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path: root/functions/losetup.sh
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2020-05-01Replace 'which' with 'command -v' to test for the existance of an executablejohnraff
This is considered to be more robust. Two instances remain: scripts/build/chroot_archives, line 257: if [ "${LB_APT}" = "aptitude" ] && [ ! $(Chroot chroot "which aptitude") ] The command is run inside a chroot where the environment might be special, and would need further testing. manpages/Makefile, line 42: @if [ ! -x "$$(which po4a 2>/dev/null)" ]; \ I am insufficiently familiar with makefile syntax to edit this.
2020-03-16use local scope for private function varsLyndon Brown
all vars affected have been carefully checked to be quite certain that they are definitely local where variable is assigned the return value of a function/command, the local "declaration" is deliberately done on a separate line, since `local FOO` is actually treated itself as a command rather than a declaration; will thus always cause $? to be zero, and thus if done on the same line as such an assignment can not only clobber $? but in doing so unintentionally blocks failure of a command from triggering the expected exit from having `set -e`. also, from testing, i have found that when assigning "${@}" this must be done on a separate line confusingly as otherwise an error occurs. Gbp-Dch: Short
2020-03-12Revert "Test for executables: replace 'which' with more robust 'command -v'"Luca Boccassi
This reverts commit 2d9ab1f7f82f9a98b97d1503c1e3f31c86061c15. Causes test failure due to bashism.
2020-03-12Test for executables: replace 'which' with more robust 'command -v'johnraff
Instances of: if [ $(which <command> ] have been replaced with: if command -v <command> >/dev/null which is considered to be more robust in a range of environments. scripts/build/chroot_archives: line 259: if [ "${LB_APT}" = "aptitude" ] && [ ! $(Chroot chroot "which aptitude") ] has been left untouched because the chroot might require a more complex command which would need more testing. manpages/Makefile: line 42: @if [ ! -x "$$(which po4a 2>/dev/null)" ]; \ has been left untouched because I am not sufficiently familiar with makefiles.
2020-03-12remove obsolete loop-aes-utils related losetup hackLyndon Brown
677415f6d7efc1e5b888570d70af311d2900c69c (2007) in v1.0~a2-1 added a hack relating to the loop-aes-utils package and losetup. this commit bundled a bunch of changes, it was not specific to the hack, and so info about the hack is limited to a brief comment included within the related change in defaults: ``` # Workaround for loop-aes-utils divertion # (loop-aes-utils' losetup lacks features). ``` though it is very similar to the removed fdisk hack in that it seems that one package may replace a binary from another, moving the original to a new location, and this hack gives the user the opportunity to select the original instead of the one put in its place, for use in LB. the comment mentions a package called loop-aes-utils as being the package that performs such a diversion, and that the need for the hack was that losetup itself lacked features, presumably encryption support, and it is clear that it is the losetup binary that is the focus of the diversion. looking into the history of loop-aes-utils a little, this package was dropped from debian back in 2012 (#680748), favouring encrytion support of dm-crypt/cryptsetup. double checking file contents of packages, only the mount package carries an /sbin/losetup file, so presumably this means that dm-setup/cryptsetup do not perform such a diversion of losetup (i.e. their use is exclusively done directly). since the possible diversion is simply gone, that completely removes any point in having the hack of giving users choice between losetup and the diverted one. so let's remove this obsolete hack...
2020-03-11remove obsolete fdisk hackLyndon Brown
8321653cb36511324d576e65cb13b5c9b0c5f438 (from 2007) introduced a hack to work around bug #445304 in gnu-fdisk for users who may have replaced fdisk with the classic gnu version. the hack allowed users to select an alternate fdisk binary to use to work around the buggy binary. bug #445304 is marked as found in v1.0-1 and fixed in v1.2-1, though may have been fixe din v1.1. it was marked fixed in 2009. checking the package archive, gnu-fdisk does not actually exist anymore in debian, with one exception - it is available for arm64 on sid via debports, and that version is 1.3 so thus includes the necessary fix anyway. it is thus pointless now that we still carry this hack. Gbp-Dch: Short
2020-03-11amend copyright & licensing blocksLyndon Brown
Current versions of the project files are built upon versions published and licensed by Daniel Baumann, but are modified copies of those files and thus need to be marked as such per licensing requirements (afaik he did not pass along ownership / licensing rights to anyone when he left the project). We should also be careful to not be misrepresenting such modified copies as being attributed to Daniel. Adding a new copyright line referring to "The Debian Live team" should suffice for this. The authorship block in man pages has also similarly been updated. Notes: - tweaked a copy of daniel copyright lines stating 2014 instead of 2015. both of these cases were in files that i had personally introduced in some of my past merged commits that moved some code around. i don't know why they stated 2014. - binary_onie was introduced in 2018, so that has a 2018 date instead of 2016 unlike the rest. - 'efi-image' is a 3rd-party (Canonical Ltd) work that we bundle, but it has been modified by 674794a8f4d61a729d2dbd6d99385d2826138694 and 36a3ba76347ef72df1c316312ed3a26aa4b0c816 so I similarly added a debian live copyright line. - 'grub-cpmodules' is similar. it was only changed by the indentation fix of 36a3ba76347ef72df1c316312ed3a26aa4b0c816 but modification is modification, and this does help cover any possible future changes that might be made.
2020-03-09fix consistency in binary execution and existance checkingLyndon Brown
- prefer using `which` over hard coded paths - it is redundant to check that the bin pointed to the return of `which` exists and is executable, `which` already gives us assurance of that if it returns true! - the redirection of output (`2>/dev/null`) seems to be unnecessary from my testing. the instances relatnig to fdisk and losetup in functions/defaults.sh have been left as they are since they get executed by `lb config` which can run without sudo elevation unlike `lb build` and in that case `which` would fail to find these binaries resulting in error. this also fixes a bug showing an error for missing debootstrap - this tool requires sudo privileges to run and thus is not found via a none elevated which search. Gbp-Dch: Short Closes: #952927
2017-09-01Pass --partscan to losetupMatthijs Kooijman
Recent versions of Linux, parted or some other bit of software cause partition devices, like /dev/loop0p1 to be created when running parted mkpart. However, these devices are not cleaned up when running losetup -d to remove /dev/loop0 later, so they linger around and confuse mkfs (which refuses to make a filesystem, thinking there are partitions): mkfs.fat 4.1 (2017-01-24) mkfs.vfat: Partitions or virtual mappings on device '/dev/loop0', not making filesystem (use -I to override) To prevent this behaviour, pass --partscan to losetup when adding a new partition, to clean up any lingering partitions. It seems losetup does not accept --partscan when deleting a loop device, to clean up at that point, but since binary_hdd mounts the partition last, there should not be any lingering partition devices after live-build is done. The --partscan option is available since util-linux 2.21 (released in 2012), so it should be fairly safe to pass it unconditionally.
2016-04-16Include ext{3,4} journal size when calculating image sizeKristian Klausen
Fix #801712
2015-01-04Updating year in copyright notices to 2015.Daniel Baumann
2014-02-08Updating copyright notices for 2014.Daniel Baumann
2013-05-06Removing all references to my old email address.Daniel Baumann
2013-05-06Increasing oversizing factor of ext* filesystems from 5 to 6%.Raphaël Hertzog
At least on armel with ext4, 5% turned out to not be enough in some use cases. With 6% the failure was gone.
2013-05-06Removing incomplete support for root-command.Daniel Baumann
2013-05-06Updating year in all copyright notices.Daniel Baumann
2013-05-06Adding debian version 4.0~a1-1.debian/4.0_a1-1Daniel Baumann
2013-01-01Updating year in all copyright notices.Daniel Baumann
2012-07-30Updating GPL standard header in all files.Daniel Baumann
2012-02-06Updating year in copyright notices for 2012.Daniel Baumann
2011-11-04Also setting 5% margin for ext4 images, thanks to Neil Wilson ↵Daniel Baumann
<neil@aldur.co.uk> for spotting it (Closes: #647601).
2011-08-27Only calling udevadm in losetup function when udev is installed on the host ↵Daniel Baumann
system.
2011-07-21Adding function for more resilient detachment of loopback devices.Cody A.W. Somerville
2011-03-09Updating year in hooks and script files.Daniel Baumann
2011-03-09Adding debian version 3.0~a1-1.Daniel Baumann
2011-03-09Updating year in manpage, hooks, script and template files.Daniel Baumann
2011-03-09Updating internal variables from lh to lb scheme, should be the last piece ↵Daniel Baumann
to finish the live-helper to live-build rename.
2011-03-09Updating copyright headers for live-build.Daniel Baumann
2011-03-09Updating year to 2010 in copyright notices.Daniel Baumann
2011-03-09Fixing intermittent truncating of filesystem.Cody A.W. Somerville
2011-03-09Correcting typo in default values assignment of losetup functions.Daniel Baumann
2011-03-09Updating year in copyright notices for 2009.Daniel Baumann
2011-03-09Don't use set -e in sourced functions, this is the job of the actual ↵Daniel Baumann
executed script.
2011-03-09Refactor partition size calculation, ensuring a uniform increase for ext ↵Chris Lamb
partitions.
2011-03-09Adding last modifications in order to have localization fully working in ↵Tiago Bortoletto Vaz
live-helper. This commit goes with some pt_BR translations just for testing. Thanks to Antonio Terceiro for helping and coding in some shell stuff.
2011-03-09functions/losetup.sh: use SECTORS as variable name to reflect the real usageOtavio Salvador
2011-03-09Updating copyright years to 2008.Daniel Baumann
2011-03-09Consistently using the pipe as seperator in sed commands now.Daniel Baumann
2011-03-09Fixing typing error.Daniel Baumann
2011-03-09Moving lh_losetup into an internal function, avoiding helper failure with ↵Daniel Baumann
return value due to new trap.