On Tue, 2009-01-27 at 09:45 -0500, Stewart Adam wrote:
On 1/27/09 9:21 AM, Forrest Taylor wrote:
> On Wed, 2009-01-14 at 06:42 -0500, Kam Salisbury wrote:
>> How do I see how much space is used in the overlay file (Fedora USB)?
>> [liveuser@localhost ~]$ df -h
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/mapper/live-rw 3.0G 2.2G 771M 75% /
>> tmpfs 1013M 288K 1013M 1% /dev/shm
>> /dev/sdb1 15G 8.3G 6.8G 55% /mnt/live
>> varcacheyum 1013M 0 1013M 0% /var/cache/yum
>> /tmp 1013M 104K 1013M 1% /tmp
>> vartmp 1013M 0 1013M 0% /var/tmp
>> The above command output does not seem to reflect the 2GB overlay.
>> Is there a way to output "just" the overlay contents? Something like
'du -hs' (du shows what /dev/mapper shows).
> I wrote a script to check the status of the overlay (attached). I'll
> see if I can get it included for future use.
Has anyone else had the overlay become corrupted when it gets full? I had
this problem too... df -h said I had a bunch of free space so I installed
lots of extra packages but then I got a error message saying "read only
filesystem" I after that I couldn't run "rm" or even "ls".
When I rebooted
from the USB key again, it complained about logical buffer errors and I had
to regenerate the overlay to fix it.
Yeah, that is what happens when you fill up the overlay. df really
isn't a valid measure of the space that you can use. You should use a
larger overlay if you want to use more disk space. I've been toying
with the idea of using multiple overlay files (e.g., on FAT you cannot
have files larger than 2GB), but it seems more work than it is worth at
BTW, instead of regenerating the overlay, you can clear it out by
booting the LiveUSB using the reset_overlay kernel option.
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