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On 09/25/10 16:40, Mark Knecht wrote: |
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(snip) |
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> I cannot due to the same sort of message I get when trying to boot: |
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> |
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> e2fsck_check_if_mount: Can't check if filesystem is mounted due to |
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> missing mtab file |
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> fsck.ext3: Device or resource busy while trying to open /dev/hda4 |
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> Filesystem mounted or opened exclusively by another program? |
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> |
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> For kicks I tried umount /dev/hda4 but that complains about the |
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> missing mtab file also. It seems from the man page I could force it |
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> but I didn't want to do that, and again if I did and it even worked |
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> then where would the system read fsck.ext3 from to do the check since |
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> it's on /dev/hda4 itself? |
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> |
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Okay, let's try a few things now that we can boot the machine (even if |
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it's not all the way!). |
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First, lets mount proc: |
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# mount -t procfs none /proc |
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Now, try fsck.ext3 again. Does it work? |
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Next, let's remount the root file system read/write so we can modify files: |
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# mount -o remount,rw / |
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We'll copy the current mount information from proc to /etc/mtab and see |
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if that helps: |
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# cp /proc/self/mounts /etc/mtab |
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# mount -o remount,ro / |
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Now, try fsck.ext3 again. Does it work? |
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If so, try rebooting the system again. Does it boot now? |
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(snip) |
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> I've gone back and done a couple more experiments: |
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> |
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> 1) So far anything I try that refers to the drive as /dev/sda4 results |
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> in a VFS not syncing type error so at least as far as the boot process |
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> goes hda4 seems to be the right device. |
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> |
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hda4 will be the right device as long as you have the old ide driver in |
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your kernel. |
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> 2) I tried building in the PATA_MACIO driver but that by itself didn't |
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> change anything: |
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> |
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> (chroot) livecd / # cat /usr/src/linux/.config | grep MACIO |
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> CONFIG_PATA_MACIO=y |
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> CONFIG_ADB_MACIO=y |
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> (chroot) livecd / # |
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> |
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> The boot still fails at the same point with the same message. Possibly |
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> some other ATA driver is being selected ahead of this one and maybe it |
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> needs to be removed from the kernel? I don't know what to remove |
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> though so I'm sort of stuck on that account. |
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> |
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The old PMAC_IDE driver is getting picked before the PATA_MACIO driver. |
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If you'd like to try the newer driver, you'll need to disable the old |
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one first. |
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-Joe |
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