#323 Issue closed: Rear cannot create ISO image bigger then 4 GB¶

Labels: bug

gdha opened issue at 2013-11-04 10:28:¶

2013-11-04 10:43:55 Including output/ISO/Linux-i386/81_prepare_multiple_iso.sh
2013-11-04 10:43:55 Making additionnal ISO image : rear-lnx02_01.iso
genisoimage 1.1.8 (Linux)
Scanning .
Scanning ./backup
File ./backup/backup.tar.gz.01 is larger than 4GiB-1.
There is no way do represent this file size. Aborting. See -iso-level 3 or -allow-limited-size options
2013-11-04 10:43:57 ERROR: Could not create ISO image rear-lnx02_01.iso (with /usr/bin/mkisofs)

From the man page of mkisofs:

-allow-limited-size
When processing files larger than 2GiB which cannot be represented in ISO9660 level 1 or 2, add them with a shrunk visible file size to ISO9660 and with the correct visible file size to the UDF system. The result is an inconsistent filesystem and users need to make sure that they really use UDF rather than ISO9660 driver to read a such disk. Implies enabling -udf. See also -iso-level 3

gdha commented at 2013-11-04 10:33:¶

Ran into above error with a configuration like the following (rescue+backup on same ISO image(s)):

#-> grep -v \# /etc/rear/local.conf
OUTPUT=ISO
BACKUP=NETFS
BACKUP_URL=iso://backup
ISO_MAX_SIZE=4500
OUTPUT_URL=nfs://lnx01/vol/linux_images_dr/rear

Useful link is http://filesharingtalk.com/threads/255579-How-do-I-burn-an-UDF-dvdr-with-Linux

schlomo commented at 2013-11-07 20:20:¶

Yes, ISO is limited. Do you feel like submitting an UDF patch?

Is there a reason against always doing UDF? What about booting off UDF
media?

On 4 November 2013 11:33, gdha notifications@github.com wrote:

Ran into above error with a configuration like the following
(rescue+backup on same ISO image(s)):

#-> grep -v # /etc/rear/local.conf
OUTPUT=ISO
BACKUP=NETFS
BACKUP_URL=iso://backup
ISO_MAX_SIZE=4500
OUTPUT_URL=nfs://lnx01/vol/linux_images_dr/rear

Useful link is
http://filesharingtalk.com/threads/255579-How-do-I-burn-an-UDF-dvdr-with-Linux

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Reply to this email directly or view it on GitHubhttps://github.com/rear/rear/issues/323#issuecomment-27676148
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gdha commented at 2013-11-08 07:39:¶

need some testing and we may not break older distro's

gdha commented at 2013-12-03 12:06:¶

tests were successful on fedora20 beta.

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[Export of Github issue for rear/rear.]