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[SOLVED] x3550 kernel panic, vfs sync
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Jrauch
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PostPosted: Mon Oct 14, 2013 6:35 pm    Post subject: [SOLVED] x3550 kernel panic, vfs sync Reply with quote

I'm having a terrible time building a working kernel for this IBM x3550. The kernel panics trying to mount the root file system (vfs sync). It sees 8,0, but can't see or mount 8,3.
So, the kernel sees sda, but not sda3.

I have the correct drivers for the raid controller (I can load and unload the module on the live cd, and see the disc being detected).
Code:
01:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2008 [Falcon] (rev 03)
        Subsystem: IBM ServeRAID M1015 SAS/SATA Controller
        Kernel driver in use: megaraid_sas
        Kernel modules: megaraid_sas


The boot partition is ext2, root is ext4; those modules are built-in.

I've tried taking the config from the live cd and building that, with the same result. Building an initrd with the genkernel tools was also of no help. I even tried genkernel for the first time, but the result was the same.

I've tried lilo and grub out of desperation, but this doesn't really seem to be a boot loader issue to me. Here is the lilo config:

Code:
boot=/dev/sda             # Install LILO in the MBR
#boot=/dev/rd/host0/target0/part1       # Install LILO in the MBR
prompt                    # Give the user the chance to select another section
timeout=50                # Wait 5 (five) seconds before booting the default section
default=gentoo            # When the timeout has passed, boot the "gentoo" section

# Only if you use framebuffer. Otherwise remove the following line:
#vga=normal                # Framebuffer setting. Adjust to your own will
vga=ask


image=/boot/vmlinuz
        #initrd=/boot/initramfs-genkernel-x86_64-3.10.7-gentoo
        label=gentoo
        read-only
        root=/dev/sda3
        #append=""



This isn't my first kernel build or Gentoo system, but I'm at a loss here. Any suggestions?


Last edited by Jrauch on Mon Oct 14, 2013 9:31 pm; edited 1 time in total
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nemectic
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PostPosted: Mon Oct 14, 2013 8:14 pm    Post subject: Reply with quote

Can you post your kernel .config?
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Jrauch
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PostPosted: Mon Oct 14, 2013 8:58 pm    Post subject: Reply with quote

Of course. Thanks for taking a look.

edit: Looks as if it's too long to post, you can look at it here.

https://lain.the-wired.com/~jrauch/rou-config
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nemectic
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PostPosted: Mon Oct 14, 2013 9:12 pm    Post subject: Reply with quote

You don't have any file system drivers enabled in your kernel, you'll need those!

[edit] Also, do you have a GPT partition table? If not, you'll need to enable msdos partition table too.
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Jrauch
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PostPosted: Mon Oct 14, 2013 9:17 pm    Post subject: Reply with quote

Code:
CONFIG_EXT2_FS=y

CONFIG_EXT3_FS=y
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y

CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y


I'm not sure what you mean, what exactly am I missing?
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Jrauch
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PostPosted: Mon Oct 14, 2013 9:19 pm    Post subject: Reply with quote

Code:
Disk /dev/sda: 146.0 GB, 145999527936 bytes, 285155328 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0001c506

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      526335      262144   83  Linux
/dev/sda2          526336     8914943     4194304   82  Linux swap / Solaris
/dev/sda3         8914944   285155327   138120192   83  Linux


Nope, no gpt. I'm not sure I was aware if it needing msdos though, so that's good to know.
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nemectic
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PostPosted: Mon Oct 14, 2013 9:20 pm    Post subject: Reply with quote

Sorry, I search for them in your post before you uploaded them in a link, I'll take another look :oops:
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nemectic
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PostPosted: Mon Oct 14, 2013 9:21 pm    Post subject: Reply with quote

Yeah, you'll need msdos partition tables then, UEFI partition tables are for GPT.
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Jrauch
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PostPosted: Mon Oct 14, 2013 9:27 pm    Post subject: Reply with quote

nemectic wrote:
Sorry, I search for them in your post before you uploaded them in a link, I'll take another look :oops:


Not a problem. I didn't realize how cut off if it was in my initial attempt. I'm rebooting with msdos partition tables now...
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Jrauch
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PostPosted: Mon Oct 14, 2013 9:30 pm    Post subject: Reply with quote

You rock! It works. Thanks for the help, I was never going guess that was the missing module.
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nemectic
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PostPosted: Mon Oct 14, 2013 9:32 pm    Post subject: Reply with quote

No problem, glad to help. :)
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