On 11/15/2012 09:42 PM, alex lupu wrote: > Hello, > > In trying to catch up with the Joneses, I built a new > machine around the latest i7 Ivy Bridge processor. > As a quick and dirty start, I just moved the BLFS hard drive from my > "standard" machine, intel E8400, kernel 3.6.1, to the new box. > The two machines have the same basic, simple configuration, > a hard drive (=< 160G) and an optical one. > Obviously, I didn't expect instant smooth sailing on such a > heavy-handed "upgrade" but this really has hit me hard: > > << > VFS: Cannot open root device "sda3" or known-block(0,0): > error -6 > Please append a correct "root=" boot option: > here are the available partitions: > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > Pid: 1, comm: swapper/0 Not tainted 3.6.1 #1 > Call trace: > [.......] ? panic ... > ... >>> > > Comments: > 1. My little DOS partition (sda1) works as nicely as before. > 2. A Knoppix CD (7.0.4, kernel 3.4.9) works just fine on the > new machine too. Most discouraging. > An 'fdisk -l' shows my drive as clean as before (as "sda3"). > 3. I tried another drive (which works identically on my old > E8400 rig) and it exhibits the same behavior on the new one. > 4. I went through a same type nightmare a few years ago under kinda > similar circumstances. The kernel developers had changed drive > names on me - from, say "hda3" to "sda3" so when I connected the > "old" hda hard drive on a new kernel similar panic ensued. > I fondly remember everybody got involved to help me (including > Mr. Beekmans) and finally we got it solved (after a few drops of blood). > > Keeping the similarity intact, _in retrospect_, a simple kick > in my behind (a "hint", as they say) should've been enough: > "Hey dummy! Why don't you watch the 11 o'clock news !?: > _everybody_ knows that the drive names have changed from > "hd.." to "sd.." (for your own good!) !!!" > 5. Consequently, if a generous soul can just offer a similar hint, > in this instance, I'll be much appreciative: > "Hey dummy! Don't you know that when you move to Ivy Bridge > and H77, you have to change/add in 'xxxxxx' (kernel configuration?) > this and that for your system to boot up at all!!!" > Then I hope to be able to do my own heavy lifting from there on. > > Thank you, > -- Alex >
If your kernel was optimized for one machine, then your issue is expected. I suspect your SATA/ATA controller is different on new than on old machine and it isn't built into your kernel. -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
