Release Engineering

Tasklist

FS#30378 - [archiso] add support for btrfs

Attached to Project: Release Engineering
Opened by Christian Hesse (eworm) - Wednesday, 20 June 2012, 14:20 GMT
Last edited by Eric Belanger (Snowman) - Saturday, 25 August 2012, 13:10 GMT
Task Type Feature Request
Category ArchISO
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version testbuild (specify!)
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

The absence of working fsck for btrfs should not be a problem for a live medium. I would like to have btrfs support in building archiso live media. Patch is attached.
   archiso_btrfs.patch (0.8 KiB)
This task depends upon

Closed by  Eric Belanger (Snowman)
Saturday, 25 August 2012, 13:10 GMT
Reason for closing:  Implemented
Additional comments about closing:  Implemented https://projects.archlinux.org/archiso.g it/commit/?id=a1424446a181a81dfd6433085f b64970882dac3d
Comment by Gerardo Exequiel Pozzi (djgera) - Thursday, 21 June 2012, 14:59 GMT
btrfs-progs is not part of {base} group, but it can be added as optional.

how better is btrfs for this kind of dm-snapshot scheme? (space usage of COW images, ...)
Comment by Christian Hesse (eworm) - Thursday, 21 June 2012, 18:23 GMT
The compressed image is slightly bigger than the ext4 one, even in mixed mode. However inside the live system you can remount the filesystems with compress support:

mount -o remount,compress /

This writes files compressed to the cow image, saving RAM size. This is very useful when installing packages or writing file inside live system with limited RAM.

If you like I will provide a patch for archiso initramfs hook to remount automatically.
Comment by Gerardo Exequiel Pozzi (djgera) - Friday, 22 June 2012, 05:41 GMT
Do not worry about that, I have in my TODO, to pass mount options via aitab and via bootparam ;)

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