Hi,
my computer often (not all the time) has problem at booting ...
When it happen, it boot to emergency mode...
(after I install new updates, then this problem occurs regularly)
The message that I get, when the problem come, are (approximately):
========================
Welcome to emergency mode! after logging in , type "journalctl -xb" to view
system log .......
SError: {RecovRecovCom PHYRdyChg CommWake 10B8B DevExch }
failed commend : READ DMA
.......
exception Emask 0x10 SAct 0x0 Serr 0x40d0002 action 0x0 frozen
SError: {RecovCom PHYRdyCh CommWake 10808 DevExch}
status: {DRY}
exception Emask 0x10 SAct 0x0 Serr 0x40d0002 action 0x0 frozen
...........
status {Busy}
.............
failed command : READ DMA
....
Status {DRY}
========================
In this link
http://ubuntuforums.org/archive/index.php/t-1034762.html
I read that this problem happen frequently; and it is not sure if is a HD
problem or a SW problem...
Someone suggest to disable the ports of all bus not SATA in the bios...
In this other link:
http://ubuntuforums.org/showthread.php?t=1034762
someone said that, on Ubuntu, he was able to solve the problem changing
options in the file /etc/modprobe.d/options
= = = = =
It's Kernel bug on ata acpi
Put "options libata noacpi=1" on /etc/modprobe.d/options
= = = = =
In my case surly the problem is connected with the HD; this because,
trying to change HD, the problem disappeared only re-plugging the caves of
the HD.
- - - - - - - - -
I would like have some suggestion about this problem
thank you
regard
Angelo