Arch Linux

lkraemer

Member

Registered: 2012-02-18

Posts: 37

[SOLVED] - Arch Boot Error: Unable to find Root Device /dev/sdb1

I had Arch running perfectly using /dev/sdb1 (versus Disk Label or UUID) and decided to do a update.  After the Update I can't boot
to a running system, and I get this error message:

ERROR: Unable to find root device /dev/sdb1 
You are being dropped into a recovery shell.

Is there an easy way to convert to UUID or Disk Label since the latest Upgrade doesn't allow me to continue to use /dev/sdb1 ??
I'd prefer not to have to rebuild both USB Flash Drives to get functional systems.

Any Help is greatly appreciated.

Suggestions?

Larry

Last edited by lkraemer (2012-02-21 15:14:02)

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] - Arch Boot Error: Unable to find Root Device /dev/sdb1

Check your grub and read https://wiki.archlinux.org/index.php/UUID#By-uuid

Edit:
https://bbs.archlinux.org/viewtopic.php … 0#p1059160
https://bbs.archlinux.org/viewtopic.php?pid=1059338
https://bbs.archlinux.org/viewtopic.php?id=135288

Last edited by karol (2012-02-21 01:07:21)

lkraemer

Member

Registered: 2012-02-18

Posts: 37

Re: [SOLVED] - Arch Boot Error: Unable to find Root Device /dev/sdb1

Karol,
Thanks.  I followed the instructions and both USB Flash Drives are booting and working.  WHEW!
I am sure glad I didn't have to start from scratch.

Larry

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] - Arch Boot Error: Unable to find Root Device /dev/sdb1

Please remember to mark the thread as solved.