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[NMLUG] kernel2.6 help
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Aaron NMLUG wrote:
| on grub settings...
|
|
|>root (hd0,3)
|>kernel (hd0,1)/bzImage-2.6.8_20041025 root=/dev/hda4
|
|
|>...Here's my relevant fstab setting so you can add it up:
|>
|>/dev/hda4 / reiserfs noatime 0 0
|>/dev/hda2 /boot ext2 noauto,noatime 1 1
|
|
| This does seem a little different from what I often see.
| Looks like you set your grub-root to the REAL root,
| then defined your kernel directly from the boot partition.
| It might be worth a try.
|
| However... I not kind-of doubt that grub was my real issue.
| It looks like the kernel I had been building is wanky.
| Unfortunately, the kerne; "make install" I ran made the
| whole system unbootable, so I re-installed and
| tried to set up grub by hand this time.
|
| When I boot, I get something like: (this is a paraphrase... no
| cut-and-paste on dead console!)
| RAMDISK initialized....
| ide: assuming 33 MHz system bus for PIO modes; override with idebus=xx
| ...
| VFS: cannot open root device "hda2" or unknown block(0,0)
| Please append a correct "root=" boot option
| ...
| Kernel panic: VFS: unable to mount root fs on unknown block(0,)
|
| ------------------
|
| This is odd, since the new kernel mirrors the stock one
| pretty closely. Grub entries are:
|
| ...
| title Debian GNU/Linux, kernel 2.6.8-1-386
| root (hd0,0)
| kernel /vmlinuz-2.6.8-1-386 root=/dev/hda2 ro
| initrd /initrd.img-2.6.8-1-386
| savedefault
| boot
| ...
| title SMP2.6.8 kernel with 4GB Memory
| root (hd0,0)
| kernel /SMP2.6.8HM root=/dev/hda2 ro
| #initrd /initrd.img-2.6.8-1-386
| boot
|
| ** Messages on stock kernel are like...
| ...
| VFS: Disk quotas dquot_6.5.1
| Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
| devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
| devfs: boot_options: 0x0
| ...
| RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
| ...
| RAMDISK: cramfs filesystem found at block 0
| RAMDISK: Loading 4316 blocks [1 disk] into ram disk... done.
| VFS: Mounted root (cramfs filesystem) readonly.
| Freeing unused kernel memory: 204k freed
| ...
| ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
| SvrWks OSB4: IDE controller at PCI slot 0000:00:0f.1
| SvrWks OSB4: chipset revision 0
| SvrWks OSB4: not 100% native mode: will probe irqs later
| ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA
| ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
| hda: WDC WD1200JB-00EVA0, ATA DISK drive
| hdb: DVD+R/RWDX082D, ATAPI CD/DVD-ROM drive
| Using anticipatory io scheduler
| ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
| hda: max request size: 1024KiB
| hda: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=16383/255/63,
(U)DMA
| /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 >
| ...
| kjournald starting. Commit interval 5 seconds
| EXT3-fs: mounted filesystem with ordered data mode.
| Adding 939760k swap on /dev/hda8. Priority:-1 extents:1
| EXT3 FS on hda2, internal journal
|
| ***********************
|
| So it looks like the root filesystem CAN work, I'm just
| not making it through the boot sequence.
|
| Is there something else I need to do to the kernel to get
| it to boot without the initrd image?
| or... how to I make an appropriate initrd image and use it?
| Looks like perhaps the devfs doesn't get initialized,
| so there is no "/dev/hda2" to mount for my kernel.
Ah, right you are...My grub is probably misconfigured on this box...It
works, though. ;-)
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