Tag Archives: filesystem
Rebuilding a RAID1 mirror with a Truecrypt container on it may require some additional steps. I guess that since no filesystem is visible on the disk, the RAID array is having trouble determining which disk to rebuild from. If your neighbourhood have had a blackout, the filesystem in the container is probably dirty anyway. This is how I take care of the matter on my external ICY Box IB-RD4320 USB chassi.
The manual for ICY Box IB-RD4320 USB chassi have this table regarding the meaning of the LED lamps on the unit:
Having recently dist-upgraded to Kubuntu 12.04 Precise Pangolin, I was kind of hoping for the system to be able to read the SDXC card from my Nikon camera. It’s a 64GB SD card with the filesystem exfat. Exfat is an M$ proprietary filesystem intended to replace FAT32 (vfat), and unfortunately Linux is still unable to read this filesystem (kernel 3.2.0-26). Doing some googling I found this link.
The solution to the problem is simple:
sudo apt-get update
sudo apt-get install fuse-exfat
I still haven’t tried writing anything with this driver. I just want to be able to copy the images from my and the driver works well for this.
LVM gives you flexibility at the cost of more complexity. When a system with LVM configured is shutdown uncleanly, there may be some trouble getting back on track again.
Some notes from the top of my head, for occasions when this happens.
- If your LVM system stops booting and complains about the disks, or the disks are suspected being dirty, boot into maintenance/single mode.
- Search for your volume group to see that it’s available:
- Activate your volume group:
- Check filesystem integrity, for each of your logical volumes:
Some quick notes on LVM:
- Display information about physical volumes (PV)
- Display information about all locical volumes (LV)
- Growing a logical volume
- Growing the filesystem (this works for JFS)
That last remount is just to make the filesystem writable again, since the resize sets the filesystem to read-only.
See the LVM-HOWTO for more information.