592358 – LiveDVD Package selection: Add USE=lzo to app-arch/libarchive

Bug 592358 - LiveDVD Package selection: Add USE=lzo to app-arch/libarchive

Summary: LiveDVD Package selection: Add USE=lzo to app-arch/libarchive

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Release Media
Classification:	Unclassified
Component:	LiveCD/DVD/USB (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo Release Team

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Depends on:
Blocks:	378027
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Reported:	2016-08-29 06:58 UTC by Klaus Kusche
Modified:	2017-02-07 01:11 UTC (History)
CC List:	0 users

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Package list:
Runtime testing required:	---

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Description Klaus Kusche 2016-08-29 06:58:07 UTC

Package selection for LiveDVD: 
Please add USE=lzo to app-arch/libarchive.

Reason:
libarchive contains bsdtar, which we use for system backup and restore,
also for emergency restore after booting from a LiveDVD.

We have lzo compressed backups.
However, the bsdtar currently contained on LiveDVD understands 
neither lzo nor lz4 compression and hence can't restore lzo compressed backups.

Lzo and lz4 are the only compressions which are fast enough to compress 
large backups in real time, at disk speed (compression speed at least 200 MB/s).

All compressions currently supported by bsdtar on the LiveDVD
are by far too slow to be used for backup purposes (all less than 30 MB/s).

Adding USE=lzo should not increase the size of the LiveDVD significantly,
because the required lib dev-libs/lzo is already contained on the LiveDVD,
it's just not linked into libarchive.

Comment 1 Fernando (likewhoa) 2016-08-29 19:26:00 UTC

Makes sense, will include in future release.

Comment 2 Jorge Manuel B. S. Vicetto (RETIRED) Gentoo Infrastructure

2017-02-07 01:11:52 UTC

I'm closing per request of Fernando on #gentoo-releng.