#5719 BLOC Never A: Deleting a large file from a USB stick copies it into NAND (often filling NAND)

[Zarro Boogs per Child]

#5719: Deleting a large file from a USB stick copies it into NAND (often filling
NAND)
------------------------+---------------------------------------------------
  Reporter:  gnu        |       Owner:  tomeu         
      Type:  defect     |      Status:  new           
  Priority:  blocker    |   Milestone:  Never Assigned
 Component:  datastore  |     Version:  Build 650     
Resolution:             |    Keywords:                
  Verified:  1          |    Blocking:                
 Blockedby:             |  
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Comment(by cscott):

 I have a patched copy of olpcrd which will let you recover the system as
 follows:
  * First, get a developer key for the machine.
  * Go to the OFW prompt.
  * Type: (the 'ok' is the prompt, don't type that)
 {{{
 ok " nand:\boot\vmlinuz" to boot-device
 ok " disk:\olpcrd" to ramdisk
 ok boot
 }}}
  * Now you will boot into linux.  Sugar won't start, because the
 filesystem is full, but after about 30s it will give up and you will be at
 a console.
  * Log in as root (or 'olpc' on joyride/update.1 builds).
  * Type:
 {{{
 cd ~olpc/.sugar/default/data
 ls -s | sort -n
 }}}
  * The last file listed is the biggest file in your journal, and likely
 the culprit.  Remove it:
 {{{
 rm FILENAME
 sync
 }}}
  * Power off and reboot normally.

 In addition to now being idiotic and copying files to NAND before trying
 to delete them, the datastore *should* be careful to always clean up after
 failed operations and delete orphaned files.  In theory, there should be a
 datastore-fsck which removes orphans.

-- 
Ticket URL: <http://dev.laptop.org/ticket/5719#comment:1>
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