Package: os-prober Version: 1.63 Severity: wishlist Tags: upstream Dear Maintainer,
The new blkid in util-linux-2.24 is able to recognize the extend partition, but os-prober relies on the return value "2" (exit_not_found) of blkid to skip processing the extend partition. Then, with the new version of util-linux, os-prober will try to mount the extend partition with FS types found in the system, which is dangerous. e.g., # fdisk -l .... Device Boot Start End Blocks Id System /dev/sda1 * 63 252847034 126423486 7 HPFS/NTFS/exFAT /dev/sda2 252847035 625137344 186145155 5 Extended /dev/sda5 252847098 253425374 289138+ 83 Linux /dev/sda6 385254828 482913899 48829536 83 Linux .... blkid 2.24-2 --- # blkid /dev/sda2 /dev/sda2: PTTYPE="dos" PARTUUID="28b48ca1-02" # echo $? 0 # blkid -o value -s TYPE /dev/sda2 # no output # echo $? 0 blkid 2.20.0 --- # blkid /dev/sda2 # no output # echo $? 2 # blkid -o value -s TYPE /dev/sda2 # no output # echo $? 2 Affected os-prober code: --- File: /usr/lib/os-probes/50mounted-tests - 8 types="$(fs_type "$partition")" || types=NOT-DETECTED 9 if [ "$types" = NOT-DETECTED ]; then 10 debug "$1 type not recognised; skipping" 11 exit 0 With the old blkid (util-linux-2.20), os-prober will just skip here when handling /dev/sda2, but with the new version of blkid, os-prober will go on and try to mount /dev/sda2 with FS types found in the system, which causes lots of errors, even kernel calltrace when trying xfs. This is not a problem now because util-linux-2.20 is currently used, but when someday util-linux-2.24 is introduced in, this would be a serious problem. -- System Information: Debian Release: jessie/sid APT prefers testing-updates APT policy: (500, 'testing-updates'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.12-1-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages os-prober depends on: ii libc6 2.17-97 os-prober recommends no packages. os-prober suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
