Description of problem: system-config-lvm allows resizing of live mounted volumes including root!, and fails to change anything in the underlying filesystem. This causes fs errors on bootup and possible loss of data. Version-Release number of selected component (if applicable): 1.1.4 in Fedora 10 How reproducible: always Steps to Reproduce: 1. start system-config-lvm tool, select a LV, click "Edit Properties" 2. reduce the size of the LV, exit tool, and reboot 3. what the fs errors at boot time, and pray you haven't just lost your files Actual results: it just does a shrink on the LV Expected results: I was sure it would unmount the fs, do a fsck, and resize2fs, then lvreduce, then resize2fs again, and mount back. thats the purpose of a tool Additional info:
I just thought i'd mention that this is with an encrypted LVM. resize2fs doesnt seem to work either. Maybe the tool needs to be adjusted for LUKS encryption?
Updated package should be in F10 soon (pushed to stable), one problem with resize2fs was fixed. Shrinking root filesystem should be possible also on mounted filesystem. I will check that problem with encrypted filesystem, but next week I'm leaving for holidays, so it will be fixed in late September at best.
well, it didn't seem to help any of the problems above. resize2fs doesn't work either, but on the non encrypted volume it does work. So its definitely a problem in resize2fs, and the LVM tool is practically useless at this point. # resize2fs /dev/VolGroup00/LVspare resize2fs 1.41.4 (27-Jan-2009) resize2fs: Device or resource busy while trying to open /dev/VolGroup00/LVspare Couldn't find valid filesystem superblock.
I think I see the problem now, It looks like resize2fs needs to operate on the luks encrypted device only. # ls /dev/mapper luks-0bc6ebf4-7591-4ef5-83fd-9fa2550bdaa2 VolGroup00-LVroot luks-89c69e57-2c16-4864-b561-b470bbd22dca VolGroup00-LVspare luks-8cdb07ca-3506-433e-9477-0bd795a257a4 VolGroup00-LVswap So I guess the LVM tool just needs to be adjusted for this, for encrypted volumes. I tested that resize2fs works fine. I think the cryptsetup command would be required also. Just let me know if you need any more info at all. thanks,
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Corruption of filesystem is cloned to bz#547363. There is no plan to support encrypted volumes in s-c-lvm as it is deprecated product. If you want to write a patch, i don't have a problem with adding it to upstream.