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Revision: 67763
at October 28, 2014 22:42 by blackthorne
Updated Code 
(make sure both devices are unmounted)
# cat /proc/partitions
# cd /dev
# rm sda,sdb
# mknod /dev/sda b    # fill with major and minor devices obtained from /proc/partitions for sdb
# mknod /dev/sdb b 8 0  # verify these major, minor values for sda in /proc/partitions
# partprobe /dev/sda
# hdparm -z /dev/sda
# sfdisk -R /dev/sda
# blockdev --rereadpt /dev/sda
(repeat the last 4 commands for sdb)

Alternatively and to make it permanent:
create the file /etc/udev/rules.d/10-local.rules with the following content:
KERNEL=="sda", NAME="sdb"
KERNEL=="sdb", NAME="sda"

(end of file)

and then: 
# service udev restart
# udevadm control --reload-rules
# udevadm trigger

Revision: 67762
at October 28, 2014 22:39 by blackthorne
Updated Code 
(make sure both devices are unmounted)
cat /proc/partitions
cd /dev
rm sda,sdb
mknod /dev/sda b    # fill with major and minor devices obtained from /proc/partitions for sdb
mknod /dev/sdb b 8 0  # verify these major, minor values for sda in /proc/partitions
partprobe /dev/sda
hdparm -z /dev/sda
sfdisk -R /dev/sda
blockdev --rereadpt /dev/sda
(repeat the last 4 commands for sdb)

Alternatively and to make it permanent:
create the file /etc/udev/rules.d/10-local.rules with the following content:
KERNEL=="sda", NAME="sdb"
KERNEL=="sdb", NAME="sda"

(end of file)

and then
service udev restart
udevadm control --reload-rules
udevadm trigger

Revision: 67761
at October 27, 2014 23:15 by blackthorne
Updated Code 
(make sure both devices are unmounted)
cat /proc/partitions
cd /dev
rm sda,sdb
mknod /dev/sda b    # fill with major and minor devices obtained from /proc/partitions for sdb
mknod /dev/sdb b 8 0  # verify these major, minor values for sda in /proc/partitions
partprobe /dev/sda
hdparm -z /dev/sda
sfdisk -R /dev/sda
blockdev --rereadpt /dev/sda
(repeat the last 4 commands for sdb)

Revision: 67760
at October 27, 2014 23:13 by blackthorne
Initial Code 
(make sure both devices are unmounted)
cat /proc/partitions
cd /dev
rm sda,sdb
mknod /dev/sda b    # fill with major and minor devices obtained from /proc/partitions for sdb
mknod /dev/sdb b 8 0  # verify these major, minor values for sda in /proc/partitions
partprobe /dev/sda
hdparm -z /dev/sda
sfdisk -R /dev/sda
blockdev --rereadpt /dev/sda
(repeaat the last 4 commands for sdb)
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    
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.

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

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

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
linux

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
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