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bension
Tux's lil' helper
Joined: 04 Feb 2004
Posts: 86
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 Posted: Sun Jun 07, 2009 10:15 pm Post subject: help with kernel panic |
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I just tried to upgrade my kernel, after compiling a reboot I get a kernel panic. Here is the error:
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VFS: Cannot open root device "hda5" or unknwown-block
Please append a correct "root=" boot option |
My 2.6.16 boots just fine, but I get the error with 2.6.29
In my grub.conf:
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title=2.6.16
root (hd0,1)
kernel /boot/kernel-2.6.16 root=/dev/hda5
title=2.6.29
root (hd0,1)
kernel /boot/kernel-2.6.29 root=/dev/hda5
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I want /dev/hda5 to mount to /. Not sure why this doesn't work in the new kernel |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
Posts: 4791
Location: 2 exits past crazy
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| Posted: Sun Jun 07, 2009 10:28 pm Post subject: |
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You most likely didn't configure in support for the filesystem that is used by your root partition. You made quite a jump in kernel versions and a lot of options got moved around in the menuconfig tree. Just copying the old .config file and doing "make oldconfig" won't be enough. You'll need to manually go through all the options when configuring the new kernel. (or possibly use genkernel)
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| Bones McCracker wrote: | | On the other hand, regex is popular with the ladies. |
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bension
Tux's lil' helper
Joined: 04 Feb 2004
Posts: 86
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| Posted: Sun Jun 07, 2009 11:23 pm Post subject: |
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/dev/hda5 is reiserfs - I did check to make sure I included fs support. I did use make menuconfig - when going through all the tree the options did look a lot different. I probably missed something, but not sure where to look, I'll go back and check the FS support one more time. A bit more from the error message:
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Please append a correct "root=" boot option; here are the available partions:
....sda driver: sd
....sda1...
.....sda2
......
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Why is each partition listed as sda instead of hda? Maybe that's my problem. |
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i92guboj
Bodhisattva
Joined: 30 Nov 2004
Posts: 10315
Location: Córdoba (Spain)
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| Posted: Sun Jun 07, 2009 11:44 pm Post subject: |
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| bension wrote: | /dev/hda5 is reiserfs - I did check to make sure I included fs support. I did use make menuconfig - when going through all the tree the options did look a lot different. I probably missed something, but not sure where to look, I'll go back and check the FS support one more time. A bit more from the error message:
| Quote: |
Please append a correct "root=" boot option; here are the available partions:
....sda driver: sd
....sda1...
.....sda2
......
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Why is each partition listed as sda instead of hda? Maybe that's my problem. |
ATA disks are now supported through the PATA emulation layer in the SATA subsection. That's why they are named as scsi drives, just like SATA ones or usb sticks. So, yes, you need to adjust not only grub.conf, but also your fstab accordingly. |
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bension
Tux's lil' helper
Joined: 04 Feb 2004
Posts: 86
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| Posted: Mon Jun 08, 2009 3:53 pm Post subject: |
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Thanks i92guboj - that was indeed the problem. Once I change references to sda I am able to boot up.
Now I have some other driver issues I need to address.
Thanks again. |
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Kernel & Hardware
