diff options
Diffstat (limited to 'hurd')
| -rw-r--r-- | hurd/documentation/translators.html | 2 | ||||
| -rw-r--r-- | hurd/running/debian/porting.mdwn | 4 | ||||
| -rw-r--r-- | hurd/translator.mdwn | 1 | ||||
| -rw-r--r-- | hurd/translator/ext2fs.mdwn | 51 | ||||
| -rw-r--r-- | hurd/translator/ufs.mdwn | 38 |
5 files changed, 54 insertions, 42 deletions
diff --git a/hurd/documentation/translators.html b/hurd/documentation/translators.html index e455f730..348774d1 100644 --- a/hurd/documentation/translators.html +++ b/hurd/documentation/translators.html @@ -212,7 +212,7 @@ I recommend that you start by reading the <code>/bin/mount</code> command, it is only a small script. Because setting filesystem translators is similar to mounting partitions, you can easily grasp the concept this way. Make a file system image with <code>dd if=/dev/zero of=dummy.fs bs=1024k -count=8; /sbin/mke2fs dummy.fs</code> and "mount" it with <code>settrans -c dummy +count=8; /sbin/mke2fs -E root_owner=$UID:0 dummy.fs</code> and "mount" it with <code>settrans -c dummy /hurd/ext2fs `pwd`/dummy.fs</code>. Note that the translator is not started yet, no new <code>ext2fs</code> process is running (verify with <code>ps Aux</code>). Check that everything is correct using <code>showtrans</code></p> diff --git a/hurd/running/debian/porting.mdwn b/hurd/running/debian/porting.mdwn index 77519c8f..28fcb9b4 100644 --- a/hurd/running/debian/porting.mdwn +++ b/hurd/running/debian/porting.mdwn @@ -17,9 +17,9 @@ More than half of the Debian archive has been compiled successfully on the Hurd, however, many programs fail to build for various reasons. A [list of build failures including error -messages](https://people.debian.org/~sthibault/failed_packages.txt) can be +messages](https://people.debian.org/~sthibault/hurd-i386/failed_packages.txt) can be found, as well as a [preliminary -analysis](http://lists.debian.org/debian-hurd/2007/07/msg00000.html) of them and [solutions](http://lists.debian.org/debian-hurd/2007/07/msg00001.html), and some more details in [[hurd/porting/guidelines]]. [Graphs and statistics](http://people.debian.org/~sthibault/) about the consequence in terms of build dependencies are available. +analysis](http://lists.debian.org/debian-hurd/2007/07/msg00000.html) of them and [solutions](http://lists.debian.org/debian-hurd/2007/07/msg00001.html), and some more details in [[hurd/porting/guidelines]]. [Graphs and statistics](http://people.debian.org/~sthibault/hurd-i386/) about the consequence in terms of build dependencies are available. There is a mailing list, [debian-hurd-build-logs](http://lists.alioth.debian.org/mailman/listinfo/debian-hurd-build-logs), diff --git a/hurd/translator.mdwn b/hurd/translator.mdwn index dad26881..ec5996b0 100644 --- a/hurd/translator.mdwn +++ b/hurd/translator.mdwn @@ -99,7 +99,6 @@ The [[concept|concepts]] of translators creates its own problems, too: * [[storeio]] * [[ext2fs]] * [[fatfs]] -* [[ufs]] * [[magic]] * [[mtab]] * [[unionfs]] diff --git a/hurd/translator/ext2fs.mdwn b/hurd/translator/ext2fs.mdwn index 957b9c13..9be6c885 100644 --- a/hurd/translator/ext2fs.mdwn +++ b/hurd/translator/ext2fs.mdwn @@ -32,6 +32,57 @@ Extend ext2fs to support 64bit time. [[!inline pagenames=faq/2_gib_partition_limit raw=yes feeds=no]] +## Create your own custom ext2fs + + $ dd if=/dev/zero of=silly.fs bs=1024k count=8 + $ /sbin/mkfs.ext2 -E root_owner=$UID:0 silly.fs + $ settrans -c silly /hurd/ext2fs `pwd`/silly.fs + $ ps -e | grep silly # ext2fs has not started + $ ls silly + $ ps -e | grep silly | awk '{ print $6 " " $7 }' + /hurd/ext2fs /home/joshua/silly.fs + $ cd silly + $ echo 'hello' > hello.txt + $ mkdir silly-dir + $ cd .. + $ fsysopts silly + /hurd/ext2fs --writable --relatime --no-inherit-dir-group /home/joshua/silly.fs + $ fsysopts silly --readonly # stop writes to the filesystem + $ fsysopts silly --writable # let writes again + +Try to make the filesystem read-only with fsysopts. Note how further +write attempts fail now. Try to kill the active translator with +settrans -g. + +You could go crazy even! Why not make something like this: + + ~/silly <--> silly.fs + | \ + | \ + | \ + | \ + | \ + \|/ \/ + silly1 <-> silly1.fs + ... + + /hurd/joshua/silly/silly1/silly2/silly3/silly4 + +Each sillyN is another ext2fs filesystem! Make sure that as N gets +bigger sillyN.fs gets smaller. Let us know in the `#hurd` [irc +channel](https://web.libera.chat/) how "silly" you are. :) + +The current record is 2! + + $ ps -e | grep silly | awk '{print $6 " " $7}' + /hurd/ext2fs /home/joshua/silly.fs + /hurd/ext2fs /home/joshua/silly/silly1.fs + +What is the limit? How many nested ext2fs translators can you have? +You could have 32 ["silly" +directories](https://logs.guix.gnu.org/hurd/2024-05-31.log#005021). +That's very silly! + ### Ognyan's Work to allow ext2 to surpass the 2 GiB limit * Ognyan Kulev, [[*Supporting Large ext2 File Systems in the diff --git a/hurd/translator/ufs.mdwn b/hurd/translator/ufs.mdwn deleted file mode 100644 index 9e9c6f75..00000000 --- a/hurd/translator/ufs.mdwn +++ /dev/null @@ -1,38 +0,0 @@ -[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled [[GNU Free Documentation -License|/fdl]]."]]"""]] - -The `ufs` translator supports some kind of the Unix File System. Beware, we're -not aware of anybody having used/tested it in ages, so maybe it is very broken -and will eat your data. - - -# IRC, freenode, #hurd, 2013-08-30 - -[[!tag open_issue_hurd]] - - <Arne`> There might be a copyright problem: <nalaginrut> well, there seems - BSD-4clauses in the code: - https://git.savannah.gnu.org/cgit/hurd/hurd.git/tree/ufs/alloc.c - <Arne`> braunr, tschwinge: Do you have any info on that? 4-clause BSD and - GPL on the same code are a license incompatibility… - <tschwinge> Arne`: I've put it onto my (long) TODO list. - <tschwinge> Easiest solution might be: rm -rf ufs. - <nalaginrut> will these affected code rewritten? or just modify license? - <mark_weaver> only the regents of the University of California could choose - to modify the license. - <youpi> nalaginrut: one can't modify a licence if one is not the author - <youpi> we can simply dump the code - <mark_weaver> s/author/owner/ - <tschwinge> As I suppose ufs is unused/untested for a decade or so, I'd - have no issues with simply removing it from the tree, together with - ufs-fsck and ufs-utils. - <pinotree> tschwinge: or maybe extract the ufs stuff in an own repo, to be - imported as branch in incubator or own hurd/ufs.git? - <tschwinge> Sure, why not. |