after unplug and plug usb, /dev/sd* is changed!

[muzehyun]

BT3 is installed in USB
And I made them persistent.
/dev/sdb1: BT3
/dev/sdb2: has "/changes" folder

syslinux.cfg has "changes=/dev/sdb2" option

Everything is okay except one thing..
When I unplug usb and plug them again, device name is always changed.
from /dev/sdb to /dev/sdc

I did umount for sdb1 and sdb2 before unplugging.
then.. after replugging, BT3 is not working properly

for example, when I run vi
bash: /usr/bin/vi: cannot execute binary file

1. Is there any way to change /dev/sdc to /dev/sdb?
1. Is there any way to set changes=/dev/sdb2 to changes=/dev/sdc2 after boot?

Thank you

Sean

[imported_wyze]

BT3 is installed in USB
And I made them persistent.
/dev/sdb1: BT3
/dev/sdb2: has "/changes" folder

syslinux.cfg has "changes=/dev/sdb2" option

Everything is okay except one thing..
When I unplug usb and plug them again, device name is always changed.
from /dev/sdb to /dev/sdc

I did umount for sdb1 and sdb2 before unplugging.
then.. after replugging, BT3 is not working properly

for example, when I run vi
bash: /usr/bin/vi: cannot execute binary file

1. Is there any way to change /dev/sdc to /dev/sdb?
1. Is there any way to set changes=/dev/sdb2 to changes=/dev/sdc2 after boot?

Thank you

Sean

Keyword.... fstab

[crweedon]

if you're running BT3 off of usb then you shouldn't be unplugging said usb to begin with

[algemy]

Keyword.... fstab

I am having the same problem with the device name changing everytime I reboot. So when you said to look at fstab, what exactly I am supposed to do. I am a newbie at linux so I still learning.

I'll check the file later.

[algemy]

On http://ubuntuforums.org/showthread.php?t=283131 says that for removable media, you can identify the device by udev, volume label, or uuid.

The following commands are used to obtain these information:

ls /dev/disk/by-label -lah
ls /dev/disk/by-id -lah
ls /dev/disk/by-uuid -lah

I haven't try this yet, but I figure I would post the info for anyone else trying to work on it. So based on this information, on my fstab file, I should say something like: everytime you see a removable media with LABEL=volume_label mounted to /mnt/sda2

If I am wrong on my assumption, please correct me.