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wishkah
Guru
Joined: 09 May 2003
Posts: 441
Location: de
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 Posted: Wed Jul 23, 2003 3:05 pm Post subject: 2.6.0test1 works, 2.6.0mm2 doesn't boot: cannot find root fs |
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Hi,
just installed 2.6.0test1 vanilla and it works great. Now I heard about this mysterious mm2 patchset and emerged it (emerge mm-sources), copied my 2.6.0test1 .config over, made oldconfig (just asked me one think, said meh (==no)), then "make && make modules modules_install", copied over the kernelimage, modified the grub.conf (CTRL+K and CTRL+U of my 2.6.0test1 entry) and rebooted.
After the reboot and selection of the mm2 kernel in grub, I get the following:
| Code: |
[blah-blah-yack-yack-blah-yack]
BIOS EDD facility v0.09 2003-jan-22, 2 devices found
VFS: Cannot open root device "hda7" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
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The point is: I COPIED nearly everything from a working kernel, and now it's not working anymore!! I am absolutely sure there's nothing wrong with the hda7, it works with all my other kernels (2.4.20,2.4.21,2.6.0test1).
I already checked the .config file, it's settings should be allright...
Please help!
[edit]
grub.conf:
default 0
timeout 30
splash=[blahblah]
[...]
title=2.6.0test1 !BETA!
root (hd0,4)
kernel (hd0,4)/boot/bzImage_2600test1 root=/dev/hda7 vga=791 idebus=66
title=2.6.0test1_mm2 !BETA!
root (hd0,4)
kernel (hd0,4)/boot/bzImage_2600test1_mm2 root=/dev/hda7 vga=791 idebus=66
[...]
[/edit]
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segflaunt
Tux's lil' helper
Joined: 22 May 2003
Posts: 101
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latexer
Retired Dev
Joined: 05 Mar 2003
Posts: 239
Location: NYC
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| Posted: Wed Jul 23, 2003 3:59 pm Post subject: |
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see here or here for info on what has changed. Because devfsd is actually handling creating the /dev/hda or /dev/hdbX, etc, you need to either specify a hex digit for the device (see the second link) or the actual device like
| Code: | | root=/dev/ide/host0/bus0/target1/lun0/part1 |
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overlays - Use at your own risk. File bug reports on this stuff and i'll kick you in the junk. Ask me before asking upstream if these fail. I mean it. No, really.
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wishkah
Guru
Joined: 09 May 2003
Posts: 441
Location: de
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| Posted: Wed Jul 23, 2003 4:01 pm Post subject: |
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Hey, thanks, setting root=0307 fixed it!
Thanks for your help, segflaunt & latexer!
Edit:
Sure will read the kernel mailing list before posting anything beta from now on, I will be good  
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