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On 28.04.2015 16:53, Stefan G. Weichinger wrote: |
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> |
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> I now booted from a recent sysresccd ... and it didn't assemble/detect |
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> the LVM-PV ... *sigh* |
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> |
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> So I couldn't even mount the LV to chroot in there. |
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> |
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> The mdadm-RAID-devices were there and active. |
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> |
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> I didn't want to screw around with the LVM too much as there is data on |
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> there (yes, there are backups, but ...). |
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> |
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> pvscan always told me something like: |
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> |
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> No device found for PV hMMm0m-w4Ds-SU77-ATjF-iF1A-0qfq-V2IcXb |
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> |
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> .... |
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ok, one step further: |
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(no exact cut and paste because of java-based KVM access) |
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pvscan --cache |
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tells me: |
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Found duplicate PV hMMm0m-w4Ds-SU77-ATjF-iF1A-0qfq-V2IcXb: |
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using /dev/sdj1 not /dev/md3 |
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-- |
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md3 is the correct array to form the PV ... /dev/sdj1 is actually a |
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partition that is an active *member* of the array /dev/md3 |
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I tried to filter this partition by editing lvm.conf without success. |
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Under suse I don't see /dev/sdj1 as pv: |
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# pvdisplay /dev/sdj1 |
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Failed to read physical volume "/dev/sdj1" |
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- |
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Should I |
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* "pvremove /dev/sdj1" from sysresccd |
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* in suse: remove sdj1 from array md3 ... overwrite header and re-add ? |
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Oh my. |
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!! BUT -> |
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I now found another nice fact: |
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/dev/md2 (NO LVM) is unused since the initial installation. |
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I even *documented* that in the project wiki years ago. |
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40 GB of unused space on a RAID1 of SAS hdds. Nice! |
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Sounds like my new rootfs ;-) |
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dracut plus these md-lines should work then. |
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Stefan |
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