Red Hat Bugzilla – Bug 14268
default hdparm settings cause SEVERE HARDDISK CORRUPTION
Last modified: 2008-05-01 11:37:56 EDT
After installing beta3 on an old 486 laptop and playing around a bit the
entire install started falling apart. Every sector touched (even if just to
update the last access time) was corrupted.
I was totally shocked. This is so BAD I don't have any words for it. Why
are there any settings enabled by default in /etc/sysconfig/harddisks, if
this was safe don't you think the kernel would enable them by default
The enabling of 32bit io + lookahead hoses the toshiba hd in this toshiba
laptop for sure.
Please fix this ASAP, preferrably before beta4 and absolutly for beta5.
Possible fixes: don't put anything enabled in /etc/sysconfig/harddisks
and/or rename /etc/sysconfig/harddisks to /etc/sysconfig/harddisks.example
Also having one setting for all HD's is bad IMHO, but this is more a
Just saw that 32bit_io is already turned of according to bug 13730 , could you
also please turn the look ahead of to be sure. (I haven't tried which one
actually causes the problem)
*** This bug has been marked as a duplicate of 13730 ***
Please note that that bug only talks about the 32bit io, while read_ahead is
also enabled by default. Is this disabled (or left as the kernel has set it) by
default now too?