New installkernel user, dracut problem?

Message

pygoscelis · Post by **pygoscelis** » Fri Sep 26, 2025 5:29 pm

Just tried the installkernel thing. The system won't boot with this error in rdsosreport.txt:

Failed to mount -t ext4 -o rw,relatime,ro,ro /dev/disk/by-uuid/<whatever> /sysroot

Now this list of options looks strange. I tried to mount the disk from the repair shell with just -o rw and its OK. But with just -o ro it says:

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mount: /sysroot: /dev/sdb3 already mounted on /media/usbhd-sdb3.
       dmesg(1) may have more information after failed mount system call.
mount warning:
      * sdb3: Can't mount, would change RO state

How can I fix that?

pygoscelis · Post by **pygoscelis** » Sun Sep 28, 2025 12:02 pm

Anyone? I'm stuck...

zen_desu · Post by **zen_desu** » Sun Sep 28, 2025 5:10 pm

it's already mounted? I'm not sure how it's failing like that.

Was it working before or is this a new install?

pygoscelis · Post by **pygoscelis** » Mon Sep 29, 2025 6:14 am

zen_desu wrote:it's already mounted? I'm not sure how it's failing like that.

Yes it looks like it is already mounted. Not sure why either.

zen_desu wrote:Was it working before or is this a new install?

This is a very old install (more than 10 years) but the current setup is genkernel based. I just decided to switch to installkernel and encountered this.

zen_desu · Post by **zen_desu** » Mon Sep 29, 2025 5:15 pm

pygoscelis wrote:
zen_desu wrote:it's already mounted? I'm not sure how it's failing like that.
Yes it looks like it is already mounted. Not sure why either.

zen_desu wrote:Was it working before or is this a new install?
This is a very old install (more than 10 years) but the current setup is genkernel based. I just decided to switch to installkernel and encountered this.

did you do any manual config? and switching from genkernel to dracut may require additional config, but misconfig can result in hard to diagnose failures.

pygoscelis · Post by **pygoscelis** » Mon Sep 29, 2025 7:05 pm

zen_desu wrote:did you do any manual config? and switching from genkernel to dracut may require additional config, but misconfig can result in hard to diagnose failures.

I didn't do any manual config.

logrusx · Post by **logrusx** » Tue Sep 30, 2025 4:47 am

pygoscelis wrote:

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       dmesg(1) may have more information after failed mount system call.

What about that?

You also provided almost no information. Please share the kernel config - the one that's most probably in /boot with the same kernel version, your partitions layout, what commands did you follow.

Best Regards,
Georgi