unable to boot /boot/sda3 not found

[snakeo2]

I've had a working gentoo box for over a year now. I recently purchased a AMD Athlon dual core 4200 which I plan to install one of these days. a few days ago , I did genkernel --menuconfig all to make sure I had SMT ( not sure if this is the accronym ) for dual core support compiled in my kernel. I guess I compiled my kernel with SMT and didnt have to do anything, so I just exit without saving changes or at least I thought I did. This morning, I tried to boot into gentoo only to be greeted by the " unable to boot /boot/sda3 not found , please specify " . My guess is that probably there is something wrong with my grub.conf, my sata drivers are not being loaded. Im actually using my 2006 gentoo live cd right now and will be trying to chroot into my system and try to see if I can spot any changes that shouldnt be there. If you guys have any suggestion, please feel free to give me some suggestion. Also, can someone tell me what cflags I should use for my new CPU.
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[nixnut]

Well, you could try giving us some information. Most of us are not clairvoyant and thus lack the means to see your boot error and the contents of your grub.conf file.
_________________
Please add [solved] to the initial post's subject line if you feel your problem is resolved. Help answer the unanswered

talk is cheap. supply exceeds demand

[snakeo2]

I was trying to get some relevant info prior to posting, but I do appreciate sarcasm. Anyhow, I tried chrooting and is not working. Here is the error I'm getting.

livecd ~ # mount -t proc none /mnt/gentoo/proc
mount: mount point /mnt/gentoo/proc does not exist

livecd ~ # chroot /mnt/gentoo /bin/bash
chroot: cannot run command `/bin/bash': No such file or directory
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[nixnut]

You need to mount the partition where you installed gentoo on first. After that you can mount the proc filesystem and chroot in.
_________________
Please add [solved] to the initial post's subject line if you feel your problem is resolved. Help answer the unanswered

talk is cheap. supply exceeds demand

[snakeo2]

thanks for the advise. I was using the wrong live CD, it was for an x86 and I have an x86_64 and was getting all sorts of errors. I went out and got the 2006 x86_64 minimum install cd and was able to mount my /root & boot partitions. I recompiled my kernel using

genkernel --menuconfig all and still getting the same error. here is the exact error i get when i reboot

init:228: mdev : not found

- block device /dev/sda3 - is not a valid root device

- root block device is unspecified or nto detected. is there a live cd for x86_64?? I couldnt find one. I would prefer to use that cd because I can chroot into my system and use the internet at the same time and copy paste my grub.conf ; /etc/fstab ;etc without typos, not to mention that booting between windows and gentoo to post answers. If you know if there is a livecd for x86_64, please let me know. thanks.
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[snakeo2]

Like I said, I recompiled and have support for sata compiled as module. Here is grub & fstab info.

/boot/grub/grub.conf

default 0
timeout 30
splashimage=(hd1,0)/boot/grub/splash.xpm.gz

title=Gentoo Server
root (hd1,0)
kernel /kernel-genkernel-x86_64-2.6.17-gentoo-r4 root=/dev/ram0 init=/linuxrc ramdisk=8192 real_root=/dev/sda3 udev video=vesafg:mtrr:3,y wrap

title=Windows XP
rootnoverify (hd0,0)
makeactive
chainloader +1


/etc/fstab

/dev/sda1 /boot ext2 noauto,noatime 1 2
/dev/sda3 / ext3 noatime 0 1
/dev/sda2 none swap sw 0 0
/dev/sda5 /home ext3 noatime 0 1
/dev/hda /mnt/cdrom iso9660 noauto,ro 0 0
/dev/hdb /mnt/dvd iso9660 noauto,ro 0 0
/dev/fd0 /mnt/floppy auto noauto 0 0


Any advise, will be appreciated. Thanks
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[slycordinator]

[Ehnvis]

I would recommend you to recompile the kernel again and make sure SATA support goes INTO the kernel not as module. If it's a module you
cant boot from a SATA disk as the module isn't loaded at that part of boot.
_________________
HP NC 4010, Pentium-M 725 1.6GHz w/ 1Gb RAM, 60Gb Hitachi Travelstar.
Running Gentoo-2.6.21-r4 (again as 2.6.22 kernels hogs CPU), all but SD reader works fine.

[steveL]

[slycordinator]

[snakeo2]

I will follow up with your suggestiosn when i get home from work. I'm almost certain that all related to sata is compiled into the kernel. the odd thing is that i didnt make any changes. all i did was to open genkernel --menuconfig all to make sure it had smt compiled into the kernel before upgrading my CPU. and then it stopped working. nonetheless, i will try to recompile tonight. thanks. will let you know of progress
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[snakeo2]

Come to think about it, I do remember emerging the new gentoo-sources, but I never did compile it. What are the odds that maybe something happened and is creating conflicts......
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[slycordinator]

Not likely.

You're booting your old kernel which seems to not have been configured correctly to begin with. And you emerged a new gentoo-sources but never configured it at all or installed it.

[steveL]

[snakeo2]

slycordinator

Do you see anything that is misconfigured with my grub.conf and/or fstab? I have this box working for well over 13 months now with no problems. It all went down the drain last friday when I ran " genkernel menuconfi all " to see I had compiled support for dual core amds since I have one which I will be installing shortly. Since I had support compiled inthe kernel, I simply exit and booted into windows. When I try to boot into gentoo on sunday, it wouldnt boot, so not sure what happened. I will work on it tonight and hopefully get it fixed. Would hate to do a fresh re-install.
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[slycordinator]

Just because you have support for dual-core chips doesn't mean you have support built in for your hard disk controller.

[snakeo2]

i was able to chroot into my sysstem using the livecd 2007 here is my lspci

lspci
00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3)
00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2)
00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2)
00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3)
00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2)
00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2)
00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2)
00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 6600] (rev a2)
05:06.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
05:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10)
05:08.0 Ethernet controller: Atheros Communications, Inc. AR5005VL 802.11bg Wireless NIC (rev 01)

/etc/fstab: static file system information.
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# The root filesystem should have a pass number of either 0 or 1.
# All other filesystems should have a pass number of 0 or greater than 1.
#
# See the manpage fstab(5) for more information.
#

# <fs> <mountpoint> <type> <opts> <dump/p$

# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/sda1 /boot ext2 noauto,noatime 1 2
/dev/sda3 / ext3 noatime 0 1
/dev/sda2 none swap sw 0 0
[ Read 32 lines ]

I just tried using genkernel and it doesnt work.
genkernel --menuconfig all
bash: genkernel: command not found

I will post more info tomorrow as it's already late. thanks for all the help.
_________________
Gigabyte MA790X-UD4P Motherboard
AMD Phenom II X4 940 Black Edition
MSI ATI R4650 PCIe2
250GB SATA Drive
4GB Corsair DDR2

[slycordinator]

You have to be root to run genkernel.