /dev/sda
  10. # blockdev --rereadpt /dev/sda
  11. (repeat the last 4 commands for sdb)
  12.  
  13. Alternatively and to make it permanent:
  14. create the file /etc/udev/rules.d/10-local.rules with the following content:
  15. KERNEL=="sda", NAME="sdb"
  16. KERNEL=="sdb", NAME="sda"
  17.  
  18. (end of file)
  19.  
  20. and then: 
  21. # service udev restart
  22. # udevadm control --reload-rules
  23. # udevadm trigger

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