Red Hat Bugzilla – Bug 754915
Preupgrade should delete its own boot image to free up space in /boot
Last modified: 2013-02-13 09:36:49 EST
Description of problem:
Many historic Fedora installs have small /boot partitions (200M). On such systems it is difficult to use preupgrade as the preupgrade boot image competes for space with the installed kernels.
Occurs on almost all systems with 200M boot partition (even those with only one kernel RPM installed)
Steps to Reproduce:
1. Install F15 and force a 200M boot partition
2. Attempt to upgrade using preupgrade
Many warnings and errors due to insufficient space.
By the time anaconda starts all data has been copied from the initrd in /boot/upgrade to memory. It is therefore reasonably safe for anaconda to delete this file before commencing the upgrade although perhaps it would be conservative to only delete the file when insufficient space is detected.
I have tested this on two such systems to show the principle works.
On one system (which has an encrypted partition) I switched to the shell when the installed asked for the password. From here I mounted /boot removed the initrd and then unmounted and continued installation.
On the second system (no encryption) the install is fully automated. On this system I just switched to the shell and kept typing "mount" until /boot was mounted by the installer and then deleted the initrd before the installer scanned for free space.
Both systems performed the upgrades cleanly.
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