I guess I should have checked before I sent that last post because
now /dev/sda is there. Now, how do I make it be there when I first boot
into Linux?
On Sat, 2010-01-02 at 08:35 -0600, Michael Sullivan wrote:
> On Fri, 2010-01-01 at 11:37 -0800, walt wrote:
> > On 01/01/2010 05:48 AM, Michael Sullivan wrote:
> > > Hello
> > >
> > > My wife's computer is pretty slow, so I've attached and old hard drive
> > > into a hard drive enclosure and hooked it into her USB port for
> > > additional swap space. It used to work. The swap space is supposed to
> > > be /dev/sda1. The problem is that for some reason when I rebooted this
> > > morning with a new kernel, /dev/sda does not exist anymore...
> >
> > Hm. So the only thing you changed was the new kernel? Might help to
> > know why you built the new kernel. What problem were you solving by
> > doing it?
> >
> OK here goes. I built the new kernel because with the old one /dev/sda
> didn't seem to exist when I know it should. And besides, there was a
> newer kernel marked as stable and aren't we always supposed to use the
> newest stable kernel for security reasons, unless there's something that
> we need done that the new kernel doesn't do?
>
> > I would try booting the machine without the USB swap disk and then
> > hotplug it when the machine is already running. What does dmesg say
> > then? Can be simpler to interpret when you know exactly which lines
> > were printed in response to the newly connected drive.
>
>
> I rebooted the machine with the drive unplugged and ran dmesg:
>
> catherine ~ # cat dmesg.txt
> Initializing cgroup subsys cpuset
> Linux version 2.6.31-gentoo-r6 (r...@catherine) (gcc version 4.3.4
> (Gentoo 4.3.4 p1.0, pie-10.1.5) ) #1 SMP Thu Dec 31 19:13:07 CST 2009
> KERNEL supported cpus:
> Intel GenuineIntel
> AMD AuthenticAMD
> NSC Geode by NSC
> Cyrix CyrixInstead
> Centaur CentaurHauls
> Transmeta GenuineTMx86
> Transmeta TransmetaCPU
> UMC UMC UMC UMC
> BIOS-provided physical RAM map:
> BIOS-e820: - 0009f800 (usable)
> BIOS-e820: 0009f800 - 000a (reserved)
> BIOS-e820: 000f - 0010 (reserved)
> BIOS-e820: 0010 - 0dff (usable)
> BIOS-e820: 0dff - 0dff3000 (ACPI NVS)
> BIOS-e820: 0dff3000 - 0e00 (ACPI data)
> BIOS-e820: fec0 - fec01000 (reserved)
> BIOS-e820: fee0 - fee01000 (reserved)
> BIOS-e820: - 0001 (reserved)
> DMI 2.2 present.
> Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.
> e820 update range: - 0001 (usable) ==>
> (reserved)
> last_pfn = 0xdff0 max_arch_pfn = 0x10
> MTRR default type: uncachable
> MTRR fixed ranges enabled:
> 0-9 write-back
> A-B uncachable
> C-C7FFF write-protect
> C8000-E uncachable
> F-F write-protect
> MTRR variable ranges enabled:
> 0 base 0 mask FF000 write-back
> 1 base 00E00 mask FFE00 uncachable
> 2 base 0D000 mask FF800 write-combining
> 3 disabled
> 4 disabled
> 5 disabled
> 6 disabled
> 7 disabled
> initial memory mapped : 0 - 0080
> init_memory_mapping: -0dff
> 00 - 40 page 4k
> 40 - 000dc0 page 2M
> 000dc0 - 000dff page 4k
> kernel direct mapping tables up to dff @ 1-15000
> RAMDISK: 0dcc5000 - 0dfdf8aa
> ACPI: RSDP 000f7170 00014 (v00 AWARD )
> ACPI: RSDT 0dff3000 0002C (v01 AWARD AWRDACPI 42302E31 AWRD )
> ACPI: FACP 0dff3040 00074 (v01 AWARD AWRDACPI 42302E31 AWRD )
> ACPI: DSDT 0dff30c0 038FA (v01 AWARD AWRDACPI 1000 MSFT 010E)
> ACPI: FACS 0dff 00040
> ACPI: APIC 0dff69c0 0005A (v01 AWARD AWRDACPI 42302E31 AWRD )
> ACPI: Local APIC address 0xfee0
> 0MB HIGHMEM available.
> 223MB LOWMEM available.
> mapped low ram: 0 - 0dff
> low ram: 0 - 0dff
> node 0 low ram: - 0dff
> node 0 bootmap 00011000 - 00012c00
> (9 early reservations) ==> bootmem [00 - 000dff]
> #0 [00 - 001000] BIOS data page ==> [00 -
> 001000]
> #1 [001000 - 002000]EX TRAMPOLINE ==> [001000 -
> 002000]
> #2 [006000 - 007000] TRAMPOLINE ==> [006000 -
> 007000]
> #3 [10 - 637f00]TEXT DATA BSS ==> [10 -
> 637f00]
> #4 [000dcc5000 - 000dfdf8aa] RAMDISK ==> [000dcc5000 -
> 000dfdf8aa]
> #5 [09f800 - 10]BIOS reserved ==> [09f800 -
> 10]
> #6 [638000 - 63a06a] BRK ==> [638000 -
> 63a06a]
> #7 [01 - 011000] PGTABLE ==> [01 -
> 011000]
> #8 [011000 - 013000] BOOTMAP ==> [011000 -
> 013000]
> found SMP MP-table at [c00f57a0] f57a0
> Zone PFN ranges:
> DMA 0x001
