[mythtv-users] python filewriting and partition boundaries
John Pilkington
J.Pilk at tesco.net
Tue Apr 2 17:43:44 UTC 2013
On 31/03/13 17:57, John Pilkington wrote:
> Hi: Several years ago I trashed a hard drive, apparently by writing
> video from Linux to an ntfs partition.
>
> I now have another disk that seems to have lost some partition info. The
> VolGroup-lv_home superblock isn't readable and my Googling suggests
> using tools that can't be found on the disk. I imagine that they were
> installed as default, but I'm not sure. SL6 and Myth 0.26-fixes.
>
> It seems to me that the most unusual thing about what I have done with
> this box is using a python script to cut and concatenate video files.
> The script is at MythDVBcut on the wiki. In the scripts as posted it is
> used only for HD content. It doesn't include any checking for partition
> boundaries, because I assumed that this would be done automatically.
>
> The script normally does what I intended, but I'm now worried that I may
> have unleashed a disk-trashing tool on the community. Can anyone
> comment or suggest a more appropriate forum for this question?
>
> John P
The problem was real but after posting on the Scientific Linux list I
was advised that I needed to reinstall lvm2 and lvm2-libs, which had
somehow disappeared. Fortunately I had compatible packages for those
and initscripts cached and was able to install them. Then vgscan,
lvscan and reboot back to normal. Phew!
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