Ubuntu Server 14.04.2 does not work by "Expert mode Installation"

Asked by Youhei Tooyama on 2015-02-28

Ubuntu Server 14.04.2 does not work by "Expert mode Installation" mode.
but This problem does not occur in 14.04.1 and 14.04.0 .

something errors on boot...
mount: mounting /dev/sda on /media failed: Invalid argument
umount: can't umount /media: Invalid argument

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Last query:
2015-02-28
Last reply:
2015-03-15
Launchpad Janitor (janitor) said : #1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

DK (dk-ubuntu-6) said : #2

Saw the same message - 14.04.2 server installer got stuck with the above.
However, I left it sitting there long enough, and eventually, after a bunch more attempts to mount things that don't exist, it booted and installed without further trouble.
Installing on Thinkpad T43 if it helps.

DK (dk-ubuntu-6) said : #3

p.s. Disabling extra devices in BIOS boot device priority list seems to fix this sticking point in my case.
BIOS > Config > Floppy Drives > Legacy Floppy Drives > Disable

Youhei Tooyama (ytooyama) said : #4

Ubuntu Server 14.04.3 does not work by "Expert mode Installation"

Adauto Serpa (adautoserpa) said : #5

Ubuntu Server 14.04.3 does not work by "Expert mode Installation" with me too

Tony Whelan (tony-whelan) said : #6

Selected expert mode in 14.04.3 but nothing happened - it runs in normal mode instead. Very frustrating.

Jeffrey Guan (double12gzh) said : #7

this also dose not work on 14.04.4.