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求助: DNF 仓库 '_local' 是什么? f22每次安装或升级软件, 都有信息 langpacks: No languages are enabled 同步仓库 '_local' 的缓存失败,来自 'file:///var/lib/dnf/plugins/local':Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried,禁用。 请问这个仓库 '_local'是什么? dnf repolist all 的信息: langpacks: No languages are enabled 同步仓库 '_local' 的缓存失败,来自 'file:///var/lib/dnf/plugins/local':Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried,禁用。 Last metadata expiration check performed 0:02:43 ago on Fri Jul 24 17:42:11 2015. 仓库标识 仓库名称 状态 _local _local 禁用 *fedora Fedora 22 - i386 启用: 37,654 fedora-debuginfo Fedora 22 - i386 - Debu 禁用 fedora-source Fedora 22 - Source 禁用 rpmfusion-free RPM Fusion for Fedora 2 启用: 418 rpmfusion-free-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-free-rawhide RPM Fusion for Fedora R 禁用 rpmfusion-free-rawhide-debuginfo RPM Fusion for Fedora R 禁用 rpmfusion-free-rawhide-source RPM Fusion for Fedora R 禁用 rpmfusion-free-source RPM Fusion for Fedora 2 禁用 rpmfusion-free-updates RPM Fusion for Fedora 2 启用: 0 rpmfusion-free-updates-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-free-updates-source RPM Fusion for Fedora 2 禁用 rpmfusion-free-updates-testing RPM Fusion for Fedora 2 禁用 rpmfusion-free-updates-testing-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-free-updates-testing-source RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree RPM Fusion for Fedora 2 启用: 151 rpmfusion-nonfree-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-rawhide RPM Fusion for Fedora R 禁用 rpmfusion-nonfree-rawhide-debuginfo RPM Fusion for Fedora R 禁用 rpmfusion-nonfree-rawhide-source RPM Fusion for Fedora R 禁用 rpmfusion-nonfree-source RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-updates RPM Fusion for Fedora 2 启用: 0 rpmfusion-nonfree-updates-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-updates-source RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-updates-testing RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-updates-testing-debuginfo RPM Fusion for Fedora 2 禁用 rpmfusion-nonfree-updates-testing-source RPM Fusion for Fedora 2 禁用 *updates Fedora 22 - i386 - Upda 启用: 6,028 updates-debuginfo Fedora 22 - i386 - Upda 禁用 updates-source Fedora 22 - Updates Sou 禁用 updates-testing Fedora 22 - i386 - Test 禁用 updates-testing-debuginfo Fedora 22 - i386 - Test 禁用 updates-testing-source Fedora 22 - Test Update 禁用 这个'_local'明显已经被禁用了, 怎么让他每次不用缓存?
求助: 错误使用 dd 命令, 详情见内, 高手请入 实话说, 犯错比较愚蠢, 就不要取笑了 想在一台新机装fedora20, 打算试试使用dd命令制作U盘DVD启动盘 本机共三块盘 sda:fedora19, sdb:win7, sdc:老盘xp准备格掉作资料盘, 没记错的话U盘当时实际是sdh或是sdf之类 Fedora-20-i386-DVD.iso所在文件夹下, 命令 dd if=Fedora-20-i386-DVD.iso of=/dev/sdb bs=8M conv=fsync 发现盘符不对, 立刻Ctrl+C终止, Win7系统盘破坏. 重新格式化b盘, ghost win7, 进入fedora19发现Caja(mate 桌面)里有一块盘Fedora 20 i386, 点击挂载出现 无法挂载 Fedora 20 i386 Error mounting /dev/sdb2 at /run/media/xxx/Fedora 20 i386: Command-line `mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sdb2" "/run/media/xxx/Fedora 20 i386"' exited with non-zero exit status 32: mount: /dev/sdb2 写保护,将以只读方式挂载 mount: 文件系统类型错误、选项错误、/dev/sdb2 上有坏超级块、 缺少代码页或助手程序,或其他错误 有些情况下在 syslog 中可以找到一些有用信息- 请尝试 dmesg | tail 这样的命令看看。 dmesg | tail 查看 [ 5674.440025] raid6: sse1x2 2625 MB/s [ 5674.457005] raid6: sse2x1 3769 MB/s [ 5674.474005] raid6: sse2x2 4257 MB/s [ 5674.474007] raid6: using algorithm sse2x2 (4257 MB/s) [ 5674.474008] raid6: using ssse3x1 recovery algorithm [ 5674.509456] bio: create slab <bio-1> at 1 [ 5674.509774] Btrfs loaded [ 5674.597524] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 6089.978296] perf samples too long (2506 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 [ 7876.510124] isofs_fill_super: bread failed, dev=sdb2, iso_blknum=16, block=32 用diskgenius查b盘坏道, 正常 求助, 如何处理Caja里出现的这个错误. 系统监视器和gparted里都看不到此盘.
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