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Bug 68486 - Anaconda does not correctly calculate the disk space required
Anaconda does not correctly calculate the disk space required
Product: Red Hat Public Beta
Classification: Retired
Component: anaconda (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Jeremy Katz
Brock Organ
Depends On:
  Show dependency treegraph
Reported: 2002-07-10 12:23 EDT by David L. Gehrt
Modified: 2007-04-18 12:44 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2002-07-10 14:17:10 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description David L. Gehrt 2002-07-10 12:23:26 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020607

Description of problem:
When doing an install-everything it said the size of the install was ~3.87 GB. 
I was installing in a single 4GB partition, and anaconda reported I needed an
additional 31 MB in /usr.  I could not back track to correct this problem by
repartition the disk to accomodate this increased space requirement.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. The process is discribed above.
2. I have seen similar problems doing installes in multiple partitions.
3. This means the problem is reproducible when a partition is  too small.

Actual Results:  The results are described above.

Expected Results:  Anaconda should correctly calculate and report the required
install size at a point where a user could make sure they have sufficient sized
partition(s) available.  Does an install require addition of a fudge factor to
install sizes for processing input RPMs?

Additional info:

I even tried unmounting the single large partition in vt2, but the partition was
busy.  Lsof was not a vailable, but I assume it was a CWD for part of anaconda.
 It wouold be nice if it was possibvle to unmount /tmp/sysimage to allow
recovery of this sirt of failing install(or update of a previous install)
Comment 1 Jeremy Katz 2002-07-18 02:08:09 EDT
In the package selection screen, we're just showing you how much space is
required for the packages.  This doesn't include overhead for things like cache
files created by various package %post scripts, the rpmdb, or the size of the
install image needed on the hard drive.  But when the rpm space calculation
occurs, it takes all of this into account (and also number of inodes)
Comment 2 Dont Close Unfixed Bugs 2002-09-09 00:21:23 EDT
There appear to be several problems here.  One is that the disk space
in the early (package selection) part of Anaconda is inaccurate.  Another
is that the disk space calculation for upgrades is wildly inaccurate since
it doesn't appear to take account of the space used by the existing

I have tried to upgrade two computers from RH 7.1 to 7.3.  BOTH of them have
given me endless grief over this.  I go through all the usual steps and
get to the end and it spends "minutes" copying an install image and then
spends more minutes twiddling its thumbs and then it announces "You don't
appear to have enough disk space to install the packages you've selected.  You
need more space on the following filesystems:  /  220M".  That was the
second try.  The first time,
it demanded more than 350MB more -- so I went back and deleted *more than* 350MB
of packages from the list of packages to upgrade.  Then went forward with
the upgrade.  Then I go through ten
minutes of foot-twiddling while it does something slow and useless, and
now it tells me it wants 220MB.  WHY WON'T IT TELL ME WHAT IT REALLY WANTS?

What puts the icing on the cake is that it turned out in my very first RH7.1 to
7.3 upgrade that when all was
said and done, it really didn't need all that disk space.  After I went
back around several times, deleting packages from the list to update, until
it finally ungraciously consented to do the upgrade -- then I upgraded those
packages manually which I had had to skip the first time --
it had PLENTY of disk space!  There's just some
serious bug in how it's calculating all this crap.

But every time someone mentions this, you guys close out the bug without ever
fixing it.  Bug #35798 is another variant of this bug, reported in RH 7.1, and
also closed out by incompetent maintainers.

If you won't fix this, you should at least make a button for "GO AHEAD ANYWAY"
in the "You don't appear to have enough disk space" dialogue -- 
so that users can get their *$*&#$&# systems upgraded without endlessly
reporting the same bug and having you ignore them.
Comment 3 Dont Close Unfixed Bugs 2002-09-09 00:37:32 EDT
Bug 20554 is another person who ran into this problem -- in RH 7.0.

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