On 20/12/12 20:46, Felix Miata wrote:
On 2012-12-20 11:03 (GMT+0200) ellanios82 composed:
/dev/sda4: ERROR: cannot open `/dev/sda4' (No such file or directory)
- my idea was that Linux was proud to be kind to older hardware . . . that After kernel 3.4 it is not possible to boot from a SATA HD while having an internal 40 wire ribbon-cable {i think 40 } PATA HD for back-up is no-longer possible, is, for me, a serious concern.
Such a basic ability to mount a 40-wire PATA 2nd drive would seem important enough to be worth fixing fast.
Finally you told us the cause. Any PATA device a 40 wire cable fits can have an 80 wire replace it, and if it's a HD made in the past 10+ years, should, as the 80 wire cable will not only be your solution, but will allow your PATA device to run at the full speed it is capable of. To continue to use 40 wire will handicap speed, and require a special cmdline parameter to force the maximum speed attempted by the driver down to a fraction of the device's maximum to prevent problems like yours. The UDMA5 spec requires 80 wire. You're lucky if your 3.4 kernel hasn't caused data corruption on your PATA HD while using a 40 wire cable.
For chrissake! What does the size of the cable - 40-wire or 80-wire - have anything to do with the man's problem? In his first post the man wrote: QUOTE kernel-default-3.6.10-15.1.i586 does not allow me to mount /dev/sda kernel 3.4.6-2.10-desktop DOES allow mounting of /dev/sda & sees /dev/sda OK UNQUOTE Note what the second sentence states: "kernel 3.4.6-2.10 DOES allow mounting...". Kernel 3.4.6-2.10 was released on 8 September THIS year - ie, 2012. Nothing to do with having a hard disc drive 10+ years old! Yes, a 40-wire cable will NOT give him the full UDMA for his HDD in question -- but this is NOT about which he is asking the question. And "You're lucky if your 3.4 kernel hasn't caused data corruption on your PATA HD while using a 40 wire cable." is nothing but a furphy. Why should using a 40-wire cable cause corruption? Not the maximum UDMA, but data corruption? (BTW, this kernel problem about configuring for 40-wire cable goes back to at least 2007, and earlier, and it is still doing it - even with SATA-3 setups.) BC -- Using openSUSE 12.2 x86_64 KDE 4.9.4 & kernel 3.6.10-1 on a system with- AMD FX 8-core 3.6/4.2GHz processor 16GB PC14900/1866MHz Quad Channel Corsair "Vengeance" RAM Gigabyte AMD3+ m/board; Gigabyte nVidia GTX550Ti 1GB DDR5 GPU -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org