Re: [gentoo-user] look for a file type + sort
* Canek Peláez Valdés can...@gmail.com [13.09.2013. @00:16:51 -0500]:
On Fri, Sep 13, 2013 at 12:11 AM, Joseph syscon...@gmail.com wrote:
On 09/13/13 00:04, Canek Peláez Valdés wrote:
On Thu, Sep 12, 2013 at 11:58 PM, Canek Peláez Valdés can...@gmail.com
wrote:
On Thu, Sep 12, 2013 at 11:48 PM, Joseph syscon...@gmail.com wrote:
I want to list recursively certain type of files eg. *.pdf but I want to
display: date, path and newest file first.
What is the easiest way of doing it?
ls -l --sort=time $(find /path -iname *.pdf)
If there are no spaces in the filenames/directories, you can drop the
quotes from $().
Sorry, it doesn't work with spaces even with the quotes; if you don't
have spaces in the directories/filenames, do
ls -l --sort=time $(find /path -iname *.pdf)
If you have spaces, you need to set/restore IFS:
S=${IFS}; IFS=$'\n'; ls -l --sort=time $(find . -iname *.pdf); IFS=${S}
Regards.
--
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México
Hm, I've tried:
ls -l --sort=time $(find /home/joseph -iname *.jpg)
got:
ls: invalid option -- '/'
The exact same command (changing joseph with canek) works for me,
except in directories/filenames with spaces, as expected. Do you have
an alias for ls? What does find /home/joseph -iname *.jpg returns?
Regards.
--
Canek Peláez Valdés
Hi,
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
Regards,
JC
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Description: Digital signature
Re: [gentoo-user] look for a file type + sort
Am 13.09.2013 08:24, schrieb Jean-Christophe Bach:
* Canek Peláez Valdés can...@gmail.com [13.09.2013. @00:16:51 -0500]:
On Fri, Sep 13, 2013 at 12:11 AM, Joseph syscon...@gmail.com wrote:
On 09/13/13 00:04, Canek Peláez Valdés wrote:
On Thu, Sep 12, 2013 at 11:58 PM, Canek Peláez Valdés can...@gmail.com
wrote:
On Thu, Sep 12, 2013 at 11:48 PM, Joseph syscon...@gmail.com wrote:
I want to list recursively certain type of files eg. *.pdf but I want to
display: date, path and newest file first.
What is the easiest way of doing it?
ls -l --sort=time $(find /path -iname *.pdf)
If there are no spaces in the filenames/directories, you can drop the
quotes from $().
Sorry, it doesn't work with spaces even with the quotes; if you don't
have spaces in the directories/filenames, do
ls -l --sort=time $(find /path -iname *.pdf)
If you have spaces, you need to set/restore IFS:
S=${IFS}; IFS=$'\n'; ls -l --sort=time $(find . -iname *.pdf); IFS=${S}
Regards.
--
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México
Hm, I've tried:
ls -l --sort=time $(find /home/joseph -iname *.jpg)
got:
ls: invalid option -- '/'
The exact same command (changing joseph with canek) works for me,
except in directories/filenames with spaces, as expected. Do you have
an alias for ls? What does find /home/joseph -iname *.jpg returns?
Regards.
--
Canek Peláez Valdés
Hi,
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
Regards,
JC
This won't work if there are too many files because find will eventually
start ls multiple times.
Try this instead:
find /path -iname '*.pdf' -printf '%T@\t%Tc\t%p\n' | sort -nr |
cut -f 2-
Regards,
Florian Philipp
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Description: OpenPGP digital signature
[gentoo-user] How do I downgrade chromium below 29.0.1547.57?
Arg... dev-lang/v8-3.19.18.19 breaks sci-geosciences/osgearth-2.4. Downgrading to dev-lang/v8-3.18.5.14 breaks www-client/chromium-29.0.1547.57 Can't downgrade www-client/chromium below 29.0.1547.57 because there is no older version in chromium. Bonus: I'm afraid to upgrade my kernel since I use nvidia. Chris :(
[gentoo-user] KDE: unwanted dependencies
Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). -- Best wishes, Yuri K. Shatroff
Re: [gentoo-user] KDE: unwanted dependencies
On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. What this in effect means is you spend an extra 20 minutes building and have a few more meg of disk space consumed by code than you never run. -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] KDE: unwanted dependencies
On 13.09.2013 14:14, Alan McKinnon wrote: On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No Pity. appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. Some time back I heard that KDE devs were striving to make KDE more modular. It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. Well why wasn't it too hard before? It's not quite obvious why one's got to extract some additional functionality, as opposed to including it when needed. A strange approach, all in all. What this in effect means is you spend an extra 20 minutes building and have a few more meg of disk space consumed by code than you never run. I personally care little about the megs, but the moral effect. Thousands of people posted much about these doubtful features and disabling them, and asked not to include them into KDE base, but all effort was vain. In trite words, KDE followed the windows way: we know better what you need... (Okay, no offense.) BTW, it seems that mysql is also a hard dependency for QT now. At least, the average joe can't be scorned any more for not having a server. Hey to all localhost admins! :) Thanks for clarification, Alan. -- Best wishes, Yuri K. Shatroff
Re: [gentoo-user] systemd and lvm
Am 12.09.2013 20:23, schrieb Canek Peláez Valdés: Stefan, what initramfs are you using? dracut, run via your kerninst-script. Could you please explain how is exactly your layout? From drives to partitions to PVs, VGs and LVs? And throw in there also the LUKS and RAID (if used) setup. I will try to replicate that in a VM. Next week, since we have a holiday weekend coming. thanks for your offer. I wil happily list my setup BUT let me tell at first that the latest sys-fs/lvm2-2.02.100 seems to have fixed that semaphore-issue. After booting my desktop with it I quickly tested: # lvcreate -n test -L1G VG03 Logical volume test created # fine! Three times ok ... But I still face the fact that the LVs weren't activated at boot time. Manual vgchange -ay needed ... or that self-written lvm.service enabled as mentioned somewhat earlier. Here my setup: # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda8:00 931,5G 0 disk ├─sda1 8:10 2M 0 part ├─sda2 8:20 2G 0 part [SWAP] ├─sda3 8:30 600G 0 part │ └─md127 9:127 0 595,1G 0 raid1 │ ├─VG03-music 253:00 190G 0 lvm /mnt/music │ ├─VG03-platz 253:10 200G 0 lvm /mnt/platz │ ├─VG03-media 253:2045G 0 lvm /mnt/media │ ├─VG03-home 253:3030G 0 lvm │ ├─VG03-oopsfiles 253:4012G 0 lvm /mnt/oopsfiles │ ├─VG03-dropbox 253:50 5G 0 lvm /mnt/dropbox │ ├─VG03-distfiles 253:6010G 0 lvm /usr/portage/distfiles │ ├─VG03-gentoo32 253:7015G 0 lvm /mnt/gentoo32 │ ├─VG03-xp253:8040G 0 lvm │ └─VG03-test 253:90 1G 0 lvm └─sda6 8:6050G 0 part └─md49:4050G 0 raid1 sdb8:16 0 931,5G 0 disk ├─sdb1 8:17 0 100M 0 part ├─sdb2 8:18 0 98,8G 0 part ├─sdb3 8:19 050G 0 part │ └─md49:4050G 0 raid1 ├─sdb4 8:20 0 12,4G 0 part └─sdb6 8:22 0 595,1G 0 part └─md127 9:127 0 595,1G 0 raid1 ├─VG03-music 253:00 190G 0 lvm /mnt/music ├─VG03-platz 253:10 200G 0 lvm /mnt/platz ├─VG03-media 253:2045G 0 lvm /mnt/media ├─VG03-home 253:3030G 0 lvm ├─VG03-oopsfiles 253:4012G 0 lvm /mnt/oopsfiles ├─VG03-dropbox 253:50 5G 0 lvm /mnt/dropbox ├─VG03-distfiles 253:6010G 0 lvm /usr/portage/distfiles ├─VG03-gentoo32 253:7015G 0 lvm /mnt/gentoo32 ├─VG03-xp253:8040G 0 lvm └─VG03-test 253:90 1G 0 lvm sdc8:32 0 55,9G 0 disk ├─sdc1 8:33 025G 0 part / ├─sdc2 8:34 0 2G 0 part └─sdc3 8:35 0 28,9G 0 part /home sr0 11:01 1024M 0 rom This pretty much says it all, right? 2 hdds sda and sdb 1 ssd sdc root-fs and /home on ssd ... sda and sdb build two RAID-arrays (rather ugly names and partitions ... grown over time): # cat /proc/mdstat Personalities : [raid1] md4 : active raid1 sdb3[0] sda6[2] 52395904 blocks super 1.2 [2/2] [UU] md127 : active raid1 sdb6[0] sda3[1] 623963072 blocks [2/2] [UU] unused devices: none # pvs PV VG Fmt Attr PSize PFree /dev/md127 VG03 lvm2 a-- 595,05g 47,05g --- thanks in advance, Stefan
Re: [gentoo-user] look for a file type + sort
On 09/13/13 08:50, Florian Philipp wrote:
[snip]
Hm, I've tried:
ls -l --sort=time $(find /home/joseph -iname *.jpg)
got:
ls: invalid option -- '/'
The exact same command (changing joseph with canek) works for me,
except in directories/filenames with spaces, as expected. Do you have
an alias for ls? What does find /home/joseph -iname *.jpg returns?
Regards.
--
Canek Peláez Valdés
Hi,
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
Regards,
JC
This won't work if there are too many files because find will eventually
start ls multiple times.
Try this instead:
find /path -iname '*.pdf' -printf '%T@\t%Tc\t%p\n' | sort -nr |
cut -f 2-
Regards,
Florian Philipp
They both work thank you!
But Florian solution seems to work better eg.
Solution 1:
find /home/joseph/ -iname *.jpg -exec ls -l --sort=time {} + |more
-rw-r--r-- 1 joseph users 113350 Aug 16 20:11
/home/joseph/business/Drawings/tolsink_devices/Fostex-HP-P1_to_Ibasso-D12_2.6cm_c2c_69deg.jpg
-rw-r--r-- 1 joseph users 175335 Aug 14 17:16
/home/joseph/business/Drawings/tolsink_devices/M8-AK120_3.4cm_c2c_32deg.jpg.jpg
...
Solution 2.
find /home/joseph -iname '*.jpg' -printf '%T@\t%Tc\t%p\n' | sort -nr | cut -f
2- |more
Fri 30 Aug 2013 11:12:22 PM MDT /home/joseph/xp_share/img216.jpg
Tue 27 Aug 2013 05:18:56 PM MDT /home/joseph/Documents/albums/kuya_boy.jpg
Tue 27 Aug 2013 05:18:56 PM MDT /home/joseph/xp_share/kuya_boy.jpg
Tue 20 Aug 2013 10:31:29 PM MDT /home/joseph/0209C-SS_eyelets.jpg
Tue 20 Aug 2013 10:31:12 PM MDT /home/joseph/0210C.jpg
Fri 16 Aug 2013 08:11:59 PM MDT
/home/joseph/business/Drawings/tolsink_devices/Fostex-HP-P1_to_Ibasso-D12_2.6cm_c2c_69deg.jpg
Wed 14 Aug 2013 05:16:13 PM MDT
/home/joseph/business/Drawings/tolsink_devices/M8-AK120_3.4cm_c2c_32deg.jpg.jpg
...
The first solution did not find the first 5-files showing up in the Solution 2.
--
Joseph
Re: [gentoo-user] systemd and lvm
new info here (for me): https://bugs.gentoo.org/show_bug.cgi?id=480066#c19 gotta test ... right now I don't have the time. S
Re: [gentoo-user] systemd and lvm
Am 13.09.2013 14:54, schrieb Stefan G. Weichinger: new info here (for me): https://bugs.gentoo.org/show_bug.cgi?id=480066#c19 gotta test ... right now I don't have the time. first tests with genkernel --udev ... : negative. More details maybe later this evening.
Re: [gentoo-user] look for a file type + sort
On 13.09.2013 10:24, Jean-Christophe Bach wrote:
[ ... ]
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
-exec is not suitable here because it spawns a `ls` process per each
found entry; aside from being slow, this disallows sorting at all.
You'd prefer
find /home/joseph/ -iname *.pdf |xargs ls -l --sort=time
or, to be space-proof
find /home/joseph/ -iname *.pdf -print0 |xargs -0 ls -l --sort=time
A little late but HTH.
--
Best wishes,
Yuri K. Shatroff
Re: [gentoo-user] look for a file type + sort
On Fri, Sep 13, 2013 at 9:36 PM, Yuri K. Shatroff yks-...@yandex.ru wrote:
On 13.09.2013 10:24, Jean-Christophe Bach wrote:
[ ... ]
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
-exec is not suitable here because it spawns a `ls` process per each found
entry; aside from being slow, this disallows sorting at all.
This is incorrect. If you terminate exec with '+' instead of '\;', only a single
instance of the command is run - the command line is built by appending
each found file to the end of the {} placeholder.
The only reason I see for it to fail is if you have so many files that
it can't be
passed to the argv of the receiving command.
--
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[gentoo-user] Re: KDE: unwanted dependencies
On 13/09/2013 21:35, Yuri K. Shatroff wrote: On 13.09.2013 14:14, Alan McKinnon wrote: On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No Pity. appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. While the USE flag has disappeared, you could try putting nepomuk and akonadi into your package.provided file. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. Some time back I heard that KDE devs were striving to make KDE more modular. KDE upstream is, yes, and how this will affect semantic-desktop remains to be seen. It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. Well why wasn't it too hard before? It's not quite obvious why one's got to extract some additional functionality, as opposed to including it when needed. A strange approach, all in all. The decision to remove the USE flag happened mostly because it maintain, and was in general not well supported anyway. There have been a number of proposals about the situation: do nothing, do a full revert, or implement some compromise. I would hope that we make a final decision about this before stabilising any 4.11 version. BTW, it seems that mysql is also a hard dependency for QT now. At least, the average joe can't be scorned any more for not having a server. Hey to all localhost admins! :) That shouldn't be the case. The default akonadi backend is mysql, why could explain why it's being pulled in.
Re: [gentoo-user] look for a file type + sort
On 13.09.2013 17:43, Mark David Dumlao wrote:
On Fri, Sep 13, 2013 at 9:36 PM, Yuri K. Shatroff yks-...@yandex.ru wrote:
On 13.09.2013 10:24, Jean-Christophe Bach wrote:
[ ... ]
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
-exec is not suitable here because it spawns a `ls` process per each found
entry; aside from being slow, this disallows sorting at all.
This is incorrect. If you terminate exec with '+' instead of '\;', only a single
instance of the command is run - the command line is built by appending
each found file to the end of the {} placeholder.
Sorry, I'm ashamed
I didn't know about this feature. Does it also handle spaces correctly?
The only reason I see for it to fail is if you have so many files that
it can't be
passed to the argv of the receiving command.
There's always an opportunity to use tempfiles ;)
--
Best wishes,
Yuri K. Shatroff
[gentoo-user] Re: How do I downgrade chromium below 29.0.1547.57?
On 13/09/2013 19:10, Chris Stankevitz wrote: Arg... dev-lang/v8-3.19.18.19 breaks sci-geosciences/osgearth-2.4. Downgrading to dev-lang/v8-3.18.5.14 breaks www-client/chromium-29.0.1547.57 Can't downgrade www-client/chromium below 29.0.1547.57 because there is no older version in chromium. Bonus: I'm afraid to upgrade my kernel since I use nvidia. Chris :( Hi, All old ebuilds are always available in CVS: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/www-client/chromium/?hideattic=0, which you could put in a local overlay. Don't forget to file a bug so the science team knows about the breakage! :-) Best regards, Michael
Re: [gentoo-user] Re: KDE: unwanted dependencies
On 13.09.2013 17:50, Michael Palimaka wrote: On 13/09/2013 21:35, Yuri K. Shatroff wrote: On 13.09.2013 14:14, Alan McKinnon wrote: On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No Pity. appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. While the USE flag has disappeared, you could try putting nepomuk and akonadi into your package.provided file. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. Some time back I heard that KDE devs were striving to make KDE more modular. KDE upstream is, yes, and how this will affect semantic-desktop remains to be seen. so there is hope? ;) It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. Well why wasn't it too hard before? It's not quite obvious why one's got to extract some additional functionality, as opposed to including it when needed. A strange approach, all in all. The decision to remove the USE flag happened mostly because it maintain, and was in general not well supported anyway. There have been a number of proposals about the situation: do nothing, do a full revert, or implement some compromise. I would hope that we make a final decision about this before stabilising any 4.11 version. Clear, then I'll opt to wait for the stable 4.11. BTW, it seems that mysql is also a hard dependency for QT now. At least, the average joe can't be scorned any more for not having a server. Hey to all localhost admins! :) That shouldn't be the case. The default akonadi backend is mysql, why could explain why it's being pulled in. Yes, really, I was mislead, it is qtsql which requires setting the mysql flag, but I missed that it was due to akonadi. Thank you for the detailed answer, Michael. -- Best wishes, Yuri K. Shatroff
Re: [gentoo-user] KDE: unwanted dependencies
On Fri, Sep 13, 2013 at 5:14 AM, Alan McKinnon alan.mckin...@gmail.com wrote: On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. What this in effect means is you spend an extra 20 minutes building and have a few more meg of disk space consumed by code than you never run. There was a series of threads recently in the gentoo-desktop mailing list about someone proposing an overlay for KDE minus the semantic/nepomuk stuff. Search the archives for kde-lean.
Re: [gentoo-user] Re: KDE: unwanted dependencies
On Fri, Sep 13, 2013 at 06:04:09PM +0400, Yuri K. Shatroff wrote: On 13.09.2013 17:50, Michael Palimaka wrote: On 13/09/2013 21:35, Yuri K. Shatroff wrote: On 13.09.2013 14:14, Alan McKinnon wrote: On 13/09/2013 12:10, Yuri K. Shatroff wrote: Hi people, I am about to update KDE from 4.10.4 to 4.11.1. Is it possible to avoid installing various nepomuks and akonadis which No Pity. appear to be required now? I have set USE=-semantic-desktop but it doesn't seem to help. While the USE flag has disappeared, you could try putting nepomuk and akonadi into your package.provided file. My current KDE installation is quite happy without that stuff (which also brings along tons of other crap). The KDE maintainers posted quite extensively about this some time back. Some time back I heard that KDE devs were striving to make KDE more modular. KDE upstream is, yes, and how this will affect semantic-desktop remains to be seen. so there is hope? ;) It is too hard to try and extract semantic-desktop out of the KDE build whilst not breaking everything else. What you now do is allow the stuff to be built, and disable the function in System Settings. Well why wasn't it too hard before? It's not quite obvious why one's got to extract some additional functionality, as opposed to including it when needed. A strange approach, all in all. The decision to remove the USE flag happened mostly because it maintain, and was in general not well supported anyway. There have been a number of proposals about the situation: do nothing, do a full revert, or implement some compromise. I would hope that we make a final decision about this before stabilising any 4.11 version. Clear, then I'll opt to wait for the stable 4.11. BTW, it seems that mysql is also a hard dependency for QT now. At least, the average joe can't be scorned any more for not having a server. Hey to all localhost admins! :) That shouldn't be the case. The default akonadi backend is mysql, why could explain why it's being pulled in. Yes, really, I was mislead, it is qtsql which requires setting the mysql flag, but I missed that it was due to akonadi. IIRC you can substitute mysql with sqlite by changing useflags. mysql seems the be the default though... WKR Hinnerk signature.asc Description: Digital signature
Re: [gentoo-user] Re: How do I downgrade chromium below 29.0.1547.57?
On Fri, Sep 13, 2013 at 6:58 AM, Michael Palimaka kensing...@gentoo.org wrote: All old ebuilds are always available in CVS: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/www-client/chromium/?hideattic=0, which you could put in a local overlay. Don't forget to file a bug so the science team knows about the breakage! :-) Works great, thank you. I filed a bug also. Chris
Re: [gentoo-user] systemd and lvm
Am 13.09.2013 15:33, schrieb Stefan G. Weichinger: Am 13.09.2013 14:54, schrieb Stefan G. Weichinger: new info here (for me): https://bugs.gentoo.org/show_bug.cgi?id=480066#c19 gotta test ... right now I don't have the time. first tests with genkernel --udev ... : negative. More details maybe later this evening. I found something. journalctl -b told me that systemd was looking for /usr/sbin/lvm which does not exist. I linked it from /sbin/lvm and this seems to help ... I still don't know exactly where this comes from ... still digging. I also removed lvm2 completely ... checked for lvm-related unit-files and emerged it again ... no /usr/sbin/lvm found with grep. Maybe compiled into ... /usr/lib/systemd/system-generators/lvm2-activation-generator Will have to check the sources or similar.
Re: [gentoo-user] systemd and lvm
Am 13.09.2013 19:36, schrieb Stefan G. Weichinger: /usr/sbin/lvm which does not exist. I linked it from /sbin/lvm and this seems to help ... I still don't know exactly where this comes from ... still digging. I also removed lvm2 completely ... checked for lvm-related unit-files and emerged it again ... no /usr/sbin/lvm found with grep. Maybe compiled into ... /usr/lib/systemd/system-generators/lvm2-activation-generator Will have to check the sources or similar. Oh ... much going on here: https://bugs.gentoo.org/show_bug.cgi?id=484752
Re: [gentoo-user] cross-compiling mosh
Am 12.09.2013 16:55, schrieb Yohan Pereira: On 12/09/13 at 09:21am, Stefan G. Weichinger wrote: ps: anyone using mosh already? Experiences? opinions? I've been using mosh for almost a month now for my remote servers and when I'm away, for my workstation. I like the local echo and the persistent session over dodgy network connections. I can restart my router without worrying about re connecting via ssh. The responsiveness on high latency servers is also a big + for me. Set-up is also fairly straightforward just need to get the locale getup right. Mis-configured locale was the only issue I've ran into so far. I still have to get used to it ... some things are different ... for example scrolling up the terminal history and colors. S
Re: [gentoo-user] Can't ping remote system
+1 on Alan's hunch. I have not used Squid to comment on the specifics and also Grant stated that another proxy gave him similar symptoms. From my limited knowledge a proxy could be stalling because of cache configuration problems, like running out fs space, or inodes and also running out of memory if it has to process simultaneous requests from too many clients at a time. If the problem also manifests when the clients are within the same subnet, then this is unlikely to be a network issue. Which hunch was that? I snipped a lot above but I couldn't find it in there. It was Alan's statement that this problem is not related to your ATT router. I have to come back to this. I tried the www.google.com/nexus/ you mentioned and noticed that the page eats up 1.3MB to load fully, before it starts downloading a flash video. So seems to be a relatively large amount of data that brings up this problem and this could point to tcp window scaling. It also happens on very lightweight sites, but never on squid-cache.org for some reason. echo 0 /proc/sys/net/ipv4/tcp_window_scaling This is typically enabled, but if you notice that a connection stalls and then later on it works fine again, it could be related to a firewall/router not responding as it should to tcp_window_scaling. In this case disabling this would fix the problem when traversing problematic nodes. If you saw no difference, this suggests that window scaling is not an issue. I just tested again and 'echo 0 /proc/sys/net/ipv4/tcp_window_scaling' on both the client and server did not fix the stalls. I would start with the simplest tests first, which involve isolating suspect system components one at a time. Trying to use the same laptop-desktop machines within the LAN, takes the router out the equation - full 1500 byte MTU will be used by both laptop and desktop. OK I will try this as soon as I'm back in that location. Thanks a lot, Grant
Re: [gentoo-user] {OT} image metadata and privacy
Yes, I just had to do this myself. There are two packages: jhead and exiftool. The former does jpegs only. I wound up using exiftool, there's a single command to strip all metadata: exiftool -all= *.jpg If I remember right that creates a copy of the file it processes. You can use exiftool to list tags and also remove individual tags. I used it to make sure there were no GPS tags in pictures from my phone. I thought I had some problems getting exiftool to work with a PNG file but now I realize I didn't understand how to use it. I think that should be the de facto method for removing EXIF data from many different image formats. - Grant Has anyone found a way to completely sanitize images of all potentially privacy-invading metadata for posting online? I recently discovered that there is actually an EXIF thumbnail image. So if you have a photo and you crop it and post it online, the EXIF thumbnail of the original uncropped image is still there for all to see. - Grant
[gentoo-user] {OT} Need a new server
It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 This would be my first experience with multiple CPUs and RAID. Advice on any of the following would be greatly appreciated. Are there any administrative variations for a dual-CPU system or do I just need to make sure I enable the right kernel option(s)? Is the Gentoo Software RAID + LVM guide the best place for RAID install info if I'm not using LVM and I'll have a hardware RAID controller? http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml Since RAM is so nice for buffers/cache, how do I know when to stop adding it to my server? Can I count on this system to keep running if I lose an SSD? Is a 100M uplink enough if this is my only system on the LAN? Is hyperthreading worthwhile? Any opinions on Soft Layer? - Grant
Re: [gentoo-user] {OT} Need a new server
On 13/09/2013 22:00, Grant wrote: It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 This would be my first experience with multiple CPUs and RAID. Advice on any of the following would be greatly appreciated. Are there any administrative variations for a dual-CPU system or do I just need to make sure I enable the right kernel option(s)? Just use the right kernel options, nothing special needs to be done. Individual packages may or may not benefit from lots of cpus, such packages must be configured individually of course Is the Gentoo Software RAID + LVM guide the best place for RAID install info if I'm not using LVM and I'll have a hardware RAID controller? Exactly what RAID controller are you getting? My personal rule of thumb: on-board RAID controllers are not worth the silicon they are written on. Decent hardware raid controllers do exist, but they plug into big meaty slots and cost a fortune. By a fortune I mean a number that will make you gulp then head off to the nearest pub and make the barkeep's day. (Expensive, very expensive). Sans such decent hardware, best bet is always to do it using Linux software RAID, and the Gentoo guide is a fine start. http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml Since RAM is so nice for buffers/cache, how do I know when to stop adding it to my server? When more RAM stops making a difference. The proper answer to your question is mu, meaning it can't really be satisfactorily answered with the info available. Only you can really answer answer it, and only after you have examined your system in detail. But, assuming you will use this hardware for mostly routine normal tasks, 32G RAM is heaps and should be plenty for a long time to come. Nothing you've ever posted leads me to believe you need crazy amounts of RAM. It's not like your business model is to eg load every public blog at wordpress.com with all comments and store it all in an in-memory database :-) Can I count on this system to keep running if I lose an SSD? Yes. If you do RAID even half-way right, you can always tolerate the loss of one disk out of four. It's only if you do striping that you have no redundancy at all Is a 100M uplink enough if this is my only system on the LAN? You mean 100M ethernet right? 100M is actually a lot of traffic. However, if you have a file server and you have on it big files 1G, it can become a drag waiting that extra minute to push 1G through the network. Your NICs on that hardware are 99.9% guaranteed to be 1G. It is well worth the money to replace your switch with a 1000Mb model and invest in decent cables. It's not expensive (a fraction of what that hardware will cost) and you will be glad you did it, even if all the other clients are 100M Law of diminishing returns doesn't apply here. It's a whole lot of bang for relatively little buck Is hyperthreading worthwhile? Yes. Horror stories about hyperthreading being bad and badly implemented date back to 2004 or thereabouts. All that stuff got fixed. Some software out there does not like current hyperthreading models, but these are a) rather specialized and b) the issue is known and the vendor will tell you upfront. Software that uses threads in the modern style tends to fly if hyperthreading is available. But again, this is a very general answer and YMMV Any opinions on Soft Layer? Never heard of it. What is it? -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] {OT} Need a new server
On 09/13/2013 04:00 PM, Grant wrote: It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 This would be my first experience with multiple CPUs and RAID. Advice on any of the following would be greatly appreciated. Are there any administrative variations for a dual-CPU system or do I just need to make sure I enable the right kernel option(s)? Just enable it in the kernel. Is the Gentoo Software RAID + LVM guide the best place for RAID install info if I'm not using LVM and I'll have a hardware RAID controller? http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml No need. Hardware RAID is handled on the RAID controller. Gentoo won't even know about it. LVM is (optionally) up to you. Since RAM is so nice for buffers/cache, how do I know when to stop adding it to my server? Run `htop` every once in a while. If you're using it all and you're not out of money, add more RAM. Otherwise, stop. Can I count on this system to keep running if I lose an SSD? Yes. RAID10 both stripes and mirrors. So you can lose one, and it's definitely mirrored on another drive. Now you have three drives. If you lose another one, is it mirrored? Well, maybe, if you're lucky. There's a 2/3 chance that the second drive you lose will be one of the remaining mirror pair. Recommendation: add a hot spare to the system. Is a 100M uplink enough if this is my only system on the LAN? If you're using it all and you're not out of money, add more bandwidth. Otherwise, stop.
Re: [gentoo-user] look for a file type + sort
On 09/13/2013 07:48 AM, Joseph wrote:
I want to list recursively certain type of files eg. *.pdf but I want
to display: date, path and newest file first.
What is the easiest way of doing it?
Perhaps not the most elegant solution.
ls -lt `du -a|grep -i '\.pdf$'|awk '{ print $2 }'`|awk '{ print
$6,$7,$8,$9,$10,$11 }'
Re: [gentoo-user] {OT} Need a new server
It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 This would be my first experience with multiple CPUs and RAID. Advice on any of the following would be greatly appreciated. Is the Gentoo Software RAID + LVM guide the best place for RAID install info if I'm not using LVM and I'll have a hardware RAID controller? Exactly what RAID controller are you getting? My personal rule of thumb: on-board RAID controllers are not worth the silicon they are written on. Decent hardware raid controllers do exist, but they plug into big meaty slots and cost a fortune. By a fortune I mean a number that will make you gulp then head off to the nearest pub and make the barkeep's day. (Expensive, very expensive). Sans such decent hardware, best bet is always to do it using Linux software RAID, and the Gentoo guide is a fine start. I'm told it will likely be an Adaptec 7000 series controller. Since RAM is so nice for buffers/cache, how do I know when to stop adding it to my server? When more RAM stops making a difference. The proper answer to your question is mu, meaning it can't really be satisfactorily answered with the info available. Only you can really answer answer it, and only after you have examined your system in detail. But, assuming you will use this hardware for mostly routine normal tasks, 32G RAM is heaps and should be plenty for a long time to come. Nothing you've ever posted leads me to believe you need crazy amounts of RAM. It's not like your business model is to eg load every public blog at wordpress.com with all comments and store it all in an in-memory database :-) In that case maybe I'll go with 16GB instead. It's easy to add more later I suppose. Any opinions on Soft Layer? Never heard of it. What is it? It's a host in the US. I should have said so. http://www.softlayer.com - Grant
Re: [gentoo-user] {OT} Need a new server
It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 This would be my first experience with multiple CPUs and RAID. Advice on any of the following would be greatly appreciated. Is the Gentoo Software RAID + LVM guide the best place for RAID install info if I'm not using LVM and I'll have a hardware RAID controller? http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml No need. Hardware RAID is handled on the RAID controller. Gentoo won't even know about it. I had no idea. How awesome. So the entire array shows up as /dev/sda when using a real hardware controller? Just enable an extra kernel config option or two and it works? Can I count on this system to keep running if I lose an SSD? Yes. RAID10 both stripes and mirrors. So you can lose one, and it's definitely mirrored on another drive. Now you have three drives. If you lose another one, is it mirrored? Well, maybe, if you're lucky. There's a 2/3 chance that the second drive you lose will be one of the remaining mirror pair. Recommendation: add a hot spare to the system. Would the hot spare be in case I lose 2 drives at once? Isn't that extraordinarily unlikely? Are modern SSDs reliable enough to negate the need for mirroring or do they still crap out? - Grant
Re: [gentoo-user] {OT} Need a new server
On 09/13/2013 09:00 PM, Grant wrote: It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 nice Can I count on this system to keep running if I lose an SSD? if a built in raid controller, yes. one thing you might want to check is linux tools for management -- you wouldn't want to reboot just go to go into the raid tools and check if it requires a rebuild, and you want to be able to schedule regular scrubs and maybe get a report. you might also like to consider OOB management such as IPMI, dell and HP do very lovely web based control panels that are independent of your main o/s allowing you to get alerts when bad things happen, and crucially watch reboot process from remote locations. Is a 100M uplink enough if this is my only system on the LAN? gigabit NICs are pretty cheap i'd be surprised if any new machine didn't have gigabit. i would suggest if you ever want to transfer data over 10GB across the network you should request gigabit Is hyperthreading worthwhile? Any opinions on Soft Layer? - Grant are you putting this server in colocation at softlayer? if so OOB is a requirement, and gigabit is not
Re: [gentoo-user] {OT} Need a new server
It's time to switch hosts. I'm looking at the following: Dual Xeon E5-2690 32GB RAM 4x SSD RAID10 nice Can I count on this system to keep running if I lose an SSD? if a built in raid controller, yes. one thing you might want to check is linux tools for management -- you wouldn't want to reboot just go to go into the raid tools and check if it requires a rebuild, and you want to be able to schedule regular scrubs and maybe get a report. you might also like to consider OOB management such as IPMI, dell and HP do very lovely web based control panels that are independent of your main o/s allowing you to get alerts when bad things happen, and crucially watch reboot process from remote locations. Good idea, I will look into IPMI. Is a 100M uplink enough if this is my only system on the LAN? gigabit NICs are pretty cheap i'd be surprised if any new machine didn't have gigabit. i would suggest if you ever want to transfer data over 10GB across the network you should request gigabit I should be OK with 100M. I shouldn't be copying anything across the LAN. Any opinions on Soft Layer? - Grant are you putting this server in colocation at softlayer? if so OOB is a requirement, and gigabit is not I decided against colocation because I don't want to be responsible for fixing hardware problems. It would be a hosted machine. - Grant
Re: [gentoo-user] {OT} Need a new server
On Friday 13 Sep 2013 14:47:35 Grant wrote: Would the hot spare be in case I lose 2 drives at once? Isn't that extraordinarily unlikely? Not really. One fails and you don't notice for a while, or it takes a while to recover from it. Then a second one fails. You're up queer street. -- Regards, Peter
Re: [gentoo-user] {OT} Need a new server
On 09/13/2013 03:47 PM, Peter Humphrey wrote: On Friday 13 Sep 2013 14:47:35 Grant wrote: Would the hot spare be in case I lose 2 drives at once? Isn't that extraordinarily unlikely? Not really. One fails and you don't notice for a while, or it takes a while to recover from it. Then a second one fails. You're up queer street. I like to do RAID6 now because I've been burned by this. The hot spare did work and automatically start rebuilding, but another drive failed during the rebuild process. Not that RAID6 will help if three drives fail, but hey. Another thing I've read is that firmware bugs on SSDs can wipe out a whole array. I suspect it is when the raid has all the same manufacturer/model in it and a bug appears on multiple drives killing the array. I can't remember the details but I do believe the rebuild procedure causing lots of writes and the drives bug out because of all the writes. I'll admit this is not something that I've directly seen but you may want to consider it, maybe even having 2 sets of 2 different models in the array. My google-fu is failing me, I can't find that article where I read this. Dan
Re: [gentoo-user] {OT} Need a new server
On 09/13/2013 05:47 PM, Grant wrote: I had no idea. How awesome. So the entire array shows up as /dev/sda when using a real hardware controller? Just enable an extra kernel config option or two and it works? Yep. Yes. RAID10 both stripes and mirrors. So you can lose one, and it's definitely mirrored on another drive. Now you have three drives. If you lose another one, is it mirrored? Well, maybe, if you're lucky. There's a 2/3 chance that the second drive you lose will be one of the remaining mirror pair. Recommendation: add a hot spare to the system. Would the hot spare be in case I lose 2 drives at once? It's just to minimize the amount of time that you're running with a busted drive. The RAID controller will switch to the hot spare automatically without any human intervention, so you only have to keep your fingers crossed for e.g. 3 hours while the array rebuilds. This is as opposed to 3 hours + (however long it took the admin to notice that a drive has failed). Isn't that extraordinarily unlikely? If the failures were random, yes, but they aren't -- they just seem that way. The drives that you use in a hardware RAID array should ideally be exactly the same size and have the same firmware. It's therefore not uncommon to wind up with a set of drives that all came off the same manufacturing line at around the same time. If there's a minor defect in a component, like say a solder joint that melts at too low of a temperature, then they're all much more likely to fail at around the same time as the first one. Are modern SSDs reliable enough to negate the need for mirroring or do they still crap out? I don't have any experience with SSDs, but a general principle: ignore what anyone says, mirror them anyway, and make lots of backups.
Re: [gentoo-user] look for a file type + sort
On Sep 13, 2013 9:53 PM, Yuri K. Shatroff yks-...@yandex.ru wrote:
On 13.09.2013 17:43, Mark David Dumlao wrote:
On Fri, Sep 13, 2013 at 9:36 PM, Yuri K. Shatroff yks-...@yandex.ru
wrote:
On 13.09.2013 10:24, Jean-Christophe Bach wrote:
[ ... ]
This one should work:
find /home/joseph/ -iname *.pdf -exec ls -l --sort=time {} +
-exec is not suitable here because it spawns a `ls` process per each
found
entry; aside from being slow, this disallows sorting at all.
This is incorrect. If you terminate exec with '+' instead of '\;', only
a single
instance of the command is run - the command line is built by appending
each found file to the end of the {} placeholder.
Sorry, I'm ashamed
I didn't know about this feature. Does it also handle spaces correctly?
I'm not sure how the internals work. As best as I can guess, it constructs
the argv directly so spaces shouldn't be an issue. Spaces are an issue when
the output is piped through, since the pipe itself knows no difference
between filename and output spaces, hence the need to force zero delimiters
between filenames. Since find runs the command directly, you shouldn't
encounter this. But Ive yet to test.
The only reason I see for it to fail is if you have so many files that
it can't be
passed to the argv of the receiving command.
There's always an opportunity to use tempfiles ;)
--
Best wishes,
Yuri K. Shatroff
