GNU bug report logs - #35722
Installer does not handle FAT16 file systems

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Message #26 received at 35722-done <at> debbugs.gnu.org (full text, mbox):

From: Danny Milosavljevic <dannym <at> scratchpost.org>
Cc: Ludovic Courtès <ludo <at> gnu.org>,
 Mathieu Othacehe <m.othacehe <at> gmail.com>, 35722-done <at> debbugs.gnu.org,
 Graham Lee <graham <at> iamleeg.com>
Subject: Re: bug#35722: Filesystem error in the installer
Date: Tue, 14 May 2019 20:20:08 +0200

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Root cause analysis:

                (user-partitions (append
                                  (auto-partition disk #:scheme scheme) 
                                  (create-special-user-partitions
                                   (disk-partitions disk))))) <---


(define (create-special-user-partitions partitions)
  "Return a list with a <user-partition> record describing the ESP partition
found in PARTITIONS, if any."
  (filter-map (lambda (partition)
                (and (esp-partition? partition)
                     (partition->user-partition partition))) <----
              partitions))

I think create-special-user-partitions and the form above is automatically
trying to keep existing UEFI ESP partitions of the user.

And partition->user-partition failed for (existing) fat16 partitions.

So the fix of adding fat16 was definitely the right one for that specific
file system type.

It should be fine now.

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