FATAL: debian/scripts/misc/prepare-ppa-source

[Tim Gardner]

TJ wrote:
> A few minutes ago I was tempted to find out whether
> debian/scripts/misc/prepare-ppa-source might be useful in uploading test
> kernels to my personal PPA.
> 
> An initial error report made me interrupt the script and go hunting for
> the cause:
> 
> cp: missing destination file operand after `../last-ppa-upload'
> Try `cp --help' for more information.
> ^C
> 
> I spent a while hunting down where $(ppa_file) comes from before
> thinking to check the git-log, whereupon I got a nasty shock:
> 
> git log -- debian/scripts/misc/prepare-ppa-source
> error: object directory /home/all/SourceCode/linux/linux-2.6/.git/objects does not exist; check .git/objects/info/alternates.
> error: Could not read 4a6908a3a050aacc9c3a2f36b276b46c0629ad91
> fatal: cannot simplify commit 94cba110c064e49b437fe482dbbcb6f7b3a652d4 (because of 4a6908a3a050aacc9c3a2f36b276b46c0629ad91)
> 
> After some confusion I realised that the main linux-2.6/ directory had
> gone - cue that sinking feeling that I tried to avoid on Friday 13th!
> 
> I have my kernel source repositories organised on a common root:
> 
> /home/all/SourceCode/linux/
> 
> ./linux-2.6
> # tracks Linus's tree and contains remotes from various other trees
> # (linux-pci, x86-tip, etc.)
> 
> ./ubuntu-jaunty
> ./ubuntu-intrepid
> ./ubuntu-hardy
> # etc...
> 
> Each of these trees are initialised using a reference to ./linux-2.6 to
> avoid needless duplication.
> 
> After some wondering as to where/why ./linux-2.6/ had disappeared and
> wondering if this was an ext4 file-system issue I thought back to the
> last significant action - prepare-ppa-source.
> 
> Looking at the script I discovered this gem:
> 
> rm -rf ../linux* include/config .config
> 
> I can't see why that wild-card is needed but it is certainly fatal and
> unexpected!
> 
> The tragedy here is that the ./linux-2.6/ repository contained my PCI
> IOMEM system as well as a host of other branches for bug-fixes.
> 
> Any ideas how to recover ext4 data!? /home/all/SourceCode is a separate
> ext4 file-system in a LV so I've unmounted it for now to preserve the
> state.
> 
> 

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=commit;h=f669e8e4b9ddf916a52ae5051f3dd88cd7c97f05

-- 
Tim Gardner tim.gardner at canonical.com