Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
Control: tags -1 + pending Hi, 2014-10-21 01:16 積丹尼 Dan Jacobson: Package: aptitude Version: 0.6.11-1 Severity: wishlist Here we see that we had all the archives we needed, but are thwarted anyway due to a missing partial/ directory that we aren't going to be using anyway. Need to get 0 B of archives. After unpacking 98.2 MB will be used. Do you want to continue? [Y/n/?] Y E: Archives directory /mnt/usb/extra1/partial is missing. - Acquire (30: Read-only file system) Writing extended state information... In the worst case the user could not proceed and must make a trip to town to purchase additional read-write media upon which to make a partial/ directory. ... or alternatively, if it's a knowledgeable user, it can occur to her/him to create a symlink/bind-mount/etc to somewhere writeable, like the /tmp/blah directory, to appease the stubborn program. (BTW, it would help to have more descriptive titles, e.g. including words such as "download" or [parts of] the error message, so it's easier to find related bugs when people are looking into a particular area). Anyway, got a way around this, so marking as +pending. Cheers. -- Manuel A. Fernandez Montecelo
Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
> "MAFM" == Manuel A Fernandez Montecelo > writes: >> E: Archives directory /mnt/usb/extra1/partial is missing. - Acquire (30: >> Read-only file system) MAFM> ... or alternatively, if it's a knowledgeable user, it can occur to MAFM> her/him to create a symlink/bind-mount/etc to somewhere writeable, like MAFM> the /tmp/blah directory, to appease the stubborn program. I think some variable $ apt-config dump|grep -i partial $ would be better, as for read-only media, one cannot create symlinks. Also that bind stuff might not work on all version of linux etc. MAFM> (BTW, it would help to have more descriptive titles, e.g. including MAFM> words such as "download" or [parts of] the error message, so it's easier MAFM> to find related bugs when people are looking into a particular area). OK. MAFM> Anyway, got a way around this, so marking as +pending. Hope it involves a new variable.
Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
2016-02-26 3:14 GMT+00:00 積丹尼 Dan Jacobson : >> "MAFM" == Manuel A Fernandez Montecelo >> writes: > >>> E: Archives directory /mnt/usb/extra1/partial is missing. - Acquire (30: >>> Read-only file system) > > MAFM> ... or alternatively, if it's a knowledgeable user, it can occur to > MAFM> her/him to create a symlink/bind-mount/etc to somewhere writeable, like > MAFM> the /tmp/blah directory, to appease the stubborn program. > > I think some variable > $ apt-config dump|grep -i partial > $ > would be better, as for read-only media, one cannot create symlinks. > Also that bind stuff might not work on all version of linux etc. partial/ in this case is tied to Dir::Cache "var/cache/apt/"; Dir::Cache::archives "archives/"; You have to have modified the above to point to /mnt/usb/extra1 instead, for the error message to include that string. The thing is that partial/ cannot be changed in isolation to the others, you cannot have "archives" pointing to /mnt/usb/extra1 and partial to "/tmp/emergency-partial"; and if you just change "archives" (without copying the files over), then the packages that you have downloaded in "extra1" are of no use and would be downloaded again. You are right about not always being able to create symlinks or bind-mount not always working, etc; but there are other more pedestrian solutions: - hopefully just by remounting the USB partition as RW would have worked (provided that it has permissions/space to create an empty partial/ dir, which is only a few KB) - same case as above, but creating the partial/ by hand, and then the partition can be remounted RO again, - copying those ~100MB of files to /somewhere/writable/ and point the above variables to it instead of /mnt/usb/extra1 In short, there are many possible solutions less dramatic than having to buy a new USB :-) > MAFM> Anyway, got a way around this, so marking as +pending. > > Hope it involves a new variable. No, it involves not trying to download when there's no need to (which implies extra actions from libapt like "setting up the directories, create partial if missing, etc"). I was doubting whether it was worthy of implement this extra check to not download, since I think that this is relatively obscure corner-case and easily solvable. But then I thought that might be useful in the case of emergency recoveries with external media mounted as RO, it's a small micro-optimisation for aptitude in itself, etc. Cheers. -- Manuel A. Fernandez Montecelo
Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
MAFM> - hopefully just by remounting the USB partition as RW would have MAFM> worked (provided that it has permissions/space to create an empty MAFM> partial/ dir, which is only a few KB) MAFM> - same case as above, but creating the partial/ by hand, and then the MAFM> partition can be remounted RO again, MAFM> - copying those ~100MB of files to /somewhere/writable/ and point the MAFM> above variables to it instead of /mnt/usb/extra1 E.g., optical read-only media, also some RO directory on a LAN. And with not enough local disk space to (wastefully need to) copy all the files (4.7GB perhaps, just to mkdir an empty partial/) to somewhere writeable. MAFM> In short, there are many possible solutions less dramatic than having MAFM> to buy a new USB :-) MAFM> Anyway, got a way around this, so marking as +pending. >> >> Hope it involves a new variable. MAFM> No, it involves not trying to download when there's no need to (which MAFM> implies extra actions from libapt like "setting up the directories, MAFM> create partial if missing, etc"). MAFM> I was doubting whether it was worthy of implement this extra check to MAFM> not download, since I think that this is relatively obscure MAFM> corner-case and easily solvable. But then I thought that might be MAFM> useful in the case of emergency recoveries with external media mounted MAFM> as RO, it's a small micro-optimisation for aptitude in itself, etc. Well I hope that will cover all the cases when a partial/ cannot be created. And... it wouldn't hurt to have an extra APT variable anyway in addition to your solution ... e.g., the user is downloading and writing the archives to some "write-once" (think CD-ROM) media, but wants any temporary work done elsewhere...
Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
2016-02-26 12:35 積丹尼 Dan Jacobson: MAFM> I was doubting whether it was worthy of implement this extra check to MAFM> not download, since I think that this is relatively obscure MAFM> corner-case and easily solvable. But then I thought that might be MAFM> useful in the case of emergency recoveries with external media mounted MAFM> as RO, it's a small micro-optimisation for aptitude in itself, etc. Well I hope that will cover all the cases when a partial/ cannot be created. It will not attempt to create partial/ at all, so it addresses the related problems. And... it wouldn't hurt to have an extra APT variable anyway in addition to your solution ... e.g., the user is downloading and writing the archives to some "write-once" (think CD-ROM) media, but wants any temporary work done elsewhere... These variables come from APT. Presumably there are some "acquire" methods (like cdrom, FTP, http, etc) that might be better suited for those use-cases where the data is to be obtained from RO media. This is specifically about local cache (which can be disabled anyway). Cheers. -- Manuel A. Fernandez Montecelo
Bug#766122: thwarted due to missing partial/ directory that we aren't going to use anyway
Package: aptitude Version: 0.6.11-1 Severity: wishlist Here we see that we had all the archives we needed, but are thwarted anyway due to a missing partial/ directory that we aren't going to be using anyway. Need to get 0 B of archives. After unpacking 98.2 MB will be used. Do you want to continue? [Y/n/?] Y E: Archives directory /mnt/usb/extra1/partial is missing. - Acquire (30: Read-only file system) Writing extended state information... In the worst case the user could not proceed and must make a trip to town to purchase additional read-write media upon which to make a partial/ directory. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
