Quick fix for e2fsprogs, com_err, and ss blockers

Message

richard.scott · Post by **richard.scott** » Tue Oct 28, 2008 12:25 pm

Hi,

Following the reading of lots of posts on these recent blockers I'd like to post my 2p worth on how I fixed it:

# echo "<=app-crypt/mit-krb5-1.6.3-r2" >> /etc/portage/package.keywords
# emerge --sync
# emerge -f e2fsprogs e2fsprogs-libs
# emerge --unmerge ss com_err e2fsprogs
# emerge e2fsprogs e2fsprogs-libs

You'll also need to upgrade mit-krb5 as this is the root cause of the blocked packages.

Don't worry, the contents of ss and com_err now seem to be included in e2fsprogs so you don't have to re-emerge them!

Hope this helps someone

Rich
p.s any chance we can make this post sticky for a while??
Seems reasonable...stuck. Interested parties may also wish to check [bug=234907]the bug[/bug].
--timeBandit

For those only now encountering this block, or others like it, updating to a version of sys-apps/portage in the 2.2 or 2.1.6 or later series should allow emerge to resolve the block automatically unless the libraries which would be removed and replaced are members of the world set. -- desultory
Unstuck as the problem has been addressed in more recent versions of portage. -- desultory

szczerb · Post by **szczerb** » Tue Oct 28, 2008 12:33 pm

I'd suggest "<=app-crypt/mit-krb5-1.6.3-r2". This version resolves the issue and won't cause upgrading mit-krb5 to a new unstable version every time such is available.

richard.scott · Post by **richard.scott** » Tue Oct 28, 2008 12:36 pm

oooh!, cool, thanks for the tip

I've edited the original post now.

Rcomian · Post by **Rcomian** » Tue Oct 28, 2008 1:07 pm

I can confirm that this works on my two machines, which run different versions of portage but which both hit this problem at the same time.

Can I second that this should be a sticky on the forums.

Also, there is a spurious quote mark on the end of the first line.

How on earth did this problem hit live/stable? It been a known problem since at least 24th August ...
http://bugs.gentoo.org/show_bug.cgi?id=235619

Gentoo devs, please - nothing on the front page warning us? Nothing in gentoo planet? No notice when we run the commands about what to do? No warning that the normal workarounds can leave you unable to download sources for the replacement packages?

This is not good, thank you richard for finding the magic sauce to make this work.

gerard27 · Post by **gerard27** » Tue Oct 28, 2008 1:09 pm

Well it doesn't work for me.
Frustrating to say the least.
Gerard.

Edit:After some more emerge --unmerge I got my box working again.
Thanks all.

Rcomian · Post by **Rcomian** » Tue Oct 28, 2008 1:16 pm

Gerard van Vuuren:

Could you add in exactly what other packages you had to unmerge to get this working? Might be helpful for others.

Fenixoid · Post by **Fenixoid** » Tue Oct 28, 2008 1:27 pm

Yeah, that would be very nice, because if I don't repair my gentoo (running on enterprise server with angry users) - I'l be dead soon

richard.scott · Post by **richard.scott** » Tue Oct 28, 2008 1:31 pm

Fenixoid wrote:Yeah, that would be very nice, because if I don't repair my gentoo (running on enterprise server with angry users) - I'l be dead soon

The packages listed on my initial post are all you need to remove and re-install i.e. remove ss, com_err and e2fsprogs

You need to remember to fetch the packages before uninstalling anything as the uninstall of ss and com_err can sometimes break wget.

szczerb · Post by **szczerb** » Tue Oct 28, 2008 1:43 pm

If you get screwd just follow my steps

1. Boot the minimal
2. chroot as in the handbook
3. try to emerge something and wget will complain about some lib file (com_err.so I think....)
4. on a VT without the chroot copy this file from /lib on the cd to /mnt/gentoo/lib
5. now wget will work and you can do whats in the first post

oliver · Post by **oliver** » Tue Oct 28, 2008 1:53 pm

szczerb wrote:If you get screwd just follow my steps :)

1. Boot the minimal
2. chroot as in the handbook
3. try to emerge something and wget will complain about some lib file (com_err.so I think....)
4. on a VT without the chroot copy this file from /lib on the cd to /mnt/gentoo/lib
5. now wget will work and you can do whats in the first post :)

I think if you could have got the sys-libs/com_err pkg from http://tinderbox.dev.gentoo.org/default-linux/ onto your box and extracted it, you could have avoided the boot from CD.... Luckily for me, ncftp still worked when wget didn't so I got around things that way

snIP3r · Post by **snIP3r** » Tue Oct 28, 2008 2:10 pm

hi all!

this is very frustrating to me

the earlier method unmerging the blocking package(s) and then re-emerge them do not seem to work. there are many posts about this problem and many suggestions on how to fix this. i think i found the reason for my blocks:

net-fs/nfs-utils-1.1.3

area52 ~ # emerge -uavDN world

These are the packages that would be merged, in order:

Calculating world dependencies... done!
[ebuild U ] sys-fs/e2fsprogs-1.41.2 [1.40.9] USE="nls (-static%)" 4,263 kB
[ebuild N ] sys-libs/e2fsprogs-libs-1.41.2 USE="nls" 479 kB
[ebuild U ] net-fs/nfs-utils-1.1.3 [1.1.0-r1] USE="tcpd -kerberos -nonfsv4" 793 kB
[blocks B ] sys-libs/e2fsprogs-libs (is blocking sys-libs/ss-1.40.9, sys-lib s/com_err-1.40.9)
[blocks B ] sys-libs/ss (is blocking sys-libs/e2fsprogs-libs-1.41.2)
[blocks B ] <sys-fs/e2fsprogs-1.41 (is blocking sys-libs/e2fsprogs-libs-1.41 .2)
[blocks B ] sys-libs/com_err (is blocking sys-libs/e2fsprogs-libs-1.41.2)

but i am not sure how to fix this and which method i schould use? unmerging ss and com_err are suggested to make wget not working anymore. but why? on gentoo-portage.com i cannot find any dependency between wget and com_err/ss...
will this issue be fixed in further portage updates? if so, i can safely wait a few days for a clean portage tree...

snIP3r

Dan · Post by **Dan** » Tue Oct 28, 2008 2:17 pm

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emerge -f e2fsprogs e2fsprogs-libs && emerge -C com_err ss && emerge e2fsprogs e2fsprogs-libs

snIP3r · Post by **snIP3r** » Tue Oct 28, 2008 2:29 pm

Dan wrote:

Code: Select all

emerge -f e2fsprogs e2fsprogs-libs && emerge -C com_err ss && emerge e2fsprogs e2fsprogs-libs

hi dan!

thx for the very fast answer. but i had to unmerge e2fsprogs too to get the last emerge work. but if i then try a emerge -uavDN world i get this:

Code: Select all

[blocks B     ] sys-libs/ss (is blocking sys-libs/e2fsprogs-libs-1.41.2)
[blocks B     ] sys-libs/com_err (is blocking sys-libs/e2fsprogs-libs-1.41.2)
[blocks B     ] sys-libs/e2fsprogs-libs (is blocking sys-libs/ss-1.40.9, sys-libs/com_err-1.40.9)

even if ss and com_err are not installed anymore on the system but portage wants them to be installed again...

EDIT: the good thing is that wget is running so i can install packages...

snIP3r

richard.scott · Post by **richard.scott** » Tue Oct 28, 2008 2:37 pm

sounds like you have app-crypt/mit-krb5 installed.
The stable versions of that will pull them back in.

you need to unmask the latest that doesn't do that:

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echo "<=app-crypt/mit-krb5-1.6.3-r2" >> /etc/portage/package.keywords

and try again.

snIP3r · Post by **snIP3r** » Tue Oct 28, 2008 2:43 pm

richard.scott wrote:sounds like you have app-crypt/mit-krb5 installed.
The stable versions of that will pull them back in.

you need to unmask the latest that doesn't do that:
Code: Select all
echo "<=app-crypt/mit-krb5-1.6.3-r2" >> /etc/portage/package.keywords
and try again.

oh, i first thought i havent installed it but it is.
but now: perfect. that works!

actually on two of my machines....

thx
snIP3r

cgmd · Post by **cgmd** » Tue Oct 28, 2008 3:41 pm

I need help, now...

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 # emerge -f e2fsprogs e2fsprogs-libs
sudo: error while loading shared libraries: libcom_err.so.2: cannot open shared object file: No such file or directory

This started when I tried to unmerge the blocker:

Code: Select all

 emerge -aC e2fsprogs

Now my related libraries are a terrible mess!

What to do???????

gerard27 · Post by **gerard27** » Tue Oct 28, 2008 3:51 pm

Sorry for not answering sooner,was browsing OTW.
I don't quite recall what I unmerged but in the end
I followed richardscott's "recipe" and it all worked again.
Gerard.

oliver · Post by **oliver** » Tue Oct 28, 2008 3:58 pm

cgmd wrote: What to do???????

Not sure where the sudo comes in, but the 'emerge -f' should come before the 'emerge -C'

You can get the missing com_err files from http://tinderbox.dev.gentoo.org/default-linux/ and untar it or follow the boot from cd advice earlier in this thread

Aurisor · Post by **Aurisor** » Tue Oct 28, 2008 4:12 pm

Worked for me, thanks!

cgmd · Post by **cgmd** » Tue Oct 28, 2008 4:14 pm

oliver wrote:
cgmd wrote: What to do???????
Not sure where the sudo comes in, but the 'emerge -f' should come before the 'emerge -C'

You can get the missing com_err files from http://tinderbox.dev.gentoo.org/default-linux/ and untar it or follow the boot from cd advice earlier in this thread

I would like to untar the com_err files rather than the cd boot. My system is x66...

Starting with http://tinderbox.dev.gentoo.org/default-linux/ , what file must I then look for?

Thanks!

mindful · Post by **mindful** » Tue Oct 28, 2008 4:15 pm

After monkeying with this for an hour I came up with the following.

1. echo "=app-crypt/mit-krb5-1.6.3-r4" >> /etc/portage/package.keywords (keyword app-crypt/mit-krb5-1.6.3-r4 because all previous versions pull in sys-libs/ss and sys-libs/com_err)

2. emerge -f sys-libs/e2fsprogs-libs (manually download sys-libs/e2fsprogs-libs since wget will not function properly after you have removed sys-libs/com_err)

3. emerge -Cav sys-libs/ss sys-libs/com_err sys-libs/e2fsprogs (remove conflicting libraries)

4. emerge -av sys-libs/e2fsprogs-libs sys-libs/e2fsprogs (rebuild all that seemed broken)

depontius · Post by **depontius** » Tue Oct 28, 2008 4:24 pm

I had no trouble with this, this morning

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emerge -atuvDN world ( shows blockers )
qpkg com_err ss e2fsprogs
emerge -C com_err ss e2fsprogs
emerge -atuvDN world

All went just fine. I didn't have to force the install of e2fsprogs-libs, and the emerge that brought everything back to snuff had no problems. Now I'm not sure why. I'd seen this buzzing around, about a month ago, so knew there might be some problems. But for some reason, I didn't bother searching here first. I guess I was lucky, and will be more careful before upgrading my home systems.

oliver · Post by **oliver** » Tue Oct 28, 2008 4:27 pm

cgmd wrote: I would like to untar the com_err files rather than the cd boot. My system is x66...

Starting with http://tinderbox.dev.gentoo.org/default-linux/ , what file must I then look for?

Follow the link for your architecture (probably x86?) then go to sys-libs and you'll see com_err in there

stick the file in your / and run

tar xjpvf /com_err*

you might get a warning... I think you can ignore it

ianw1974 · Post by **ianw1974** » Tue Oct 28, 2008 4:58 pm

I did this without having to edit package.keywords for mit-krb5.

Of course, an emerge -uDN world now shows that ss and com_err are wanting to be installed, but cannot because of e2fsprogs!

Code: Select all

These are the packages that would be merged, in order:

Calculating world dependencies... done!
[ebuild  N    ] sys-libs/com_err-1.40.9  USE="nls" 0 kB
[ebuild  N    ] sys-libs/ss-1.40.9  USE="nls" 0 kB
[blocks B     ] sys-libs/ss (is blocking sys-libs/e2fsprogs-libs-1.41.2)
[blocks B     ] sys-libs/com_err (is blocking sys-libs/e2fsprogs-libs-1.41.2)
[blocks B     ] sys-libs/e2fsprogs-libs (is blocking sys-libs/ss-1.40.9, sys-libs/com_err-1.40.9)

Code: Select all

[ Searching for package 'mit-krb5' in all categories among: ]
 * installed packages
[I--] [  ] app-crypt/mit-krb5-1.6.3-r1 (0)

so is it safe to remove mit-krb5 and just not have it at all?

richard.scott · Post by **richard.scott** » Tue Oct 28, 2008 5:02 pm

if you upgrade your app-crypt/mit-krb5 to 1.6.3-r2 you won't be asked to re-install ss or com_err as it knows to use e2fsprogs